Hello, I setup a new bl touch v3.0 physically mounted left of nozzle 35mm. 0mm in y. I placed this in my config.g g31 line and tried 3 possible entries. All three where ignored. First I wrote x35mm y0 z2.01 running the probe bed comp, probing wanted to start a x0 putting probe off the bed. I changed the offset value to x-35 and the x10. None of these value changes reflected any difference. All the time with my probe mesh grid defined as x52:300 y5:286. why would probing ever start at x0?

printer runs homing and than over to x0 and starts to z down off bed edge.0_1559756477300_cofig for probe.txt 0_1559756483694_override.txt 0_1559756490571_mesh.txt 0_1559756497003_bed.txt

thankyou!

New test results0_1559564317970_bl touch test for forum.txt

duet board doesn't supply the mosfet power directly to the heater. it's output is being used as signal input for a secondary heater ssr rated at 3 times the intended load.

should there be a m564 s1 command line in homing files involving probe during intended triggering of probe or does the g30 and g31 cover the stop at switch event part?

I removed the m401 and 402 from homeall.g and homez. I used the factor 1 meter cable that comes with the new v3.0 bl touch. It's a 2 pin yeelow orange and black mounted at the heater 7 connector on my duex 5 expansion board. Then the 2 pin white and black sensor connectotr is mounted to the duet ethernet board probe in connector. looking at the board the top 2 of the 4 probe pins with ground being the top most pin. I have had the bl touch v2.0 for a year, but bought the newset version to rule out a bad probe. I used the supplied cables. I also ran them and all end stop cable in copper shielded cable covers with kapton sleeve . emi shielding. extremely low noise over senor wiring. And in machine properties I see z endstop state change when I touch probe pin during sensor testing. It's just not stopping or reflecting the position change. I had this happen a years ago with 2.00 rcos but forget what the fix was in config.

Hello again, Ok I got the bl touch working by removing the I1 from m280. However homing machine probe deploys turns blue like it show but dont stop when triggered. the probe pin draws up on contact, but firmware isn't stopping movement. machine properties indicates z not stopped before homing, and after probe contact end stop hit. its just not stoping and setting zero0_1559522906537_homeall.txt 0_1559522913353_config.g new.txt

What should the line look like to run a heater rated for 12 volts of 24? In other words stretching the limits of pwm control. I route pwm signal from hotend jack from duet to the signal input from a stand alone solid state heating board intended to serve this function. Its 30 amp 12v - 72v ac or dc compatible with signal range from 1 pulse per sec to 48khz at 3.3vdc - 30vdc range.

so I just wanna supply the heater0_1559318431073_heater.txt a 50 percent pwm duty cycle rate to simulate 12vdc.

ok that cleared it up. I still can't explain how it worked that way under older firmware? I'd like to say who care it works now, but finding a more true understanding is the only recipe for success with this stuff anymore. Thanks Phaedrux and dc42 for you efforts, they paid off. If you ever need any uccnc or deskproto cam knowledge I'm your guy! I'm a mechanism at my local power plant, but code understanding is still not my strong suit. Thanks!

ok what was the i1 command? single inversion I guess? How does that relate to the expansion header?