SOLVED Struggling with Rigid.Ink PETG - what's the best way to accurately change Z axis gap?

[purps 9]

Hi all,

I won't bore you with everything I've tried to get this material to print well, but I think it's down to bed height (PETG needs extra Z gap).

The advice is to back the bed off in 0.02mm increments until you get the gap right. Can I do this through Cura rather than trying to do it with the thumb screws? If the material is apparently that sensitive to build plate height, then I feel like the best thing to do would be to level the build plate as per my normal method just once, and then adjust the gap in software rather than trying to turn 3 thumbscrews the same amount...

I can't see the setting in Cura, and I believe I've read it's not there - hope I'm wrong. Or can I edit the Gcode?

Cheers,

Matt.

[Labern 774]

There is initial layer thickness you can play with but not really what your after.

What printer are you using? for UM2 this can be done using tinkergnomes firmware on the printer itself.

[purps 9]

Thanks for the reply, that reminds me I need to try your fan shroud :-)

I'm using the UM2+. Is that custom firmware? I have not delved into that world yet! But it sounds good for what I want to do, I am really looking for repeatability here.

Cheers,

Matt.

[purps 9]

I have just started the tinkergnome firmware journey using the power of the search function. It looks really good, I think I will have to give it a go.

Thanks again.

Matt.

[Labern 774]

Yes it is custom firmware and it's a must for UM2serries owners. It has a geek mode with a huge amount of extra features.

You can download it here

Download the one that matches your printer and use CURA to install it. In CURA just select install custom firmware and select the file you downloaded.

[purps 9]

I'm embarrassed that I've never heard of it, thanks for making me aware!

Just started playing, and oh my.

Cheers,

Matt.