I’m interested in building a Maslow machine but living in Europe I feel that the cost of shipping some of the proprietary parts is going to be a bit prohibitive. I think I can probably build something very similar using all the info available on Github, however the motors are a bit of a sticking point, and i have some questions. I have spent a little while searching the forum and have not been able to find the answers, so apologies if these have been answered somewhere else:
Is it 100% necessary to use the specific worm gear motors sold in the online shop? My thinking is that there are some very similar gear motors available from various places (amazon, ebay) which would be much less expensive and quicker for me to get hold of. However they do have slightly different torque/rpm/gear ratios and so on.
For example there are 12v worm gear motors available on eBay at the moment with hall sensor quadrature shaft encoders that have a rated speed of 10 rpm (I know this is slower than the 20 rpm of the specified motors), with a rated torque of 22.5kg.cm which isn’t too far off either (I assume counterweighting or lightening the sled could offset this).
My question is:- can the firmware/software be configured to work with these other motors given that the pulses per revolution and speed of the motor could be quite different from the ones generally used? Is there an upper limit to the pulses per revolution that the arduino can handle?
I appreciate that the slower rpm will mean longer job completion times, but that doesn’t really bother me that much.