Spacing needed when using "by object" printing is too conservative

Bambu Lab A1 Series Bambu Lab A1 mini
1

I’ve bought an A1 mini specifically for doing some production of some D=60mm h=10mm rings in PETG. I now produce 5 at a time with my Ender V2, but I don’t seem to get 4 of them on the A1 mini build plate.

When I use Cura, make a machine profile for the A1 mini and fill in the print head size, I can get 4 parts on the build plate without issues.
Unfortunately, I can’t yet seem to get all the other settings figured out properly, so the rings keep coming off the bed when I use the gcode from Cura.

Is there a way to override the Bambu safety settings for this? I’m sure the print head won’t actually hit the other parts if I just control the sequence of the parts properly.

Any suggestion to get me to print 4 at a time is welcome… Otherwise I’ll start manually editing the gcode. Which I’ve done many times before on my Ender, but it’s always a bit risky.

2

Merge 2 of them to one object, and print 2 of those pairs.

Why do you actually print those by object?

3

The prints are faster and cleaner when you don’t have all the excess travels from one part to the other in each layer. On my Ender it was a necessity, because there was quite a bit of stringing with PETG. It’ll probably be less of an issue with the Bambu, but still, sequential printing is preferred.

Merging them together kind of defies the purpose, because then it would still move from one to the other in each layer.

4

I decided to at least try to print a batch without the “by object” setting.
Result came out perfect (no stringing problems) and I could even fit 6 of them on a sheet. Print time wasn’t significantly longer given the extremely rapid travel speed of the Bambu.

I’m happy. Thanks!

1 Like