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HollowCNC - MPCNC
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Hollow CNC - Mostly Printed CNC inspired by Dremel CNC. It was an attempt to improve rigidity.
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Hollow CNC - Mostly Printed CNC inspired by Dremel CNC
It was an attempt to improve rigidity for Dremel CNC by doing following:
- adding additional 12mm rods to Y axis,
- moving spindle as close to X axis as possible to reduce lever arm,
- making orifices in parts (therefore "hollow" :) ) to increase number of walls in 3d printed parts and make them more rigid.
Rough list of hardware used:
- 12mm steel rods with linear bearings for Y axis,
- 12mm steel rods with linear bearings for X axis,
- 12mm and 8mm steel rods with linear bearings for Z axis,
- 4xT8 rods with rigid motor couplers,
- 4 NEMA17 stepper motors,
- 3 microswitches as endstops,
- Arduino with CNC Shield to control the motion,
- ATX power supply to power controller and stepper motors,
- spindle controlled by external power supply,
- acrylic or other sheet to keep dust/chips from Y rods,
- various M3, M5 bolts mostly screwed directly into plastic parts.
Link to original onshape CAD: https://cad.onshape.com/documents/bf087bdec7e0d50a507f42bc/w/daa4ae264e70c2a48bce51c3/e/1064b9511851698094a25c1c