Contained are STEP files for 9x19mm, 10mm, and .357SIG, and their respective chamber negatives. I've seen a lot of snapcaps around, but their accuracy is dubious, and I never see chamber negatives to go with them. I built these off of the drawings contained in SAAMI Z299.3 – 2022 for the purposes of integration into CAD projects to predict tolerances and fitment. The chamber negatives are accurate, and so are the casings for the ammunition. The only thing that I took creative license on were the projectiles for the ammunition (as those can vary widely and are not specified), but I tried to best match conventional shapes, like 9x19mm 115gr FMJ. It is also worth noting that the ammunition data does not contain internal dimensions, only external. Internal spec for ammunition varies widely between manufacturers and is rarely indicated in public documentation. It also does not contain primer data for similar reasons, though I'd like to one day include it. The chamber negatives are used for headspacing. To use integrate them into your model, seat the base of the negative (the wide end) onto your boltface or breech, and center it with your barrel. Of course, headspacing is a fine art, so it may take some iteration to get things right. I suggest treading on the side of caution, rather than assuming your headspacing is correct on the first go. Feel free to message me if you have any questions.

The SpringFactory from HW Enterprises revisits a concept which has not seen development since early 2020 - the home manufacture of magazine springs. This printable tooling allows you to bend piano wire into rectangular springs using a single moving rotary part. The factory can be easily adjusted for different coil dimensions. The coil rise is determined by installing a printed slope which can be swapped out to change the rise. The parts included in the data package are designed for a specific diameter wire (1.3mm) but even this can be customized by modifying the included STEP files. Documentation is included to explain how to print, assemble, calibrate and use the factory. This  project is the first of several planned iterations in spring bending technology, and was motivated to help reduce the community’s reliance on commercial spring designs and the limitations this places on magazine development. Home builders can now design magazines with spring dimensions totally different from what is available commercially!

====== PP Virtual Build Kit ====== These files contain dies that will help transform your demented ideas into fully functioning 3d printable firearms. Cut the die from the shape of your choice and voila! You've got a new Glock. Dies for the following are included: G43X/48 - DD43.1 rails G43X/48 - SS80 rails G19, G19X - DD19.2 rails G17 - DD17.2 rails G26, G26X - DD26.2 rails For the G17/19/26 designs, both left and right handed versions are included, as well as versions for both gen3 and gen5 slide lock springs. Also included: Modified G43X magazine release. I highly recommend using this if you plan to run Shield S15 magazines. Left handed G19 mag release. This is required for left handed G19 frames since left handed gen 3 Glocks don't really exist. Right handed G19 mag release. Included for completeness, but also handy if you want to customize how far the mag release sticks out.