Hello,
I'm quite new as using freecad, and 3D modeling.
I have an issue while doing a pocket (sweep through line) from a datum plane.
I'm using named fields in a spreadsheet.
I get a glitch inside my pipe:
I opened the Dependency graph, but nothing "appear" to me
I didn't see this issue first, but I get a similar problem when trying to made another pocket from bottom.
I would like to understand what I did wrong.
Regards
Glitch with pocket
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Re: Glitch with pocket
Sketch003 is overconstrained.Besides, why do you use an ellipse whith equal minor and major diameter? Use a circle instead!
The use of SubtractivePipe is unclear: as it lies completely above the tube it will not subtract anything. The additional line is caused by the fact that the path lies outside of the circle. It vanishes if you set Refine=true, which shows that it lies on the top border and nothing was cut away.
The use of SubtractivePipe is unclear: as it lies completely above the tube it will not subtract anything. The additional line is caused by the fact that the path lies outside of the circle. It vanishes if you set Refine=true, which shows that it lies on the top border and nothing was cut away.
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Re: Glitch with pocket
I think this is the result that the OP is looking for:-
- Attachments
-
- rhasspy_cylinder_06Bance.FCStd
- (52.75 KiB) Downloaded 14 times
Re: Glitch with pocket
But why would he add the final subtractive pipe then if the result was there before?
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
Re: Glitch with pocket
It wasn't, he was trying to get a rebate on the angled cut of the pipe using a sweep.
Probably should have tried to use a vertical line to sweep the ellipse.
Probably should have tried to use a vertical line to sweep the ellipse.
Re: Glitch with pocket
Thanks for your help !!!
So I removed the datum plane and use Bance technique for cuting the pipe.
I kept the ellipse sweep cut (instead of booleans).
I will post the final pieces
Regards.
So I removed the datum plane and use Bance technique for cuting the pipe.
I kept the ellipse sweep cut (instead of booleans).
I will post the final pieces
Regards.
Re: Glitch with pocket
Hello, that's me again
this time i would like to make a cut pattern(hexagons)
here is the first cut (seems ok) but when I use the multiply tool somes glitches appear: The "problem" come from the first hole which mus be done with an angle (all angle must be joining the Z axis) instead of being paralel to the Y axis.
I try to add two lines in a sweep cut, but it doesn't work.
I also don't know how to reproduce easyly my hexagon first sketch to apply it on the inside face with width reduction to apply a loft cut (and if it will work at the end ..)
I know i can't sketch directly on my cylinder face ...
how to do that ? :)
Regards.
this time i would like to make a cut pattern(hexagons)
here is the first cut (seems ok) but when I use the multiply tool somes glitches appear: The "problem" come from the first hole which mus be done with an angle (all angle must be joining the Z axis) instead of being paralel to the Y axis.
I try to add two lines in a sweep cut, but it doesn't work.
I also don't know how to reproduce easyly my hexagon first sketch to apply it on the inside face with width reduction to apply a loft cut (and if it will work at the end ..)
I know i can't sketch directly on my cylinder face ...
how to do that ? :)
Regards.
Re: Glitch with pocket
If you place the inner hexagon at exactly half of the distance of the outer hexagon then you can sketch it with exactly half the size and use a subtractive loft.
A Sketcher Lecture with in-depth information is available in English, auf Deutsch, en français, en español.
Re: Glitch with pocket
Thanks for the tip, it works. I had to do 3 times (one for each hole).
I still have an tiny overlapk but it's not an issue at all during printing I will correct this before the final print