Author Topic: FrankenCube v0.1 Its ALIVE!!!  (Read 4925 times)

Dan

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Re: FrankenCube v0.1 Its ALIVE!!!
« on: December 07, 2014, 04:12:51 am »
You dont *have* to change the electronics to OS to make the motors quieter, but you DO need to strap a fan on the back of each of the stepper drivers and reduce the current by turning the 3 pots on the main board about 1/4 turn anticlockwise.  Still there are a billion other reasons to do so - print quality would be the biggest for me. 

I figured out the reason the steppers are so noisy is because they are WAY overdriven.  The current I ended up with was about half of the original.  A rough way to measure this is to use a Multimeter - place one pole on a common earth (Black wire from power supply) and the other in the center of the pot you are testing.  A typical value should be between .1 - 2.5v (if the stepper allows).   With the A4988 drivers im currently using, I have mine set to about .2v for each Axis and .95 for the extruder.  THese figures would not be achievable without cooling on each of the Stepper Motors AND the electronics themselves.  I have a fan (cable tied of course) right over the stepper drivers. This printer is now one of the quietest i've heard.

« Last Edit: December 07, 2014, 04:51:07 am by Dan »