Touch Plate Error

I have an MPCNC Burley with a mini rambo board that i built with my son for a collage project a few years ago. I recently dusted it off and got it running. The short story is i connected the touch plate wires backwards(power to ground )on the board and the screen flashed when I tested it. Once I wired it correctly it does not stop the Z when it touches. Everything else works correctly tool changes are hit and miss getting the z 0 with the new tool. I figure that a new board is required to use the touch plate and I am wondering which board to use. Thanks for any advice

A jackpot board will be one of the least expensive options, IMO, however about any old 3D printer board can probably be made to serve. The Jackpot doesn’t have an LCD, you use a wifi connected browser device instead.

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Thank you for the advice

I agree. Jackpot is the least expensive option. And a great option as well!

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Jackpot for new buy, but you might be able to remap that probe to a different pin if you really want to save that existing board.

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How would you remap the pin?

We’d need to change the definition in the Malin source and rebuild.
Sometime later today I’ll take a look at the mini Rambo board design and see what options you’d have.

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Thank you I have no programming experience but I am up to trying if you have the time. I just need guidance. Thanks for all your input.

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I’ll take a stab at this. Do you know what version of firmware is on your Rambo? Was it one you pulled down from the V1 site?

If it’s V1 firmware, I’m confident I can build it- but I don’t have a mini rambo to test with.

If you’d like to give it a go building this for yourself, we can work together on your setup.

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I bought the min rambo from V1 with the firmware installed when we built the machine.

I am always open to learning but I know next to nothing about programming. I am an aircraft mechanic. I am not afraid to try if you have the time.

Some of the most capable people I’ve worked with have been A&P mechanics or Avionnics techs. I’m in a related industry (Spacecraft).

I’m still trying to catch up on a bunch of chores and prep-for-winter stuff, but later this evening I’ll dive in. Since you have a V1 purchased board the frimware from the site here will be something I can work with- just need to dig a bit and then get it over to one of my test machines to try and build.

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I understand about winter. I live in Fairbanks Alaska and we are forcast to 12 to 18 in of snow between now and Tuesday. There is no rush. I Really appreciate your help.
Michael

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Still going slow, sorry about the delay.

You’re using the V1 MPCNC MiniRambo firmware without dual endstops, right?

If so, then I believe the sources are here:
https://github.com/V1EngineeringInc/MarlinBuilder/releases/download/515/V1CNC_MiniRambo-2.1.1.zip

If that’s what you have, then I can get that loaded up and open it up with platformio.

Does your machine have an LCD or an ESP-01 web interface? If an LCD, which one?

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Yes mini rambo, no end stops and lcd screen.

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I will have to look at which screen it is when I get home from work today

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Here are pics of the firmware version and the LCD screen

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Got it.
I’m on travel to go to a funeral and when I get back I’ll pick up trying to sort out a build attempt.