Extruder Mounting Bracket - Makergear M2 3D Printer by Easybotics

Last crawled date: 3 years, 1 month ago

This is almost the same as the stock R3 (newest and best August 2015) version available from here:https://github.com/MakerGear/M2/tree/master/Printed%20Parts/STL
The stock one has beveled edges on the flat bed down side... Sometimes this is okay, but with PETG it will cause the small pointy parts to be more likely to detach from the printing platform.
All I did was remove this bevel so the bonding area to the bed is larger. Otherwise the design is the same as stock.
If printing with PETG I also recommend using a 2mm attached brim around the part to make sure it doesn't pull off the bed and warp while printing. I use 250C hotend, 50C bed and Buildtak for the bed top surface, works great!
The mount on my printer snapped right where the screw driver hole goes through the clamping arm, it was the much weaker R2 version., I'm guessing the R3 one was created to address this problem as it has no hole and a thick band around the middle section for extra strength. It looks like the stock part was printed with 20% infill too, I would recommend printing at 100% infill for a critical part like this.
Youtube video covering my various Makergear M2 Mods:https://youtu.be/jD6ZTcCd0j8
By - http://www.easybotics.com/
And - http://hilo90mhz.com/