I am designing a brush mechanism. It requires two step motors to operate in sequence with each other. They are both connected to belt driven linear actuator, link (http://ooznest.co.uk/3D-Printer-CNC-Kit ... tuator-Kit) this is the x-axis.
The stepper motor used is the NEMA17 2.00A.
And this the y-axis, link (http://ooznest.co.uk/3D-Printer-CNC-Kit ... tuator-Kit). The motor used is the NEMA17 1.40A.
The brush goes along the axis stops, the y-axis raises it, the brush returns to the start of the x-axis then the y-axis lowers it again. To provide mono directional brushing.
I am running both motors using l293D IC chips wired like this link, (https://learn.adafruit.com/adafruits-ra ... s/overview). Each motor has its own l293D chip.
There is an external power supply unit attached, link (http://ooznest.co.uk/3D-Printer-Electro ... wer-Supply)
The motors are struggling a bit. The x-axis motor is going a bit slower than I would like, decreasing step size causes belt slippage and vibration.
The y-axis motor is incapable of raising the gantry plate vertically, can do downwards direction. Can travel both directions when held horizontal, so suggests lack of pulling power.
Is it that the l293D chips cant operate such high amp motors?
Thanks for any and all advice.
I also used the code on this site, modified to give both motors unique variables, link (https://learn.adafruit.com/adafruits-ra ... s/overview)
https://www.flickr.com/photos/134499184 ... 7572162741
Sorry new to asking for help so don't know what photos to take