Rostock Extruder Maximus

pinshape

I was having problems with the stock EZ Struder. I looked at various designs, ideas, etc. online. When the pile of Ninjaflex started laughing at me, I decided it was time to take on the challenge to design one myself. After several weeks and nearly an entire roll of plastic, I've made some changes that I'm happy to share with the community! UPDATE 2016-06-02 - Version 7 Since I published this, many people have reported that the hob gear has increased in diameter. So, I've made some changes to the v7 Extruder Maximus: Increased the hole diameter of the hob gear to accommodate a 12.4mm hob gear. Note: This will still work for smaller gears. Carried the arm restraint all the way around on top for additional support on the tensioner arm and spring. Increased the diameter of the top to allow the manual knob to rest against the hob gear. Decreased the diameter of the screw holes for a tighter fit. Recessed the mounting screws. Added built-in support for the spring nub. Tweaked the pinch-point and removed the built-in support (really wasn't needed). Used all high definition cylinders in the 3D model and separated the pieces into individual STLs. Print Settings: I used 0.20mm resolution at 80% infill with Taulman 910 (HE: 240F; BED: 50F; Hairspray @ 30mm/s). I used Simplify3D to generate support at 3mm from the bed only. V5 Makes: If you want to go with v7 and are happy with the performance of v5, the top is backwards compatible and will fit the v5 bottom. Installation: No additional hardware is required. I designed the piece to use all existing components (including screws) from the stock EZ Struder. Remove the built-in support on the spring nub with a razor. Depending on the quality of print, I would run a 5/64 drill bit down the feed tube to smooth out any imperfections. Click here for more information and visuals.