The100 Hot and Spicy Motors
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Spaces the motors out of the frame to help with heat dissipation.
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I wanted to make sure my motors did not get too hot in my frame. Decided against doing forced air. After talking with some members on the Discord we figured we might be able to fit everything without re-designing the back frame.
I printed everything in PLA for testing, but it is intended that it is printed in ABS/ASA to handle the motor heat.
lower sections needs:
- 8x M3 heat set inserts (same from BOM)
- 4x F695 bearings (same from BOM)
- 2x 20T Pulley (you probably have this already on your motor)
Upper section needs:
- 8x M3x10mm bolts for motor
- 8x M3x16mm bolts to join top to bottom (for V1)
OR - 8x M3x40mm bolts to join top to bottom (for v2)
- 2x 5x5mm couplers (https://www.aliexpress.com/item/1005005703606247.html?spm=a2g0o.order_list.order_list_main.236.6e671802JNuqEk)
- 2x 5mm rod cut to length (https://www.aliexpress.com/item/1005003594895025.html?spm=a2g0o.order_list.order_list_main.216.6e671802JNuqEk)
To cut the rod to length, I had assembled the unit as in the photo with a 7mm gap(how thick the frame is for the motor mount). Marked the rod at the bearing, then took it back out and cut to size.
Just know, The 5mm rod is 5mm OD, and the F695 bearings are 5mm ID, you will have to sand down the rod with sandpaper to fit… it is not fun. I did this in a power drill just like the ZeroG Mercury One build instructions says to do it.
Assembly instructions:
- Put the motor on the upper part
- Get the coupler positioned
- Attach the cut and sanded rod
- Tighten all grub screws.
- Put the bearings in the lower section
- Set the pulley in place (right side has belt up, left is belt down)
- Set the lower part in place.
- Make sure the pulley is lined up.
- Insert the top assembly, sliding the rod into the pully.
- Tighten down the 8 screws that go into the heat set inserts
- Tighten the grub screws on the pulley.
If you print V1 uppers, you will need a very long hex key. like… a not normal length.
If you print V2 uppers, you should be able to get away with a more normal hex key (untested)