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It wasn't supposed to do that. It always does a small Z down when homing and the bed was just too low..

@@Polar_Ted I mean, now you do have me wondering about putting three fixed limit switches on the bed and not having a probe at all :-).

GT2 6mm.. standard gates belts

Spare PTFE tube works great

It's a PD65 heat plate.. I posted a link in the description.

Yes

Yeah, just a gcode file with G4 P and M109 commands.

It's a custom PCB I designed with NeoPixel Nano WS2812B 2020 leds.

Keep in mind that this is low temp solder paste for temperature sensitive components like LEDs. . It melts at 220 C. The next step is to write gcode to perform a ramp and reflow heat cycle.

www.printables.com/model/324657-eva-24-e3d-revo-fan-cover-klicky-probe-mount

To check whether thing break or not, why waste plastic for testing.

@@mophie6941 to test it...

In theory, to check whether e-steps are lost or not during such fast movements In reality, you'll see "800mm/s, 20k accel" in the title and click it

@Repka Tre it looks fast but does not corespond to real printing speed, until we know more about this particular machine

this is more of a demo. but you do it it test how sudden accelerations are going to affect your motors. If they lose a few steps your part is fucked

other than the initial dialing in of the switch offset setting it's very reliable.

It's been on the machine for 4 months now. It's a solid performer.

I got it put on my vzbot! Excellent mod. I'm getting a much larger offset than you though, I think I need to improve my manual configuration first. I have your v6 mod as well and love it. Excellent work!

@@M1America You can fine tune the calculated offset by adjusting the switch_offset variable. "The "z_calibration:switch_offset" is the already mentioned offset from the switch body (which is the probed position) to the actual trigger point above it. A starting point for this value can be taken from the data sheet of the Omron switch (D2F-5: 0.5mm and SSG-5H: 0.7mm). It's safe to start with a little less depending on the squishiness you prefer for the first layer (for me, it's about 0.46 for the D2F-5). So, with a smaller offset value, the nozzle is more away from the bed! The value cannot be negative."

@@Polar_Ted How about the bed mesh? I am using relative positioning from the front left, which is the same part of the bed im doing the z-calibration on. Bad Idea? My switch offset is coming out to be .53. And the calculated offset is somewhere in the 0.6 range. It varies quite a lot actually, does that mean I need a nozzle wipe?

TY for the comment about the reduced offset being further from the bed. I overlooked that haha.