Our pal Sebastian Unger (aka homegunsmithunger), inventor of the revolutionary “Topside Takedown 10/22 Receiver” has been operating tough to obtain a manufacturing companion for his exclusive twist on a classic firearm design and style. In the middle of his prototyping phase, he has developed a thing equally exclusive: a 3D Printed Receiver for Ruger 10/22 style rimfire rifles.
Unger’s polymer 10/22 receiver is totally functional, cycling .22LR rounds reliably. Nevertheless, there are a handful of caveats for interested builders, the primary 1 getting that his project is each experimental and risky. As for the rest of the information, I’ll leave you with Unger’s personal words on his most current project.
I continue to be impressed with his revolutionary mindset.
Revolutionary Rimfire: 3D Printed Receiver For Ruger 10/22 Style Rifles
I have discovered 3d design and style a handful of weeks ago for the topside takedown project to get the CNC prototypes completed, consequently it was only a incredibly smaller step to acquire a 3d printer and print a receiver for the Ruger 10/22.
The primary explanation for this test was my interest in seeing the accurate possible affordable 3d printed receivers, with the easiest printable material -> PLA. PLAs tensile strength is not so undesirable, but the influence resistance is low and temperatures above 60-70°C make it soft, so I have anticipated the receiver to fail early ahead of I have tested it.
Surprisingly the receiver held up nicely, extra than that, accuracy and precision was on a par with the metal receivers. I have printed the barrel bore a small bit smaller sized, heated up the barrel and pushed it by hand into the bore, so the bore had specifically the dimension of the barrel and the match was ridiculous tight. I was incredibly pleased with the outcome, for the reason that it was completed with work, and it is for positive the primary explanation why this rifle shoots so nicely.
Reliability was not as very good as with the metal receivers (five FTF exactly where I just had to push the bolt forward, throughout 500 rounds devoid of cleaning, four of them at the finish of the test). It could be enhanced by growing the bolt play inside the receiver, but even the existing outcome ought to be OK.
Longevity was satisfying, no functional complications for 500 rounds and just a smaller layer seperation in the magazine region, that can be quickly fixed. If I would have added a radius in the corner exactly where it happend, it would possibly not have been occured.
I want to mention a handful of points I did to give the receiver a greater opportunity to so survive:
– applying an elastic buffer pin
– only applying Topshot/CCI 40gr. normal ammo
– applying a stock exactly where the back finish of the receiver is supported by the stock
– the barrel was not absolutely free floating, a absolutely free floating barrel would could have widened the barrel bore in the receiver as quickly as it got hot
The greatest disadvantage of the receiver is for positive the lack of heat resistance for the reason that of the PLA, but with smaller improvements even very affordable printers are capable of printing Polycarbonate, which is extra heat resistant.
So general I am incredibly pleased with the test, for the reason that it has verified, that adequate receivers for semiautomatic .22 lr firearms are printable with very affordable 3d printers. The material and power expenses for this receiver are around five Usd, it required 135 gram PLA and took almost 24 hours to print it.
Even with carbon fiber reinforced supplies the print would not expense extra then 15 Usd, and these receivers would come incredibly close to the metal receivers in all points, so the overall performance in relation to the value is incredible in my opinion.
Alltough it worked out nicely for me, I have to point out that all of this is 100% experimental and risky, smaller adjustments (print settings, buffer, ammo….) or errors can bring about undesirable injuries with these points, so I would not advocate to anybody undertaking this at dwelling. This is 1 of the causes why I will not upload the files. Laws are altering all the time also, so there is also a threat that uploading these points gets illegal some day.