Adjusting Z zero during printing. October 22, 2014 10:07PM |
Registered: 9 years ago Posts: 36 |
Re: Adjusting Z zero during printing. October 23, 2014 05:42AM |
Registered: 11 years ago Posts: 1,592 |
Re: Adjusting Z zero during printing. October 23, 2014 10:02PM |
Registered: 9 years ago Posts: 36 |
Re: Adjusting Z zero during printing. October 24, 2014 03:08AM |
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Re: Adjusting Z zero during printing. October 25, 2014 06:08PM |
Registered: 10 years ago Posts: 56 |
Re: Adjusting Z zero during printing. October 28, 2014 01:24PM |
Registered: 12 years ago Posts: 81 |
Quote
Chri
Best way is to modify your printer so Z uses only one Stepper and Disable Z-hold, then you can adjust your heigh as you want, that especially helps when printing very small and thin layer
Chri
Re: Adjusting Z zero during printing. October 29, 2014 05:51PM |
Registered: 9 years ago Posts: 36 |
Quote
barakori
An alternative approach is to adjust your Z level to be exactly accurate and then print without modifying Z at all.
You can do whatever you want (e.g. lower the head until the Z endstop is reached, then adjust Z manually). Once everything is ready start printing with no need to pause during the print.
I'm using pronterface, but I assume the process is similar.
Note that you will need to modify your G-code to not home the Z axis, and instead, reset Z to 0 at the current height.
I'm using slic3r and I just replace this line:
G28 ; home all axes
With the the following two lines:
G28 X0 Y0 ;move X/Y to min endstops
G92 Z0 ;Set Z to zero
Recently I feel my Z endstop is not very accurate (X / Y accuracy is not as important anyway), so I've been using this technique with good results.
Sorry I don't remember where I read about it - probably a thread in this forum about Z accuracy issues.
Re: Adjusting Z zero during printing. October 30, 2014 03:01PM |
Registered: 9 years ago Posts: 74 |