Posts: 30
Joined: Fri Sep 02, 2016 4:57 pm

Tool change retraction script for Dual Print

Mon Oct 03, 2016 6:15 pm

I customized my startup script to retract the idle nozzle after the initial startup wipe/purge that way it doesn't get all over the place when the working extruder does its job for the first layer.

This is the line I added, more specifically the "E" for the idle nozzle for its wipe

G1 X120 Y-50 Z0.15 E-12 F1200 ; slow wipe

All is good up until it comes time to use the idle extruder. I'm using an ooze shield and when it comes time for the extruder/color change it doesn't extrude anything for its ooze shield layer, or the real model, but gets going eventually. Everything after that point is fine I think for tool changes.

Since I retracted the nozzle in the startup script, I assume I now need to prime the nozzle for the first tool change? Is that how I resolve this?

What code do I need to add and where? Tool change scripts?

Posts: 2005
Joined: Wed Aug 05, 2015 7:23 am

Re: Tool change retraction script for Dual Print

Tue Oct 04, 2016 7:53 am

Yes, if you retracted the extruder in the starting script then you need to prime it. It's just a simple G1 E move. If you don't know how to do that, it would be a good thing to learn since it's really simple and used constantly by your 3D printer

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