Hi o_lampe, thanks for your answer. I have the CRAMPS version 2.2.1 and I think that the servo outputs has been removed. I measure the current with a multimeter and I never measure more than 1A/48V. In order to measure the current I connected the multimeter on serial with the Spindle and in parallel for the voltage. Also I read in some other place that old 3040 Chinese CNC came with a 50w Spindlby lordrafa - Controllers
Hello everyone, I would like to modify my CRAMPS (Beaglebone Ramps) to add support for a 50W Spindle (48V/1A) on the high power bed output (24v/15A). Checking the below schema I suppose that I would need to modify the MOSFET and the schottky diode but don't have enough electronic knowledge to pick the correct values. Also I am not completely sure if after this modification is done if I would beby lordrafa - Controllers
Quoteo_lampe 2A is a tall order for Pololu style drivers. My best bet is the RAPS128NG or other drivers with the LV8728MR chip. It can handle up to 2.2A and is surprisingly quiet. There is a second "decay" potmeter to adjust it to unusual steppers, but I never touched it. Thanks for your comments o_lampe, I will check more info about this controllers, I started to worried that I would need to biby lordrafa - Controllers
Hello, I have the typical Chinese CNC 3040 that you can find in ebay. This CNCs comes with a massive controller that need to be connected to a massive old computer with parallel port, that is why after some time missing how my desktop use to look before I bring my CNC I have decided to replace all the digital components by a beagle bone black plus the CRAMPS cap. This cap requires several Pololby lordrafa - Controllers