3DPrinting
3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
The r/functionalprint community is now located at: [email protected] or [email protected]
There are CAD communities available at: [email protected] or [email protected]
Rules
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No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
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Be respectful, especially when disagreeing. Everyone should feel welcome here.
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No porn (NSFW prints are acceptable but must be marked NSFW)
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No Ads / Spamming / Guerrilla Marketing
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Do not create links to reddit
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If you see an issue please flag it
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No guns
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No injury gore posts
If you need an easy way to host pictures, https://catbox.moe may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is 
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The problem with dual Z is when you turn off the printer, motors lose power and can missalign. You can connect motors with belts or just print some brake-like part that makes enough friction to stop motors from moving under weight of printer itself. Idealy you will have 1 motor per axis
I had a dual Z printer before (Tronxy X8), so I know the issue.
I already mentioned tying the motors together with belts.
But if you want to not do any modifications, you can also move the print head off the bed, disable software endstops and move the Z axis down until both motors start to skip. That sounds bad but doesn't hurt the mechanics or engines at all, they are built with skips in mind.
That also aligns both Z axies.