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Z offset after homing

Posted by RC-CnC

RC-CnC

Z offset after homing
September 08, 2018 04:36PM

Registered: 10 years ago
Posts: 87

Hi
Marlin 1.1.8
Anybody know how to offset z height to physically be 1mm above the mechanical endstop switch after homing

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Roberts_Clif

Re: Z offset after homing
September 08, 2018 05:08PM

Registered: 6 years ago
Posts: 1,863

If you are not using Z Clearance Deploy Probe you could possible use it.

#define Z_CLEARANCE_DEPLOY_PROBE 10 // Z Clearance for Deploy/Stow

I prefer clearance 10mm as you can see by my line of code above.

Computer Programmer / Electronics Technician

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RC-CnC

Re: Z offset after homing
September 08, 2018 09:21PM

Registered: 10 years ago
Posts: 87

But I'm not using a probe of any kind

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Roberts_Clif

Re: Z offset after homing
September 09, 2018 09:01AM

Registered: 6 years ago
Posts: 1,863

I used
#define Z_PROBE_OFFSET_FROM_EXTRUDER -0.5 // Z offset: -below +above [the nozzle]

And
#define Z_CLEARANCE_DEPLOY_PROBE 10 // Z Clearance for Deploy/Stow

With end-Stop Switch, and you should be able to.

Computer Programmer / Electronics Technician

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RC-CnC

Re: Z offset after homing
September 09, 2018 08:54PM

Registered: 10 years ago
Posts: 87

Ohh I thought it was for use with a probe...I'll give it a try

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Roberts_Clif

Re: Z offset after homing
September 09, 2018 09:05PM

Registered: 6 years ago
Posts: 1,863

Well even the first SN04-N Inductive probe used is nothing more the a NPN NO powered transistor switch with the ability to sense metal at a 5mm distance.
It was swapped in for my standard End-Stop Switch without any firmware changes to my Marlin firmware.