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CarlosGS / Cyclone-PCB-Factory

Cyclone (Circuit Cloner) is a parametric CNC mill design intended for PCB manufacturing.
https://reprap.org/wiki/Cyclone_PCB_Factory
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Question about gears #52

Closed czapeczek closed 8 years ago

czapeczek commented 8 years ago

Hi.

I just wanted to know (sorry if it's written somewhere - wasn't into docs really yet, I am trying to understand what I see here first) why the motors are connected to their axes with gears and not directly?

Hope I'll hear an answer :)

Filip

Alexthefox commented 8 years ago

Hi, I have print the same of original project. The reason is for torque of the motor. But somebody did it with direct drive, motor connect to threaded bar. Of course if change ratio of motor, need to'd change in firmware.

Alessandro

Inviato da BlueMail

Il giorno 26 gen 2016 19:42, alle ore 19:42, czapeczek notifications@github.com ha scritto:

Hi.

I just wanted to know (sorry if it's written somewhere - wasn't into docs really yet, I am trying to understand what I see here first) why the motors are connected to their axes with gears and not directly?

Hope I'll hear an answer :)

Filip

Reply to this email directly or view it on GitHub: https://github.com/CarlosGS/Cyclone-PCB-Factory/issues/52

czapeczek commented 8 years ago

Okay, I assume, that by mounting a direct drive - the accuracy will be a lot better.

CarlosGS commented 8 years ago

Gears were kept in place in order to reduce the size of the machine Bear in mind that any backlash in the gears will be fed through the threaded rod, which is a very large reduction. You can actually have lots of backlash in the gear mechanism before it has any noticeable effect in quality

On the other hand, a word of advice. Threaded rods are usually not calibrated, which means they are not nearly as accurate as a proper industrial-grade leadscrew. If you are implementing direct drive for the sake of quality, I'd tell you to also replace the threaded rods for leadscrews

Also, please join us in the mail list: https://groups.google.com/group/cyclone-pcb-factory

Cheers, Carlos

czapeczek commented 8 years ago

Am joining right now :) Thanks! The first thing I was thinking of was to changer the throds to ldscrews