I ordered a replacement off pololu. It's got fewer steps and is slightly longer but should work. Probably a lot cheaper than shipping from your county. I should get it in a couple days and will let
You know how it works.
Reza
problem with z-homing & limit switches
-
RinusDamen
- Posts: 32
- Joined: Sun Apr 05, 2015 5:51 pm
Re: problem with z-homing & limit switches
First power up: my A-axis motor becomes super hot, cannot touch it and it smells bad. luckily it did and still does work, I was testing movements when noticed the burning smell, quickly turned everything off and waited for 30 minutes to give the A-motor time to cool off.
After power up it became really hot again, even without moving it. A-motor coils measure 10.5 Ohm each (compared to Z-axis: 2.4 Ohm).
Consulting the forum teached me to lower down power on the Tiny-G.
Turned the potentiometer counter clock wise, test A-axis didn't work anymore, after setting it to +/- 30% clockwise it was oke again, and doesn't become hot.
Is this normal behavior? and what is the recommended setting for all motors?
Edit: Juha already shared his settings on the forum, they work fine! I think it's better to put this information in the manual, preventing possible hardware damage to builders motors or even worse...
After power up it became really hot again, even without moving it. A-motor coils measure 10.5 Ohm each (compared to Z-axis: 2.4 Ohm).
Consulting the forum teached me to lower down power on the Tiny-G.
Turned the potentiometer counter clock wise, test A-axis didn't work anymore, after setting it to +/- 30% clockwise it was oke again, and doesn't become hot.
Is this normal behavior? and what is the recommended setting for all motors?
Edit: Juha already shared his settings on the forum, they work fine! I think it's better to put this information in the manual, preventing possible hardware damage to builders motors or even worse...
Re: problem with z-homing & limit switches
> A-motor coils measure 10.5 Ohm each (compared to Z-axis: 2.4 Ohm).
As they should. For reference, the A motor is this: http://www.omc-stepperonline.com/09-nem ... -p-85.html, the X and Y motors are http://www.omc-stepperonline.com/09deg- ... p-122.html, and the Z motor is: http://www.robotdigg.com/product/100/15 ... pper-Motor.
> Edit: Juha already shared his settings on the forum, they work fine! I think it's better to put this information in the manual, preventing possible hardware damage to builders motors or even worse...
Yes, you are right, I must put them to the main site as well, also the above links. Tomorrow, no I need some sleep.
As they should. For reference, the A motor is this: http://www.omc-stepperonline.com/09-nem ... -p-85.html, the X and Y motors are http://www.omc-stepperonline.com/09deg- ... p-122.html, and the Z motor is: http://www.robotdigg.com/product/100/15 ... pper-Motor.
> Edit: Juha already shared his settings on the forum, they work fine! I think it's better to put this information in the manual, preventing possible hardware damage to builders motors or even worse...
Yes, you are right, I must put them to the main site as well, also the above links. Tomorrow, no I need some sleep.