Random seam at *each* perimeter
 
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Tentama
(@tentama)
Active Member
Random seam at *each* perimeter

I'd like to make a print watertight without too many perimeters and post production, one idea I have in mind is to use the "Random" seam position. At first I imagined this option to be "random seam position in each perimeter" but after sliced a test object I could tell this option mean to be "random seam position in each wall". 

Following is a screenshot of a sliced object with random seam. You can see it has 4 perimeters in total, and there are only two seam positions. I was expecting the option to give me four seam positions that are all random positions -- and ideally make each seam in a wall far away from each other. Is there a way to achieve this? 

I learnt from Prusa knowledge base's excellent article Watertight prints that I need at least 3-4 perimeters for a single wall to make a print watertight, I'm not sure this is a reliable way because current seam position is not going to trap the liquid easily. I really think a true random seam position at each perimeter will be a cheap way to make a print water tight. 

Seam position "Random"

Prusa i3 MK3S / Prusa Slicer / PEI sheet / Texture sheet / Satin sheet / design using Tinkercad...
Posted : 01/08/2021 4:43 pm
Steve
(@steve-3)
Estimable Member
Use 100% perimeters

Try slicing the object with 3 or 4 walls so it prints as all perimeters. Set the wall width to allow exactly 6 or 8 line widths. This will be a lot more watertight than using infill. Also, you might not really need to worry about the seams. The inner seams usually print using a small jog and the nozzle doesn't really turn off, even if it looks like a break in the slicer.

Other things to consider. Turn up the temperature a few degrees. Over-extrude slightly so the lines have to squish together.

Steve

Posted : 02/08/2021 11:24 pm
Tentama
(@tentama)
Active Member
Topic starter answered:
Thanks!

Thanks Steve for sharing tips -- will give it a try! (-; 

Prusa i3 MK3S / Prusa Slicer / PEI sheet / Texture sheet / Satin sheet / design using Tinkercad...
Posted : 23/08/2021 4:55 am
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