yep i figured that... right now wil leave 50mm to be safe 🙂
for now i think im set for z axis... though i had to use ratio to calculate mm/step instead of figuring out mechanical exected values so i might have some deviation... but any way lets get XY axis working lol
@phaedrux GOOD!! Awesome now I can have a better selling point of the machine is it can be connected either via USB, Ethernet, SD card, or Wifi but Im pretty sure you can only print over LAN or Wifi via the DWC right? Or if I had issues connecting to DWC are the alternate ways of printing?
I have my electronics cooling fan set up to monitor both the driver and MCU temperatures, with a temperature range of 45:55. That way, the fan will start to spin if the MCU temperature exceeds 45C, and it will be full on if either MCU temperature exceeds 55C or there is a driver overheat warning.
@dc42 It's a mosquito liquid hotend from Slice Engineering. Yesterday I received a new thermistor and heater cartridge from them for that block. I double checked the crimps on the thermistor JST connectors and the wire ferrules on the heater cartridge are good. I don't think it's the cooling fan though. I re-ran PID tuning without the fan and this is the result.
M307 H1 B0 R3.722 C283.2:94.4 D8.95 S1.00 V25.7
This is my sensor settings
M308 S1 P"20.temp0" Y"thermistor" A"Hotend" T100000 B3950 C7.06e-8
Heater 1 model: heating rate 3.722, cooling time constant 283.2/94.4, dead time 8.95, max PWM 1.00, calibration voltage 25.7, mode PID Computed PID parameters: setpoint change: P5.4, I0.106, D33.6, load change: P5.4, I0.263, D33.6
@avery1701 I second the recommendation to use a Meanwell or similar quality PSU. My delta a originally used a cheap no-name Chinese PSU. After quite a lot of use, a strange smell started coming from it. On investigation, this is what I found:
2020-05-07 11.27.54.jpg 2020-05-07 11.42.13.jpg
The toroidal inductor and load resistor had overheated.
to the end of your config.g and see if you're able to activate the extruder then.
If that doesn't work, Since this is a tool that will be using an external heater controller you could follow the advice in the cold extrusion wiki entry to define the tool without a heater associated at all.
Note: One limitation of M302 is that it requires a thermistor to be present for the temperature to be monitored. If your system does not have a thermistor or heater to be monitored, you can define your tool in M563 without a heater to disable cold extrusion protection on that tool. ex: M563 P0 S"Pump" D0 F0 Note the lack of H parameter.
@phaedrux Thanks for all your help, I did finally realize something that was quite confusing. the 5v select jumper you mentioned is labeled as such on the silkscreen on the board but in the board diagram image that you sent as well as the ones from setup tutorial's it is labeled as 5V source. Not sure why I didn't connect the 5v select you mentioned and that I finally saw on the board and the 5v source pin diagram I looked over quite a few times. Again, thanks for all your help with troubleshooting and have a nice day
@nightlonk42 we do not advise powering a tool board from an OUT port, because of the common-mode CAN voltage that would be applied when the tool board is powered off (which could disrupt CAN communication) and because of the current surge that will be drawn when you power up the tool board.
The recommended approach is to power the tool board from the same PSU (typically 24V) that powers the Duet, through an inline 5A fuse if you are not using a tool distribution board. Here's an example of an inline fuse holder: https://www.ebay.co.uk/itm/262131520883.
I'm glad you resolved it. BTW most other controller boards don't tolerate this type of short, it's likely to wreck the board. We designed Duets to tolerate it, because we know that it is relatively common.