When I bought my 2021 Ram 2500 Tradesman, I purchased a spray in bed liner to protect the bed. Because people throw stuff in the back of their truck, bare metal will eventually be exposed and then the rust starts. Well, I need this truck to last for a long time so a friend recommended that I put in a rubber bed mat on top of the spray in liner.
The idea behind the rubber bed mat is that it will take the abuse rather than the liner. Eight months later, I really thing this idea paid off just based on what I’ve hauled so far but I am jumping ahead.
I did some digging and found Husky Truck Mats on Amazon. Now Amazon’s “Does it Fit” feature isn’t perfect so I did some measurements and confirmed before I bought. My 2021 Ram 2500 Tradesman has the 6′ 4″ short bed because it has the crew cab. Amazon says the following mat shouldn’t fit my truck but it actually does perfectly:
Installation
You have to love stuff like this – I just rolled it into place. No trimming, no drama – it fit.
It lliterally rolled right into place with no trimming.
Results
I honestly couldn’t be happier. It’s thick enough to protect the bed and was affordable — if it tears or gets real beat up then I can afford to replace it. So far though, it’s doing just fine. It’s dirtier sure but is still in great shape.
The mat looks great and is holding up very well. Granted the above was right after I bought it in October 2021 but other than being dirty in May 2022, it’s held up great despite hauling a variety of junk (literally), furniture and other stuff.
The mat is relatively thick. One thing to note, it did have a bit of a smell but it dissipated quickly. Some guys report their brand and model of truck matt as being really smelly but I did not have that problem with the Husky.
I’m going to list all of the Husky truck bed mats next so you’ll need to look for your Ram, Chevy, Ford or Toyota truck and bed size.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
On September 11th, 2021, I took possession of my first new truck – a 2021 Ram 2500 Tradesman. I love the truck but have a challenge – I am 54, heavier than I should be and different muscle groups and joints compete to see who will hurt the most at a given time. Getting into the bed when the tailgate is a mile off the ground is no trivial matter for me. I did find an awesome solution though and want to share it with you.
There are a number of options on the market – steps and tailgate ladders too but I ruled the ladders out given the space they take. If you want something that does the job, is small, and folds out of the way when you are done, you want a bumper step.
I wanted a step that was simple to install, durable and looked good. After a while, I decided my best bet was to go with the actual Mopar step for my truck – 82215842AH. That step will work on the fifth gen 2500 and 3500 Rams – so, 2019-2022 so far.
By the way, what sold me is that a few guys recommended it online and it is a bolt in installation – you remove a few bolts and then install step and use the longer replacement bolts they send you – there is no drilling.
I ordered mine for $287 + $13 S&H — it’s not cheap but worth it. When I wrote this post, the good news was that there are a lot of sellers on eBay that you can check and the are prices both lower and higher than what I paid – just be sure to go with a reputable seller is my advice.
What Arrived
A few days later, UPS arrived with a surprisingly heavy box. When I opened it, there was the step and the bolts that would be needed.
The step is sitting vertically on the left then you can see the bracked and bolts to the right.
Installation
I’d say installation took me less than an hour and that was with a few interruptions. Interestingly enough, the RAM instructions are really illustrations without words. You can find the PDF if you search for it and want to read it in advance.
I did spend some time laying on my back getting oriented. The one thing I’ll point out is that all of the bolts are metric – gone are the days of SAE inch fasteners. So, have your metric set out.
It was all very straight forward – I just followed the instructions. For someone new to installing stuff like this, one tip I’d give you is to leave all of the bracket bolts lose so you can wiggle things into place and then tighten them down.
When I was younger and worked on cars a lot, we did “farmer tight” meaning we went by feel. Now, many, many years later, I use torque wrenches and set the fasteners to the torque specified. I’d recommend you use a torque wrench to do the final tightening of the bolts – the installation sheets provides the torque specs – you need one or more torque wrenches to tighten down the bolts to 16.6, 50 and 140 foot pounds. I put it this way because each torque wrench will have a stated range. Little torque wrenches may not be able to go up to 140 and large torque wrenches may not go below 50 foot pounds.
Torque wrenches are a good investments and ince you have them, you’ll find uses for them all the time if you work on cars, tractors, and other machinery. Note, if you buy a clicker style wrench where you set the torque at the bottom of the handle, and it “clicks” when you reach the specified torque, just be sure to reset the scale to zero when you are done so the spring doesn’t weaken over time.
Results
It’s fantastic. I installed it in October of 2021 and have used it a ton getting into the bed, loading stuff, etc. I weight about 230 pounds and it is rock solid – even when I am carrying stuff. It’s one of the best accessories that I have bought for my truck and highly recommend it.
The design is really slick. The step is spring loaded and folds very smoothly – both when you pull it out and push it in.
The step itself is textured and non-slip. Boy is it rugged – no flexing despite my weight and me carrying stuff.
Even my wife likes the Mopar bumper step.
Conclusion
Honestly, I can’t recommend this step enough. Easy install, rugged, easy to deploy and retract — it’s a really nice accessory for your truck if you want an easy option to get in and out of the bed that doesn’t take up much space at all.
If you are looking for a step – I’d recommend this one.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
I have a really nice Eagle galvanized steel can that I bought new back in the stone age. Over time the rubberized nozzle started cracking at the base and I kept building it up with RTV silicone until I decided I better buy a new nozzle. Why did I bother? First off, the old Eagle cans are excellent – mine must be pushing 20+ years old. Second, new cans suck thanks to the EPA mandating the bizarre nozzles that you see that are simply horrid to work with. In short, I didn’t want to throw out a perfectly good can and needed to find a replacement nozzle for it.
The first thing I tried was to buy a universal spout kit off Amazon and it didn’t match up to the Eagle’s 1.75″ threaded mouth. So, I had to do some digging – what I should have done in the first place. Turns out there was an eBay listing for an exact replacement for an Eagle can *but* it was $16.95. Well, I figured the can was in such good shape that spending that much on a gamble was worth it.
The replacement cap and nozzle arrived and the first time I put it on I really had to press down on the cap to get the threads in the cap to catch the threads on the can. It’s easier now and my best guess is that the material the spout was made from needed to compress some … whatever it was, it fits okay now.
So, if you are interested, the one I bought is from Rotopax, is made in the USA and is on eBay – click here for the listing. Now, my old can is back in use.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
I posted about 9mm magazines for the Rock Island Armory (RIA) FS A2 pistols and a friend on FB, pointed out they weren’t 2011s. The difference being the 2011 has a modular grip assembly and the RIA pistols are just over-sized 1911s. It dawned on me that I really didn’t know the difference and needed to do some reading.
How “2011” originated
It turns out that Chris was right – there is a difference – a substantial difference.
From what I have read the original 2011 concept was essentially a modular 1911 receiver that could have the mag well / grip sub-frame swapped out to allow for more versatility. The 2011 design and patent was by Virgil Tripp and Sandy Strayer who together formed STI and then went separate ways and shared the patent,.
The design is really cool and the best way to help you learn more is to provide you a link to the original patent application that has written descriptions and drawing — click here to see the orginial patent.
Back to the Rock Islands
The RIA pistols are oversized 1911 pistols. The grip and mag well area are integral parts of the frame and can’t be separated plus they use thin grip panels.
At the top is my RIA 566459mm Pro Match. Below it is an 80% frame for that model. Note now the mag wel/grip area are all part of the receiver and that there are grip panels. It’s not modular in other words. This makes it an over-sized 1911 and not a 2011.
In Closing
So now I know a bit more about the differences between the 2011 and 1911 designs. The RIA pistols are oversized-1911 designs and not true to the original 2011 design concept.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
This post reflects a journey I’ve been on regarding making and selling magazines for the 9mm Rock Island Armory (RIA) FS A2 pistols. These pistols are based on Para Ordnance designs that use a staggered magazine that can accomodate 15+ rounds in a fattened 1911 grip. Think of them as 1911 pistols on steroids with a fat grip the holds more rounds they hold more rounds so sometimes RIA calls them “HC” for high capacity.
These are my two 9mm test platforms. The top pistol is the 56645 Pro Ultra Match HC (you can see the checkering on the front strap of the grip) and the bottom is 51679 Tac Ultra FS HC.
For over a year now, I’ve been making magazines for the FS A2 pistols chambered in 10mm and .40 S&W. The interesting thing is that 9mm, .38 Super, .40 S&W and 10mm all use the same frame. You’d think making the 9mm mags would be an easy jump – I did at least — maybe it was just me.
The 10mm round is bigger than 9mm – it is fatter and longer. You don’t think about that a lot until you are trying to get the ejecting case to hit the ejector – the 10mm round is a hell of a lot easier to make hit the ejector than the 9mm. Also, the relatively short 9mm round has a long way to travel before it goes into the chamber. I found myself having to kick out some assumptions I had for magazines in order to get the 9mm round to reliably work.
In general, I now understand why the 1911 community is so fast to cast suspicion on the magazines when feed and ejection problems are happening. John Browning was an absolute genius and the 1911 design shows it but it does need all of the parts to be working together correctly to deliver a reliabile pistol.
Oh yeah, the magazines can make or break reliability. Let me share with you some observations I’ve made so far about the magazine after making a few hundred of the 9mm models either modifying P18 magazines (.38/9mm) or P16 mags (10/.40).
What about feed lip length?
The feed lips are the part of the magazine that hold the top round down and at the right angle. If they are too short, the round tends to be presented at too high of an angle and if they are too long, the front gap may not be adjustable enough to support the feed angle needed.
The blue rounds are A-Zoom Snap Caps. I use them during magazine prototyping and testing rather than live ammo The magazine lips are long pieces of rounded sheet metal that are going up the sides of the cartridge and are both positioning and retaining the round. Note the plastic “shelf” of the follower that is on the left bottom edge of each magazine that is level with the metal body. When the last round is fed from the magazine, the follower rises and that shelf is what engages the slide lock lever to put upwards pressure on it. When the slides travels rearword with the extraction and ejection of the last round, the slide lock level pushes up and locks the slide open ready for the next magazine to be fired.
The original 1911 was designed for .45 ACP but we are feeding a little short round from the back of the magazine towards the chamber a mile away. How can we maintain control? The short answer is have longer feed lips on the magazine. These longer lips are what get the relatively small 9mm round from the back of the magazine all the way into the chamber.
“We’ve got a long way to go and a short time to get there” were the famous words in “East Bound and Down” by Jerry Reed in the movie classic Smokey and the Bandit. The feed lips need to control the feeding of the cartridge all the way from the back of the magazine to the point the bullet engages the feed ramp and then starts to go into chamber. A 9mm Luger cartrdge is 1.169″ long. In comparison, 10mm Auto is 1.260″ overall. and .45 ACP is 1.275″. You might thing those differences are small but they definitely impact the design and operation of the pistol – they need to be planned for if you want reliability.
The reason I listed this section is that the length of the feed lips can vary depending on the model of pistol so if you are trying to use a magazine from another type of pistol you may find you need to trim the feed lips back. I didn’t have to change the P16 or P18 mags for the 9mm but I did need to modify the P16 Para mags to feed reliability in RIA 10mm and .40 S&W pistols.
What happens if the front feed lip gap is too wide? You tend to get a Failure to Eject (FTE) or the Slide locks open prematurely
The feed lip gap at the front of the magazine controls where the cartridge is going vertically – the angle towards the chamber. Increase the gap and the front of cartridge rises and decrease it and the angle goes down. But wait, there’s more.
If the front of the round pushes up too much, it will cause the extracting case to slide up the breech face and out of position thus missing the ejector bar you can see just above the rear of the cartidge. The tell tale is that you have the new round and the old case in the back of the slide at the same time.
Now here’s the first gotcha. The feed lip gap still controls the rise of the bullet in the front but if it goes too far, the bullet is going to interfere with extraction, pushing the extracted case upwards on the breach face of the slide and out of position to correctly engage the ejector and all of a sudden you have the old case in the slide, a new round trying to feed and you have a jam. If you go for a front feed lips gap of .305-.308″ you will be fine. Once you cross .310″, you are going to cause the ejection problem I just mentioned
There’s an interesting design issue with all 1911 breech faces – they are flat. The extractor pushes the case to the right in this photo. The ejector bar is exiting its cut out from the breech face in the lower right but there is nothing to truly limit upwards travel.
I’ve spent a lot of time chasing this dimension because you tend to get better feeding the more the bullet is oriented towards the chamber but with the 9mm you have to be mindful of the impacts on the the ejecting cartridge.
By the way, in addition to interfering with ejection, a feed lip gap that is too wide can allow the follower to travel too far upwards and prematurely lock the slide open with one cartridge remaining in the magazine.
I should point out that the most likely cause of a failure to eject (FTE) is a faulty magazine. The second most likely is a worn or failing extractor. It probably is not the ejector bar.
What happens if the front feed lip gap is too narrow? You tend to get a failure to feed (FTF)
If you move the feed lips to close together, the new round that needs to be fed into the chamber comes in at too flat of an angle and smashes straight into the feed ramp. On one hand the 9mm bullet is rounded abruptly but the feed ramp is quite abrupt. I tend to find that somewhere under .302″ this happens but I haven’t done a lot of testing on this dimension because I have been more focused on wanting the cartridge angled up vs. down.
The round travels up the feed ramp but it needs have enough of an upward angle to ride the ramp up. If it is too shallow it will slam the bullet into the ramp and stop. Note that RIA did polish the ramp – that was an unexpected nice touch. In general, I’d recommend polishing the ramp smooth to aid in feeding. Also, look at the shape of the snap cap – it mimics a classic full metal jacket 115gr bullet. The curvature of the bullet will aid in feeding. Different bullet shapes can affect feeding in some pistols and you may need to tweak certain mags for certain rounds – it’s next to impossible to guess so test your pistol with certain combinations of cartrdiges and magazines to ensure they are reliable. You may find your pistol likes some and hates others. I’d probably just move to another cartridge if it were me and my pistol had issues with a given round.
Yeah, the lips have a memory
So the magazines are made of high carbon steel that is heat treated. The feed lip gap falls within a certain tolerance. If it changed either wider or narrower, the lips are going to move back towards their original positing anywhere from .002-.004″ so plan accordingly.
This is where experience matters with the mags you are working with. Once you have your dimensions figured out, you may find you need to bend further than the nominal dimension so when the sheet metal starts to relax it will stop in the range you want.
You may also find that the metal does most of its movement in some number of minutes after you do the initial tune and need to do it one more time. Some guys will wait overnight to do the final tuning. I wait at least 30 minutes.
What about left and right bends to the feed lips?
The more you bend the feed lips in one direction too much, the round will point that way and either glance the chamber wall or actually slam into the chamber and stop depending on how off you are. Try and get the cartridge to point into the center of the chamber in terms of left to right.
This is an 80% RIA frame that I used during prototyping. I’m not enough of a machinist to actually complete it but it really helps you see what is going on. If the right feed lip is bent too much to the right then the round will go in that directton – same for the left lip. You want to point the round into the center of chamber.
What about the follower?
It’s really interesting how important the follower is. On one hand it is pushing the rounds up againt the feed lips properly and on the other, there is a small “shelf” on the front left edge that pushes the slide stop lever up and locks the slide open on empty (unless you are using competition followers such as the Arredondos that purposefully do not lock the slide open).
The walls at the top of the 9mm mag really need to taper inward to properly channel the staggered round into the single exit position at the top. The follower’s sides need to be appropriately tapered and rounded as well less they drag on the walls. The original Mec-Gar followers have significant drag that you can feel when loading the mgazine so revising them made the most sense.
The Arredondo follower is on the left. It is more angled and rounded on the right side in this photo than the Mec-Gar on the right. The Arredondo was desined for competition is when you look at the bottom right edge of each you will see the Arredondo slopes down fast so it will not raise the slide stop lever. The Mec-Gar has a more elevated edge that will lock the slide open. Our modified Mec-Gar followers improve reliability by having more rounded edges but still can lock the slide open.
By the way, to make life more colorful, when you install the follower the spring tension will spread the feed lips wider by about 0.002-0.004″.
How about the spring?
The Mec-Gar springs are okay. How much spring is enough or to little really depends on how well it can keep constant upwards pressure on the follower to move the rounds up fast enough and keep them in position. With the drag on the follower reduced, the spring can do its job.
There is an exception though – if you add a magazine extension or base plate that adds capacity, the spring really ought to be longer so get a Wolff or Arredondo spring that can supply the pressure over a longer distance.
The top assembly has the a easy to identify blue Arredondo follower and longer spring. The spring is made by Wolff but is bent to properly hold the Arredondo follower. The black follower and shorter spring are the original Mec-Gar units.
Yes, springs can and do wear our so if you feel the follower is being pushed up sufficiently or is sluggish *and* the walls do not appear bent then you probably need a new spring.
What about lubricant?
Mec-Gar mags come with some lubricant all over the insides of the mags, follower, spring, floor plate and base plate. On one hand it protects against corrosion but on the other it can attract dirt.
I would recommend that you use a good dry lubricant film. I used to use Dupont’s Teflon dry lubricant film spray but they discontinued it over environmental and health concerns about Teflon. The company is now producing a dry film using a ceramic technology that I really like and find it does a remarkable job at lubricating magazines.
If you are in a marine environment and you need the corrosion protection the use the oil of your choice – you need to worry about rust, I get it. For me, the Dupont Dry Film Lube aerosol spray does a great job. The new followers and the inside of the magazine tubes coated with this enables remarkably smooth movement of the follower.
Number your magazines
A tip you really ought to consider is to number your magazines so you can keep track of them. I like stickers because you can readily remove them if you put a baseplate on a different magazine tube but there are plenty of guys who use a permanent marker or etcher to uniquely identify each magazine.
The benefit of doing this is that when you are at the range if you find that some magazine is having problems, you can write down or take a photo of the number and know what you need to work on. Face it, if you have a bunch of mags and they all look pretty similar it can be hard to keep track of them otherwise.
By numbering the magazines, I can track dimensions and performance over time.
We do sell the stickers if you are interested – click here.
I’m still learning
I don’t claim to know everything – let me right up front about that. I now know what people mean whey they say “The more I learn, the less I know”. In other words, as I learn more I am increasingly aware that there is a ton of stuff I don’t know.
Hopefully this gives you some insight about why one magazine will work great but then another one doesn’t. The above are things to consider.
My reason for writing this is to give you some idea of what we’ve learned and are building into each 9mm magazine that you buy from us – we aren’t just relabeling Mec-Gar mags and selling them at a heck of a mark up.
What are are doing is ensuring the dimesions, doing the necessary modifications and testing teach magazine in one of our 9mm RIA pistols to ensure you get a reliable mag. If you have problems with a magazine from us, we will definitely make it right.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
The question above is asked a lot and I can understand why – drill presses can make accurate holes. Surprisingly though – DO NOT USE A DRILL PRESS WITH YOUR POLYMER80 JIG! How’s that for an emphatic answer – now let me explain why this is so.
The cool jig that Polymer80 came up with is designed to be clamped from the bottom and three holes on each side to be hand drilled. All of the stresses and what not on the jig were planned so the holes would go in the right place. Laying the jig on its side to use a drill press has led to alignment problems and frames that don’t work so don’t use a drill press.
The jig is clamped standing up and a hand drill is used to make the holes. The smaller holes use a 3mm drill bit and the larger hole requires 4mm.
While we are talking about drilling – do a hole at a time and do NOT drill straight through. The reason you do a hole at a time is that you can afford the angle to be slightly wrong on one side but if you go straight through and the angle isn’t perfectly true then the hole on the other side will be way off. Trust me, do a hole at a time. Yes, do take your time and try to drill a hole that is perpendicular to the frame – meaning not at an angle one way or another off the center of where you need the hole.
Any 3/8 or 1/2″ hand drill will work just fine. A cool perk with the old Ryobi drills is that they have a level built into the tool holder.
Use 3 & 4mm Drill Bits
The frame needs 3 and 4mm drill bits and the jig is labeled for what size goes in what hole. If you need the bits, we sell nice drill bits that are perfect for this. Click here to go to our Polymer80 tool page.
I’d definitely recommend you use a vise to clamp the bottom of the jig. That’s what the jig was designed for.
So, you don’t need a drill press but I would recommend a vise to hold it vertically nice and steady. You can get pretty good deal on little 3-4″ removable vises that will work just fine or you can use any woodworking or metalworking vise if you already have one.
In Conclusion
No, you don’t need a drill press and for that matter you should not use a drill press because the jig was not designed for it. However, you do need at least a 3-4″ vise, hand drill and the right size bits to do a good job drilling. From there, you still need to trim your top tabs, remove the barrel block, clean things up and then you can install the parts of your choice.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
Folks, Scott Igert is a very good friend of mine and he and his wife own Michigan Gun Exchange in Saint Joseph, MI. Once in a while he gets in some amazingly rare/unique firearms that he and I get to look over and today was one of those times. In this particular case, he has this pistol into sell on consignment.
At a high level, it is a tap action pistol from a bygone era. tap action pistols had 2-4 barrels and the user rotated a lever to direct the spark from the primed pan into the selected barrel. This action was used in the 1700s to 1800s – I saw quite a date range of tap lock pistols when I was trying to figure out what Scott turned up.
Okay, the pistol was made by a London, England, gunsmith at “Anderson & Co”. I tried digging on that name and didn’t have any luck. I was told once that there were a lot of people making firearms in London during that era so perhaps he was a small shop.
What really caught my eye was extensive engraving on the metal surfaces, finely shaped checkered pistol grip and an amazing carved lion head on the pommel. This was not a hack job – a ton of hand work went into this. The grip feels great even today.
I’ve been digging for a couple of hours and can’t find any info on Anderson & Co or this pistol other than it being a tap action. I’ve not had a pistol intrigue me this much in a long time.
Scott and I are really interested to know more so if you have any info, please email me at info@roninsgrips.com.
Again, if you have any further details, we’d love to learn more. Email me at info@roninsgrips.com – we’ll share the results here of course.
Note, I have to buy all of my parts – nothing here was paid for by sponsors, etc. I do make a small amount if you click on an ad and buy something but that is it. You’re getting my real opinion on stuff.
If you find this post useful, please share the link on Facebook, with your friends, etc. Your support is much appreciated and if you have any feedback, please email me at info@roninsgrips.com. Please note that for links to other websites, I may be paid via an affiliate program such as Avantlink, Impact, Amazon and eBay.
Okay, Ronin’s Grips started making Yugo M70 grips sometime around 2004 and rapidly added models – the challenge was that I hand polished each and every one of them. It took a ton of time, handwork and was putting my carpal tunnel through the roof. Jeff Miller of HillBilly Firearms told me to abrasive blast the grips for a better grip and a heck of a lot less handwork. I was sold – I had to change something. Jeff also gave me a few tips – get a foot control to protect the seals vs. being in the cabinet with all of the grit, put transparency film on the window of the unit to make it last longer and he told me to get a “thumper” to make the grit settle.
Well, way back in the day margins were super thin so I bought a large bench top abrasive blast cabinet from Cyclone Manufacturing in Dowagiac, MI – they are about an hour from my shop and I could pick it up along with the foot control, I got a box of transparency film either from Amazon or a local office supply store, but I had no idea what a “thumper” was or how important it is to productivity.
Fast forward to about a month ago. Abrasive blasting used to take me a while – blast, hit the cabinet or manually move the material around in the hopper, blast some more, whack the cabinet or move the material around … it gets old. It took me years to realize that this really sucks but blasting was so much better than polishing that I didn’t think much about it.
So, a “thumper” is basically and industrial vibrator (insert joke here) that uses an electric motor in a housing with off center weights on the shaft that then vibrate like crazy when the motor runs. I guess you could call it the power of Amazon but one day I was scrolling through Amazon and a suggested item came up – a concrete vibrator – and it looked like a small motor in a housing. I had 25 Galil grips I was going to blast and all of a sudden I remembered Jeff’s advice.
Okay, the power of a vibrator with a blast cabinet is that the vibrations cause the grit to shake down to the lowest point constantly. You can blast and blast and blast. The unit was $118 with free delivery and I figured I would give it a try.
It shipped from the importer, not Amazon, and showed up a few days later – it was pretty quick as I recall. The unit was very well made other than my needing to tape up a plastic junction box on the power cord that was a little cracked and I needed to attach a 120 volt plug – it was one phase and they said about 40 watts so nothing special. The machine label says – 110V, 1 phase, 40 watts, 3600 RPM – the little thing totally kicks butt and was only $49.
Here’s a close up of the label – note it says 40 watts. There are bigger units but I don’t think you need them for an abrasive blaster.
I didn’t put it on the blaster right away because I wasn’t really sure how violent it would be and I am glad I didn’t – it vibrates like you would not believe – there is nothing subtle about it – and I immediately realized two things – 1) I was going to mount it on the free standing tool bench and not the plastic blast cabinet walls or it would eventually shake loose and 2) I needed a variable speed control to tone it down some.
Try #1
Okay, so sometimes you just have to poke fun at yourself – or at least I do. I marked the bolt holes on the 3/4″ plywood bench top and mounted the vibrator. I then plugged the power cord from the vibrator into the speed controller, the controller into a surge strip and turned it on at full speed.
I wish I had a before photo or a video of what happened next but I don’t. Every single thing on that table started vibrating right off of it. Yeah, all the grit went to the bottom on the blast table but the blast table was headed to the edge of the bench too. Whoa! I hit the off switch.
Try #2
I simply took some strips of plywood and added a cradle around the legs to limit travel. That worked. Time to try blasting some stuff.
Here’s the vibrator.
Here’s the speed controller.
Another view of the strips to limit travel. Everything on the floor had been on the workbench before I turned the vibrator on the first time 🙂 By the way, the 3/4″ plywood top is screws into the stands it is on.
Actually Blasting
Folks, it is night and day different – stunningly different. Because I don’t have to stop and whack the side of the baster or reach in and move grit around, I’d bet I’m getting work done 2-3 times faster. A bench top blaster doesn’t have a very deep bottom so without a thumper, I spent a lot of time moving grit over to the pick ,up.
Another fun lesson learned. Over the years, I’ve developed the habit of putting my chin on the plexiglass as I focused on doing the work. Don’t do that. I put my chin down on the vibrating plexiglass and it felt like someone was playing the tambourine with my teeth 🙂
Those are two IMI Galil grips getting blasted. What an amazing difference.
In Conclusion
This is one time I can honestly tell you that I have one regret – I should have done this years and years ago. Wow. It was worth it! I’ve used vibrator and speed controller both extensively for a little over a month and it’s a great combo. I don’t use the slowest speed but I am closer to the low end on the dial than I am the fastest speed.
Note, I got lucky with my first purchase. I really wasn’t sure what size to buy but the 40 watt unit has worked great. I can’t imagine anyone needing a bigger unit for a blast cabinet. These generic industrial vibrators have all kinds of uses including for the movement of powders, grains, rock, etc. so they sell bigger and more powerful ones as well.
I’d highly recommend this to anyone who has a ton of blasting to do and is getting tired of having to stop and manually move grit around.
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