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how would you go about making this piece? (challange) (by Ektor)
hello,
in my desire to better myself on solvespace. I'm trying again to do solidworks exercises with solvespace.
It is far from being easy. But I can do it sometimes.
I was wondering how you would achieve the same result?
Here is the plan of the piece.
https://tinyurl.com/yckmkahx
And my result. (I often use NURBS).
https://tinyurl.com/37t6we4n
If you have any tips, advanced techniques.
Do not hesitate to share your files :)
Thanks
in my desire to better myself on solvespace. I'm trying again to do solidworks exercises with solvespace.
It is far from being easy. But I can do it sometimes.
I was wondering how you would achieve the same result?
Here is the plan of the piece.
https://tinyurl.com/yckmkahx
And my result. (I often use NURBS).
https://tinyurl.com/37t6we4n
If you have any tips, advanced techniques.
Do not hesitate to share your files :)
Thanks
(no subject) (by Jaroslav Kopal)
It's a simple part. Almost a textbook example. ???
(no subject) (by Paul)
@Ektor
First, your attached pas_facile.slvs file crashes or freezes solvespace for me. What version did you use to create it and on what OS?
@Jaroslav Kopal It is a very simple part. The challenge with Solvespace is making all those fillets at the base of the extrusions.
A while back I was working on adding fillets or chamfers to extrude groups. My thought was to allow that on either end. For parts like this you would simply sketch the triangular shape and extrude it, adding an optional fillet of some radius on the bottom. Same for the 3 circles extruded on the other side. IMHO this covers more than half - perhaps 80 percent - of the cases where people want chamfers or fillets. I think this is much easier to add this than to create a general-purpose fillet or chamfer tool.
So my own solution to the challenge will involve adding some new capabilities to Solvespace that make the challenge trivial ;-)
First, your attached pas_facile.slvs file crashes or freezes solvespace for me. What version did you use to create it and on what OS?
@Jaroslav Kopal It is a very simple part. The challenge with Solvespace is making all those fillets at the base of the extrusions.
A while back I was working on adding fillets or chamfers to extrude groups. My thought was to allow that on either end. For parts like this you would simply sketch the triangular shape and extrude it, adding an optional fillet of some radius on the bottom. Same for the 3 circles extruded on the other side. IMHO this covers more than half - perhaps 80 percent - of the cases where people want chamfers or fillets. I think this is much easier to add this than to create a general-purpose fillet or chamfer tool.
So my own solution to the challenge will involve adding some new capabilities to Solvespace that make the challenge trivial ;-)
(no subject) (by Ektor)
@paul.
version of solvespace : 3.0 (stable)
os : windows 7 64bit
strangely, I tried to open it with another pc. it crashed.
for info solvespace consumes 1go of ram.
I added the version without the fillet.
version of solvespace : 3.0 (stable)
os : windows 7 64bit
strangely, I tried to open it with another pc. it crashed.
for info solvespace consumes 1go of ram.
I added the version without the fillet.
(no subject) (by Paul)
@Ektor
pas_facile_v2 works fine for me. In fact if I have chord tolerance (CT) set to 0.05 percent I can uncheck "force NURBS to triangle mesh" in group g008-extruder and it still works fine. The default CT of 0.1 percent fails for me with some red around one NURBS surface.
OK, it crashed with CT set to 0.01 percent - no idea why I had it set so low. This is a Solvespace configuration parameter and is not saved with the sketch, so when it crashed your other machine maybe this is why.
I tried opening the original with my CT set to 0.05 percent and it opened fine. I was able to uncheck the triangle mesh option in g008 and it still works although g00f-revolve is still forced to mesh, and it locks up if I uncheck that (strangely the menus still work and I was able to exit?)
It also looks like your fillets inside the triangle are intersecting, which the reference diagram does not show. If I speculate, I think those overlapping fillets may be triggering issue #1058 which consumes a lot of RAM and then crashes:
https://github.com/solvespace/solvespace/issues/1058
Look like you made a mistake in g007 with the radius of the interior part of the the 3 circles. The walls there are not supposed to be as thick as the outer ones. This may explain why the fillets overlap later on.
pas_facile_v2 works fine for me. In fact if I have chord tolerance (CT) set to 0.05 percent I can uncheck "force NURBS to triangle mesh" in group g008-extruder and it still works fine. The default CT of 0.1 percent fails for me with some red around one NURBS surface.
OK, it crashed with CT set to 0.01 percent - no idea why I had it set so low. This is a Solvespace configuration parameter and is not saved with the sketch, so when it crashed your other machine maybe this is why.
I tried opening the original with my CT set to 0.05 percent and it opened fine. I was able to uncheck the triangle mesh option in g008 and it still works although g00f-revolve is still forced to mesh, and it locks up if I uncheck that (strangely the menus still work and I was able to exit?)
It also looks like your fillets inside the triangle are intersecting, which the reference diagram does not show. If I speculate, I think those overlapping fillets may be triggering issue #1058 which consumes a lot of RAM and then crashes:
https://github.com/solvespace/solvespace/issues/1058
Look like you made a mistake in g007 with the radius of the interior part of the the 3 circles. The walls there are not supposed to be as thick as the outer ones. This may explain why the fillets overlap later on.
(no subject) (by Paul)
Here, I deleted c061-eq-radius from group g007 and set the radius of one of the 3 interior arcs to 32. Then I changed the distance in g011 from 18 to 16 to match the reduced radius. These changes prevent the fillets from overlapping, but doesn't eliminate the crash or allow it to be fully NURBS. It is more correct to the original drawing.
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