Print Quality: peremiters cut across holes
Hi, I have an issue. I have just started print with ABS, and one of the things I am trying to print has a threaded hole in it. The problem is the perimeters are cutting across the hole once they are printed. I took a photo:
Anyone have any idea how I can prevent this? My hot end is already at 255 and the bed temp is 110. I had it set lower before 240 and 100 respectively - I still had the same issue.
I also lowered my print speed, but that did not help.
Thanks for any help.
Jason
Re: Print Quality: peremiters cut across holes
I guess you're trying to slice it with layer height too big compared to printed thread parameters. What is the thread specification (diameter, pitch) and what layer height did you use?
Re: Print Quality: peremiters cut across holes
I guess you're trying to slice it with layer height too big compared to printed thread parameters. What is the thread specification (diameter, pitch) and what layer height did you use?
I don't know the pitch (I did not design it), the diameter is about an inch across. I am printing at 0.30 with a 0.35 nozzle. I think you do have a point though so I will try 0.20 and see how that works out. Thanks for your insight.
Jason.
Re: Print Quality: peremiters cut across holes
I think you will need 0.15 or even 0.10. But of course you can try higher values first.
Re: Print Quality: peremiters cut across holes
I think you will need 0.15 or even 0.10. But of course you can try higher values first.
You might be right. I printed @ 0.20 and it did not help. However printing this part at a lower setting is not worth it. It's just a spool holder. I can just cut off the perimeters that cross over. It should not effect it's functionality.
Re: Print Quality: peremiters cut across holes
Try printing a little slower and give the perimeter filament a chance to stick to it's neighbor before it is pulled away by the nozzle as it stretches the filament during travel. Outer perimeter walls are no problem because the nozzle is pulling the filament against the neighboring filament instead of pulling it away, like it does on inner perimeter walls.
Also try spinning up the cooling fan a bit, if you can. The whole idea is to get that filament to stick quickly as it is laid down so it can resist the stretching action trying to pull it away.
Then, again, as you've mentioned, it depends on how much you care about the part you're printing - if a pristine surface is not necessary, just let it go.
Robert