PRS Talk Best 3D Printed "stuff" you've tried?

I’ve also started dipping my toes in it.

Thinking about printing a forend for a foldable chassis I’m purchasing.

I’ve made dummy rounds but I’ve seen people make a whole case feeder for reloading and a $12 motor from Amazon.

You can make a lot of chassis for .22 apparently but I’m going to try and 3d print a grain trickler. Only a matter of time before I can print a whole press.
 
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Something I've designed (in Fusion 360) and use most frequently is an extended funnel that directs powder cleanly into the pan. It sits nicely at the top of my fx120 and drops down far enough to prevent spillage. Since I don’t use an AutoTrickler, this modification significantly streamlines my workflow with a manual trickler.
 
I've printed all kinds of stuff. Here's just the stuff I've designed.
Caliper Stand
Caliper Stand.jpg
Empty Chamber Indicator
ECI.jpg
SG Pulse Mount
SG Pulse MLOK Mount.jpg
Thumb Shelf
Thumb Shelf.jpg
Chassis Weights
Screenshot 2025-06-23 134207.jpg
Dope Card Holder
Screenshot 2025-06-23 134513.jpg
Mag Pouch (missing bungee in the model)
Screenshot 2025-06-23 134245.jpg
Magnetic Spotting Scope Adapter
Screenshot 2025-06-23 134607.jpg
Barricade Stop
Barricade Stop.jpg
 
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Weight molds for KRG Bravo. Molds are filled with lead shot and epoxy resin. But they are removable versus folks previously just pouring shot and resin into the buttstock. Holders for BoreTech cleaning rod and borescope. Funnel for pouring powder back into the jug from the Chargemaster. Jig for marking brass with sharpie. Barricade stop for KRG Bravo. Mag block. AICS mag loading tool. Battery containers.
 
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While waiting for MDT to release the productized version of Francis Colon's thumb rest, designed/printed one for myself for M-LOK chassis, and for things like the Foundation Samson. Got a couple friends running them, too. Will eventually buy MDT's when they get around to releasing them (to support the guy with the original idea), but until they, they work great. Printed them in PLA and in PETG - haven't ventured into more temp sensitive materials, yet, cause I don't have an enclosure at this point.