LailaTheElf/KlipperToolboard
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Merge branch 'master' of https://github.com/bondus/KlipperToolboard

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Pontus Borg 2020-06-20 22:14:05 +02:00
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@ -24,7 +24,7 @@ Change ideas:
--- ---
2020-05-18: ## 2020-05-18:
First prototype production run is done. First prototype production run is done.
@ -32,7 +32,8 @@ First prototype production run is done.
They work! They work!
2020-05-29: ---
## 2020-05-29:
![Test setup](TestSetup.jpg) ![Test setup](TestSetup.jpg)
@ -47,8 +48,8 @@ After a lot of software work and many hours of testing I can report that everyth
It is possible to fit different connectors for most functions. It is designed for mostly angled JST-XH or screw terminals but it's possible to fit straight connectors or other 2.54mm for most functions. JLCPCB do not mount through holes so the boards come without connectors. It is possible to fit different connectors for most functions. It is designed for mostly angled JST-XH or screw terminals but it's possible to fit straight connectors or other 2.54mm for most functions. JLCPCB do not mount through holes so the boards come without connectors.
For a larger (>30) production run the boards would have to be panellized, which looks like a non-trivial task with KiCAD. If anyone has experience and wants to help ... For a larger (>30) production run the boards would have to be panellized, which looks like a non-trivial task with KiCAD. If anyone has experience and wants to help ...
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2020-06-10: ## 2020-06-10:
Version 0.4 is almost complete. Version 0.4 is almost complete.
@ -59,7 +60,7 @@ Version 0.4 is almost complete.
* Serial pins removed, not very useful anyway * Serial pins removed, not very useful anyway
* Fan/heater connectors tweaked to be able to fit JST XH, screw terminals or Molex KK connectors. * Fan/heater connectors tweaked to be able to fit JST XH, screw terminals or Molex KK connectors.
* Added a micro-USB connector for easier flashing and possibly other features. The board is not powered from USB. * Added a micro-USB connector for easier flashing and possibly other features. The board is not powered from USB.
* Switched to an STM32F106, mainly to allow for a proper bootloader and flashing over USB. Or even over CAN if I develop a custom bootloader. With many boards it would be very nice to be able to bulk flash them all at once over CAN. * Switched to an STM32F103. Mainly to allow for a proper bootloader and flashing over USB. Or even over CAN if I develop a custom bootloader. With many boards it would be very nice to be able to bulk flash them all at once over CAN.
I have done thermal stress testing of the board. It can run a big stepper at 1.5A, board attached very close to the hot stepper with no forced airflow and 25C ambient. The driver reaches 90C (measured with a probe) but does not shut down due to overheating. The entire board heats up as designed to act as a heatsink, most inner and outer copper layers are groundplanes to spread the heat. I have done thermal stress testing of the board. It can run a big stepper at 1.5A, board attached very close to the hot stepper with no forced airflow and 25C ambient. The driver reaches 90C (measured with a probe) but does not shut down due to overheating. The entire board heats up as designed to act as a heatsink, most inner and outer copper layers are groundplanes to spread the heat.