Issue #11: Printable MP40, Casted Super Safety, Lever-Action AR, FOSSCAD Returns
FOSSCAD's back, and the innovations don't stop!
Welcome to the Guncad Digest! This newsletter will regularly round up the best and most interesting 3D2A releases, betas and news.
If you want the Guncad Digest delivered straight to your inbox, you can subscribe to this Substack.
You can also follow us on Twitter, Instagram, Facebook, or Reddit, where we’ll post notifications when a new issue of the Digest is live!
In today’s issue:
New Releases:
In this section, we cover new file releases that we find notable. If something catches your interest, go download and start printing!
SMP40: Printable MP40 Releases!
Black Lotus Coalition’s Stubbs returns to us with another incredible WW2 clone gun. Available now, it’s a printable version of the iconic German MP40!
Stubbs has outdone himself with this one. The receiver is an aluminum tube, with slots and holes cut via printed templates. The tube receiver is then sheathed in printed sleeves and furniture to achieve the famous MP40 look.

The SMP40 is functionally the most accurate MP40 clone yet produced, containing several features not available on commercial reproductions. These features include a folding stock, and even super safe functionality.
It’s also nearly half the price of its commercial counterpart!
Kits are available for the SMP40, to make a straightforward build experience even easier. You should also check out the build video!
Don’t struggle with the final solution in German SMG technology, build an MP40 in your living room today.
RXM Flat Pattern
Readers may recall Chairmanwon’s interest in the RXM platform, spinning up a project to bend flats to create a DIY version of this design.
Developer @Mashedleo is perhaps following similar inspiration by releasing a DXF of an RXM flat. I’m not sure if he’s working with the Chairman or working independently, but either way this should be a useful resource!
More TX22 Releases
The TX22 hype has died down a little, but it’s got a long tail, and there’s still several TX22 designs coming out worth noting!
Middleton Made has been busy, making both a magazine loader and a striker insert to reinforce the gun during FRT operation (remixed from Pembleton’s design).
Developer K3Design has also designed a printed 100 round drum mag for the TX22! He notes that it’s not guaranteed to work with an FRT, but if there was ever anything worth tuning to perfection, it’s surely a 100 round TX22 rip.
News:
In this section we’ll review major news events either originating in the 3D2A space, or particularly pertinent to this space.
FOSSCAD Returns, Now Available on Lemmy
It’s been a few weeks since Reddit banned /r/fosscad, and the way forward has mostly solidified. The former moderators of /r/fosscad have officially endorsed fosscad.io (aka the Guncad Index forum) as the successor to the /r/fosscad subreddit.
fosscad.io is built using Lemmy, a censorship-resistant, self-hosted federated forum software. Its user interface / experience is similar to Reddit, but with the distinct advantage of being hosted and controlled by the community itself.
This not only means that we can speak far more freely on Lemmy than we ever could on Reddit, but that we also don’t need to fear being arbitrarily banned!
The /r/3D2A subreddit will continue to operate as a public home for guncad discussion - may it last! I expect that most people will continue to enter guncad through /r/3D2A, as they did through /r/fosscad. Lemmy then provides those who want to dive deeper an inner sanctum of the community, for the community, by the community, never to perish from the internet.
FOSSCAD’s return it not simply metaphorical - thanks to the immense efforts of hogleg, GreySummitGear (@gsgmfg) and TheShittinator, backups of /r/fosscad were discovered and have been imported into the Lemmy forum!
Visit “The Ark” to check out the /r/fosscad backup. This consists of literal years of valuable information, now forever preserved. Hats off to you, gentlemen!
Community Corner:
In this section, we’ll focus especially on a particular community member. We’ll interview developers, review parts kits and help promote things I believe are deserving of your attention!
SCSSS Kit Now Available
Longtime readers may recall the SCSSS kit announced in Issue #2, advertised as a way to build a SS without buying or fabricating a metal cam. At the time this design’s quality was unclear, but several months of testing by Grey Summit Gear has proven that it works well enough to create a kit for it!
Why buy an SCSSS kit? It’s quite a bit cheaper than buying an SS cam, plus the vendor is also the person who helped lead the charge to recover and make available the FOSSCAD archive. That’s a person worth supporting, and I’m happy to promote it!
Updates:
In this section we will mention updates to major releases - fixes, new variants, etc.
Casted Super Safety - V2 Update + Video
In case you missed it back in Issue #2, we are rapidly bringing casting into guncad! This is real casting, not just a low-melt metal pour like the 3DP90’s bolt, and what better project to introduce it on than the Super Safety?
Developer RedneckInsurgency has recently released a Version 2 of his Super Swanky project, which improves the project in almost every way possible. He’s working with a better investment material, a better alloy, a better flask and even better kiln furniture.
What’s more, he’s created a video to demonstrate the process! This is well worth your attention. Casting a SS is cool - the fact that we are also getting a general set of guidelines for casting is even cooler. Fantastic work!
Modular Signaling System - Now With CAD Files!
The MSS Pack from VanillaKyleKyle is my favorite shell design for launching the signal. These designs have a plethora of variations and are built to be extremely flexible and user-friendly. They come in 37mm, 26.5mm and even 40mm versions.
As of recently, the megapack now also contains CAD files, so you can remix to your heart’s content! Got your own idea for some fancy payloads? Get to work!
New Betas:
In this section we round up recently opened betas. Help support development by joining these betas and testing!
“Trash Panda” Lever Action AR Enters Beta
I’ve been looking forward to this one for a while! Long teased, now finally in beta, it’s a lever-action AR-15 that you can build at home. What more do I need to say?
The beta is being run at the Gatalog. You can DM developer TheAvieAtrix on Reddit or Fosscad.io for access. Jump in and help test this extremely cool design!
CZ P07 / P09 Beta from DBFirearms
Do you have a parts kit for a CZ P07 or P09? DBFirearms needs your help! He’s got a beta open for a printable frame for this build and is looking for folks to help test it.
DM him on Reddit, Fosscad.io or any of the standard socials for access!
AR9 Mag w/ Integrated Ejector Enters Beta
Now here is a neat idea - this is a printable AR9 magazine, apparently designed for AR-15-sized magwells, with an integrated ejector. It’s got a 10 round capacity, with “funner” capacity coming soon.
Developer FUN CAD TIME notes that this is not yet tested. He’ll be testing it himself soon - anyone want to help?
Coming Soon:
This section lists announcements or previews for projects that have not yet hit open beta. Keep an eye out for further news about these projects!
ORCBOLG - Fully DIY .380ACP Pistol
We’ve had fully DIY .22LR pistols like the SY22 or NULL-22 for a while now - developer SgtButters1984 is advancing that conversation with the ORCBOLG, a fully DIY pistol chambered in .380ACP!
He notes that this will use similar techniques to those required by the SY22, - basic metalworking like cutting and drilling, JB welding. He also notes that he’s using an ECM .380 barrel.
It looks like this will enter beta at Black Lotus, so keep an eye on that!
RoboCopout Auto-9 Updates
Developer Dude_I_got_a_DWAVE (what a name) shares some sexy pics of his functioning “RoboCopout Auto-9”. This is a “prop” that attaches to a standard Beretta 92FS (and perhaps a printed one?) to visually recreate the Auto-9 from Robocop.
Commentary on the design makes it clear that this design is meant to be functional, and DWAVE even describes his intent to pair it with an FRT. Make sure to shoot this build single-handed at an indoor range.
Printable RXM 80% Jig
Continuing on the RXM news, developer UFO_AEROSPACE is working on a printed 80% jig for the RXM. Screenshots make it clear that this is meant for prebent flats, and is used to help facilitate drilling.
Looking forward to seeing this release once tested!
Other Links:
This section will collect any other links I find interesting. These may be older designs I want to share, releases I find notable but don’t have much commentary on, or anything else that catches my eye.
Gatalog continues their tradition of releasing a pistol frame for every model under the sun with the Phalanx 45, a printable frame for the M&P Shield 45! Go grab a parts kit from Gunbroker and get building.
In a similar vein, Unseenkiller has followed his MGRS 19 with a Glock 17 version, the MGRS 17. Will he pull off the hat trick with the 26? Probably!
Howdy partner, did you print your Modelo Polylactico yet? How about a printable insert to create a .43R ammo bag from an SKS clip pouch?
Now that the Lima Six uppers are out, Unseenkiller did the only logical thing and created a chainsaw grip to go with it.
About the Guncad Digest:
Thank you for reading this issue of the Guncad Digest! Please send us your feedback and suggestions for improvements on the issue.
The Guncad Digest is sourced using the very excellent Guncad Index, from /r/3D2A, and from readers like you. If you know of a project you think should be featured, send it our way!
This issue was compiled and authored by Alyosha from 3D Print Freedom / 3D2A. We sell high quality parts kits for some of the best DIY guns available - if you’re looking for your next gun build, come check us out!
















