I have made a few updates to the board:
- The fuses are now in the positive line, this should improve safety. I have chosen to go for polyfuses, but I will test normal fuses in this design as well.
- The power tracks are made a lot thicker, the heated printbed should be able to get 16amp without burning the traces in the new design.
- The connectors are changed to 16amp types. This should prevent heat problems, and this is in line with the trace design!
- I have added Vmot (which is the power switched by the relay) to the AUX. In the future I will try to make this port useful as a fan-extender. A 7812 and two transistors should make a nice dual fan-output on this port.
Thanks for the feedback! I'll keep working on it as soon as more issues arise, so feedback is still more than welcome!
- The fuses are now in the positive line, this should improve safety. I have chosen to go for polyfuses, but I will test normal fuses in this design as well.
- The power tracks are made a lot thicker, the heated printbed should be able to get 16amp without burning the traces in the new design.
- The connectors are changed to 16amp types. This should prevent heat problems, and this is in line with the trace design!
- I have added Vmot (which is the power switched by the relay) to the AUX. In the future I will try to make this port useful as a fan-extender. A 7812 and two transistors should make a nice dual fan-output on this port.
Thanks for the feedback! I'll keep working on it as soon as more issues arise, so feedback is still more than welcome!