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How One Bad Filament Destroyed My Project (RMRRF 2026)

Zack Freedman 33:49

99,342 views · 5,215 likes Watch on YouTube ↗

Sponsored by the Sunlu FilaDryer E2! urlkub.co/HpkiGL
PEKK-A printed by @VisionMiner! https://visionminer.com/pages/printservice

Today’s horoscope: If your scythe goes flaccid, stay away from Vikings.

Special thanks to:
- @3DMusketeers Grant and Amber
- @hedgehogmakes
- @TheEdgeofTech
- @TheRealSamPrentice
- Dave Wheeler (event photographer)
- Brooke Jones
- Megan Jones

Support future projects! https://patreon.com/zackfreedman
Join my completely normal Discord! https://discord.gg/voidstarlab

The Grid Reaper saga continues with the first day of epic battle at RMRRF 2026! This Death Racer was printed from 20 esoteric filaments, and because you’re a cool cat who reads descriptions, you get to see them!

1) Chassis core: PEKK-A for super-strength
2) Chassis front: GF-PEKK for superer-strength
3) Chassis rear: PEI 9085 because it’s cool
4) Seat: GF-PCTG for ultimate spiffiness (it’s so spiffy)
5) Cape/Head/Scythe: Rebound Air (foamed PEBA) for low mass and high squish
6) Wheel: PEI 1010 cuz it’s on your spring-steel print plates
7) Battery box: PPSU for fire mitigation
8) Rims: GF-core PPA for axial strength
9) Roller cores: Igus Iglidur for low friction
10) Rollers: SEBS for traction
11) Livery black: Atomic Jet Black, the blackest black filament
12) Livery red: Hedgehog Red for friend chips
13) Livery white: Addnorth Textura, literally paper-white
14) Livery green: Inland silk, same as Co-Lab-Orator nameplates
15) Fenders: PEBA for shock absorption
16) Gears: 3DXTech WearX PA for wear resistance
17) Voltmeter filter on dashboard: Amber PLA for its specific tint
18) Reaper’s noodle arm joints: Recreus Filaflex 60A Pro for flexibility
19) Original scythe: GF-PA for steel-gray color
20) Gridfinity plate: Pre-production sample of Fishy Filament Porthcurno, personally sent by the late E3D founder Sanjay Mortimer

===Chapters===
00:00 What have I done
03:38 Prototype to real deal
08:24 Protopasta vs Polymaker
13:06 Round One
17:19 Round Two
21:26 Round Three
28:28 EVERYTHING IS TERRIBLE!

===CREDITS===
Footage provided by Vision Miner, The Edge of Tech, Hedgehog Makes, and 3D Musketeers!
Interference SFX: Partners in Rhyme
“The Next Level with the Death Racers” by The Build Platform at 3DPrintopia - www.youtube.com/watch?v=jdgr27tYf7A
“SYMPOSIUM - PANEL 2 - Zack Freedman at NODE15” by NODE Forum for Digital Arts -
https://vimeo.com/127250619?fl=pl&fe=vl (I can’t believe someone saved it!)

Playback is via YouTube's official embedded player. Data from YouTube; Exumo is not affiliated with YouTube.