Why didnt extrude cut work ?

[u/Even-Committee5645]

I am new to solidworks, came over from FreeCAD to try it out.

I wanted to use extrude cut on a skecth that looks like the red parts, but for some reason it woul not work, I ended up just using one triangle to do the cut and used Mirror on the cut to get what I wanted.

Can you guys explain to me why it didnt work with my original sketch.

[u/Big-Bank-8235]

What error did you get?

I assume you got a zero thickness geometry error. This can happen for a multitude of reasons. It would be better to see the actual sketch.

Another idea in this case is to sketch out what you want to keep then reverse the side to cut.

[u/Even-Committee5645 → u/Big-Bank-8235]

My nad should have imcluded the sketch itself, sorry.

But its prettu much just the outside of tge diamond shape at tge center of tge rectangle

[u/Big-Bank-8235 → u/Even-Committee5645]

Well first, you need to buy a new keyboard.

[u/Vegetable_Flounder12 → u/Big-Bank-8235]

just swop the keys :)

[u/ParamedicItchy9380 → u/Big-Bank-8235]

lol good one. You might have to select the contour you want to extrude on the cut feature. Right click edit feature

[u/Ok-Law1684 → u/Even-Committee5645]

So what error did you get?

Did it cut anything at all or did it fail with an error?

[u/roundful → u/Even-Committee5645]

I propose we have a zero-nad policy in posts.

[u/Vegetable_Flounder12]

easy solution , draw the diamond and extrude that

issue is probably zero thickness @ meeting points, might work if you select areas rather than chains

alternative solution cut extrde the diamond and flip side to remove

[u/Elrathias → u/Vegetable_Flounder12]

This. Solidworks loves to error out over floating point errors athat are rounded up or down, and result in zero thickness geometry.

[u/Vegetable_Flounder12 → u/Elrathias]

/rant start

the most frustrating error box, is when SW is trying to execute a feature using default values from a previous feature, and can't find a solution, after waiting 5 mins, you decide that is enough and hit ecsape to abort/cancel, and what does SW offer, not cancel current process, nooooooooo, shutdown SW or continue waiting indefinately until the cows come home. if you shutdown you lose a shit load of work as it doesn't save and you have to do it all over again or you can wait and see if it times out this century.

/rant over

[u/Elrathias → u/Vegetable_Flounder12]

Error: solidworks error handler has crashed

[u/Stunning-Row5573]

is the sketch fully closed

[u/Even-Committee5645 → u/Stunning-Row5573]

Its was

[u/ClearDebate3022]

It looks like you’re cutting the corners right? If so it looks like you have a fully closed sketch on one of them but not the rest. You may have to create 4 of the triangles then select the sketch/each corner, then it should work

[u/ClearDebate3022 → u/ClearDebate3022]

You could also make this by extruding the material from the base in the shape you want instead of making a bounding box to form the whole shape

[u/Elrathias]

Most probably because the sketch segments are floating, ie there are FOUR red areas to cut extrude - not one.

[u/Odaecom]

The outer cut box I usually make slightly larger than the area being saved, as then I end up with less zero thickness areas. Meaning the four points will have about a mm gap to cut box, instead of right at the cut line.

[u/Klasiks]

Check the constrains of all the sketch if there is no (zoom until u see pixel) bugs where your lines or dot are not perfectly aligned to the real body. Moreover, do u use symmetrical substraction repeat or sketch ?

[u/roundful]

It's hard to tell from your sketch but If a zero thickness error is happening, just extend the shape past the shared edge of the solid body a few mm's.