Hi,
I wired my RAMPS 1.4 this morning and there is something amiss. But I cannot figure it out. What I have:
- RAMPS 1.4
- Marlin firmware, CoreXY defined, steps per unit defined, all nice.
- A4988 drivers, set at 0,6V, they get their 24V properly (it's a 24V system with the diode from the RAMPS removed and a buck converter used to feed the Arduino).
- Pronterface on the PC to try to get the machine to move.
All fires up nicely, the LCD on the printer reads '3D printer ready', no errors. Via Pronterface, I can heat the hotend (I burned my finger...) and I get proper feedback of the temperature. I can also ask Pronterface to move in the X, Y an Z directions. On the LCD screen, I am told they moved the requested distance. But the motors didn't move, nothing happened. So the system thinks all is OK and it performed, while actually nothing happened.
What can I check? I could see something fail, but all drivers / motors at once I don't believe. I don't hear any humming of the motors when stationary, I did hear that on the NEMA 34s I had on my CNC router long ago.
[EDIT] I checked on the A4988s, VMOT is 24V, GND is indeed the negative connector of the power source, VDD and Enable are both 5V. My guess is this is not hardware related, maybe I should ask in the Marlin - Firmware section of the forum. Please disregard this post.[/EDIT]
Cheers,
Hugo
I wired my RAMPS 1.4 this morning and there is something amiss. But I cannot figure it out. What I have:
- RAMPS 1.4
- Marlin firmware, CoreXY defined, steps per unit defined, all nice.
- A4988 drivers, set at 0,6V, they get their 24V properly (it's a 24V system with the diode from the RAMPS removed and a buck converter used to feed the Arduino).
- Pronterface on the PC to try to get the machine to move.
All fires up nicely, the LCD on the printer reads '3D printer ready', no errors. Via Pronterface, I can heat the hotend (I burned my finger...) and I get proper feedback of the temperature. I can also ask Pronterface to move in the X, Y an Z directions. On the LCD screen, I am told they moved the requested distance. But the motors didn't move, nothing happened. So the system thinks all is OK and it performed, while actually nothing happened.
What can I check? I could see something fail, but all drivers / motors at once I don't believe. I don't hear any humming of the motors when stationary, I did hear that on the NEMA 34s I had on my CNC router long ago.
[EDIT] I checked on the A4988s, VMOT is 24V, GND is indeed the negative connector of the power source, VDD and Enable are both 5V. My guess is this is not hardware related, maybe I should ask in the Marlin - Firmware section of the forum. Please disregard this post.[/EDIT]
Cheers,
Hugo