How to connect and use a cnc probe with Mellow Fly-E3-Pro-v3? | Reprapfirmware, DSF and DWC | Page 1

chrome hedge Jun 24, 2025, 4:33 PM

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I am looking to repurpose an ender 3 printer as an inspection rig. I have the Fly-E3-Pro-v3 fitted and working. I need to fit one of these 3D CNC edge finders.

How best to connect this to the Fly-E3-Pro-v3 i.e. which pins?
What do I put in the config/macros?

Thanks!

last wraith Jun 24, 2025, 5:37 PM

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Just to an endstop and treat it like one

wise crow Jun 24, 2025, 6:45 PM

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wait, really? just like that? wow

chrome hedge Jun 24, 2025, 6:45 PM

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As I already have XY and Z endstops fitted does that mean I have to use the Z endstop pins. Doesn’t look like there are spare endstop pins available unless I am mistaken.

wise crow Jun 24, 2025, 6:46 PM

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you can use other pins as end stops

last wraith Jun 24, 2025, 6:46 PM

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You can use any set of inputs. The probe input is a good candidate

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Or there's the e0stop or e1stop

chrome hedge Jun 24, 2025, 6:47 PM

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Excellent, thanks

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Out of interest what is the original intended use of e0stop and e1stop?

last wraith Jun 24, 2025, 6:53 PM

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Filament sensors

#How to connect and use a cnc probe with Mellow Fly-E3-Pro-v3?