101hero NEMA17 Upgrade (401sidekick)

thingiverse

I am still working on the RAMPS 1.4 config file with Marlin 1.1.0. Currently, my printer moves around and extrudes slowly, but it's not print-worthy yet. I'm testing parts to upgrade my 101hero from its gear reduction steppers to actual NEMA17 steppers, with a Bowden extruder. I'm calling this modification the 401sidekick. You will need to print three times the NEMA mounts and one time the Bowden extruders. The current parts were printed on a Prusa i3 Mk2 clone, but as long as the 101hero is in working condition, I see no reason it cannot be printed on it. Parts to keep from the original 101hero include six M4 screws, three GT2 16T timing belt pulleys with 5mm bore, and three black plastic mounts from old steppers. Parts needed not included from the original 101hero are one M3x30 screw (or M3x32 with washers or similar to shim), twelve M3x25 screws, one M3x20 screw, two M3x8 screws, two M3x6 screws, nineteen M3 washers, fifteen M3 nuts, one 608 bearing, one spring, one MK7 hobbled gear (5mm shaft), four NEMA 17 steppers, one new controller board, one brass PTFE push coupler, and one PTFE tubing for 1.75mm filament. Patience! The electronics I'm using are three NEMA 17 pancake steppers from eBay, one NEMA 17 (full) stepper, four crimp plugs and connectors for stepper wiring, one RAMPS 1.4 with A4988 stepper drivers, one full graphic LCD screen with RAMPS connector, and one stock 101hero extruder. Printer settings include: - Printer: Prusa i3 MK2 custom - Rafts: No - Supports: No - Resolution: 0.2mm - Infill: 20% Notes: The NEMA mounts print with built-in support for the M4 holes, which should pop out with little work. The NEMA mounts have space for the M3 nuts; if these are too tight, warm up the nut and press fit in.