You are not logged in.

#1 2017-03-12 00:20:24

mondo50m
Member
From: Florida
Registered: 2017-01-29
Posts: 39

How to calibrate 'Z'

All is running except being able to calibrate the Z axis.  I am using the PI3 with GPIO pins.  I have tried to use an end stop switch, but this method does not work.  How do I calibrate it without using an endstop switch?  Any help is appreciated.

Milt

Offline

#2 2017-03-12 03:44:36

bigfilsing
Member
Registered: 2016-11-20
Posts: 306

Re: How to calibrate 'Z'

Send the gcode command >> G92 Z0  which tells the printer its in the home/ start position

Offline

#3 2017-03-22 10:00:18

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,536

Re: How to calibrate 'Z'

I guess by GPIO pins you mean you are sending pulses through nanodlp itself.
Without end stop it will be difficult to use the printer. You need to calculate correct length of axis in pulse and enter it in setup page.

What kind of issue do you have with endstop?

Offline

#4 2017-03-22 22:31:36

mondo50m
Member
From: Florida
Registered: 2017-01-29
Posts: 39

Re: How to calibrate 'Z'

I am not able to get it to work on any of the pins that I use.  How should it be hooked up?  If I use pin 39 and list that in the setup, what pin do I use for the other wire?

Offline

#5 2017-03-23 07:59:58

Shahin
Administrator
Registered: 2016-02-17
Posts: 3,536

Re: How to calibrate 'Z'

Makes no difference which pins you are using. Just consider some of pins are dual purpose so you need to free them by changing rpi config.
Check out pinout website for more info https://pinout.xyz/

Offline

#6 2017-03-23 12:24:56

mondo50m
Member
From: Florida
Registered: 2017-01-29
Posts: 39

Re: How to calibrate 'Z'

I understand the pin out part of the PI.  What I, for some reason am not getting is where the second wire from the switch goes.  If one is on a numbered pin where does the other wire go?  To a ground area, a power pin, or where?  Nothing seems to work for the switch.

Milt

Offline

#7 2017-03-23 12:40:08

binfordboy
Member
Registered: 2017-02-28
Posts: 54

Re: How to calibrate 'Z'

3 Volt out. Never use 5 Volt! When the switch is closed the signal then goes to your selected Pi input pin.

Offline

#8 2017-03-23 13:10:38

mondo50m
Member
From: Florida
Registered: 2017-01-29
Posts: 39

Re: How to calibrate 'Z'

Thank You very much.  Have to get to work right now, gym after work, maybe later to get on this again.  Slow, slow process.

Milt

Offline

Board footer

Powered by FluxBB