hoffmantactical

Advanced CAD design of firearms parts with Chairmanwon.

Not only is Evan Jones printing guns and developing a DIY flywheel delayed blowback rifle, he's also building an airplane in his backyard. This stream should be interesting!

I use a simple masking technique and some spray paint to give my Orca a two tone color scheme.

#shorts

After much development, my most important design yet has been released!

#shorts

After firing around 500 rounds through my latest Orca, I discovered that the front clips had broken. We will look at this in full detail in this video.

The Orca has been released. After nine months of development the Orca 3D Printed AR-15 has arrived.

The Orca has been released. After nine months of development the Orca 3D Printed AR-15 has arrived.

Fun with Orca 3D Printed AR-15 #shorts

This video will take the Orca from parts to complete rifle. All of the assembly steps are covered.

I fire over 425 rounds of ammo to test an older version of the Orca 3D printed AR-15.

The Sovol SV04 is an IDEX printer that can be had for less then $500. This makes it an interesting option for multi-material printing. In this review, I'll share my thoughts after using it for several months. The Printer : https://sovol3d.com/products/sv04 A couple other reviews for more prospective: @3DPrintGeneral https://youtu.be/7ae-cjJ2tDc @LostInTech3D https://youtu.be/XZLsALPx6AM

Steve Boggan of the The Daily Mail UK wrote an article on 3D printed guns. I read through it, and recorded my thoughts. Should be fun!

PA12 is an interesting plastic, because it absorbs a lot less water then other Nylons. It should maintain it's strength and stiffness even in a humid environment.

Infill modifiers, or infill masks as I like to call them, change the type and density of the infill on your printed parts. This allows you to use 100% infill where needed, while saving weight elsewhere. I'll show you how to do this in Prusa Slicer and Ultimaker Cura.

Here is a brief description of how my printed AR upper and lower fit together and work.

The Upper on the rifle is also printed.

I 3D Printed a fully functional AR-15 rifle, including the upper receiver, lower receiver, handguard, buffer tube and more!

I conducted a short study on how annealing, moisture and oil effect the strength and stiffness of the Taulman Glass Fiber Nylon.

Myself and several other YouTube creators have had videos removed by YouTube. Here is the article referenced in the video: https://www.everytown.org/how-youtube-can-combat-armed-extremism-on-its-platform/

I bought an Ender 3 a few months back and have started to use use it. Here are my first impressions, from the perspective of someone who has used nothing but Prusa printers.

I use custom designed built in support on all of my lower designs. In this video I'll go over some of the basic techniques I use to design this support. 00:00 Intro 03:48 Basic Support Design 05:10 Controlled Bridging 09:30 Support Stubbs 12:55 Support Structure 13:47 Line Width 15:28 Detailed Support Structure 20:00 Overhang Design 24:30 Glock Support 27:00 Exit

Most Nylon Filaments suffer from Creep. This can cause pins to shift and screws to loosen, in this video I share some testing I did to see if annealing Nylon fixed this issue. I tested Taulman Glass Fiber Nylon as well as the Overture Easy Nylon.

I get a lot of questions about what filaments I use. Lets talk about the specific types and brands I recommend.