Tagged: pulleys belt
April 14, 2019 at 5:57 am #96971
Im making the BraunsCNC modified MPCNC that calls for a double belt (15mm width).
I bought this 15mm width belt with pulleys:
, but I just realized the pulleys are 6.35mm bore and my motor shaft are 5mm.
Im assuming is not good idea to use those pulleys, because of the wobbling.
These 15mm width pulleys are hard to find (at least in the US), the kit I bought is 24 teeth, thats what was available and I didnt know the number of teeth could affect the machine.
1- No good idea to install these 6.35mm bore pulleys on the 5mm shaft, right?
2- What are my options regarding pulleys? can I get them with less/more teeth? what should I consider? less is better or more is better?
3- Can I put a 15mm belt on a 17mm pulley if I find them on that width? (I dont know is the extra width on the pulley will affect the operation)
Thanks a lot.April 14, 2019 at 8:51 am #96975
I cant think of a good way to use those pulleys on those motors. I dont think a printed adapter would work very well.
More teeth means more speed but proportionally less maximum load before you start to get missed steps. If you are going for a stiffer overall system, more teeth will work against you, but a small increase, say 16 to 20 would probably not make a difference. Just dont go crazy.
I can’t see why a narrower belt on a slightly wider pulley would be a problem.
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