Longtime SolidWorks and NX user here trying to learn FreeCAD.
I sketched an X shape and padded that to the desired thickness. Then I sketched some tabs sticking off of the ends of the X and padded that sketch back down to the bottom face of the X shape. Instead of getting one nice-looking solid, the graphics window looks like it has 5 different solids, including showing the overlap between bodies. But if I click on the body, it gives me a transparent rendering of what I was expecting.
The boolean tools in FreeCAD appear to be just for working with distinct bodies, but what I've got are pads within the same body. Is there some way to get it to fuse or unite overlapping pads or should I have made the tabs as a new body (which would potentially give the error about making separate solids)?
Thanks,
David
overlapping pads in PartDesign don't fuse/unite
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overlapping pads in PartDesign don't fuse/unite
Last edited by dbotos on Sat Nov 26, 2022 10:56 pm, edited 1 time in total.
Re: overlapping pads in PartDesign don't fuse/unite
Use the Refine option in Pad settings instead of boolean union.
Re: overlapping pads in PartDesign don't fuse/unite
Hi and welcome to the forum!
Don't worry, they are fused. PartDesign applys the boolean union all by itself. Only the seams remain. You can remove these too by setting Refine=true in the last feature. I don't recommend to do this by default, because in the rare occasions when it fails, there is no obvious connection to the refine causing it.
Don't worry, they are fused. PartDesign applys the boolean union all by itself. Only the seams remain. You can remove these too by setting Refine=true in the last feature. I don't recommend to do this by default, because in the rare occasions when it fails, there is no obvious connection to the refine causing it.
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- Shalmeneser
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Re: overlapping pads in PartDesign don't fuse/unite
File ?
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- X_file_SHALM.FCStd
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Re: overlapping pads in PartDesign don't fuse/unite
Ah, thanks all - that did the trick:
Here's the completed model. It's a minimalistic mount for an Arduino Uno r3. It connects the mounting holes for the board (the pattern of which they didn't make symmetric in either X or Y) with an X shape, provides some little bosses for the board to sit up on, and then brings tabs out past the edges of the board so you can install or remove the mount without having to take the board off:
Part file attached. Holes through the standoffs are the tap drill size for 4-40 and holes through the tabs are clearance for 4-40.
Here's the completed model. It's a minimalistic mount for an Arduino Uno r3. It connects the mounting holes for the board (the pattern of which they didn't make symmetric in either X or Y) with an X shape, provides some little bosses for the board to sit up on, and then brings tabs out past the edges of the board so you can install or remove the mount without having to take the board off:
Part file attached. Holes through the standoffs are the tap drill size for 4-40 and holes through the tabs are clearance for 4-40.
- Attachments
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- uno_r3_mount_X.FCStd
- (113.6 KiB) Downloaded 10 times
- Shalmeneser
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Re: overlapping pads in PartDesign don't fuse/unite
tabs_sketch has a problem (and we can see modifications donwstream) !
You should use simple slots in this sketch (as in my file).
I woud do :
1) one sketch for the 4 circles for arduino holes.
2) one sketch for one X line = slot + external geometry
Pad this sketch
3) one sketch for other X line = " + "
Pad this sketch
4) one sketch for extension = slot + external geometry
Pad this sketch
5) one sketch for higher holes = external geometry
Pad this sketch
So you just need slots or circles in your sketches.
You should use simple slots in this sketch (as in my file).
I woud do :
1) one sketch for the 4 circles for arduino holes.
2) one sketch for one X line = slot + external geometry
Pad this sketch
3) one sketch for other X line = " + "
Pad this sketch
4) one sketch for extension = slot + external geometry
Pad this sketch
5) one sketch for higher holes = external geometry
Pad this sketch
So you just need slots or circles in your sketches.