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Threads - the sweep way

iain_downsiain_downs Member Posts: 38 ✭✭
There's something about creating threads with a profile and a sweep which is escaping me.  Sometimes it seems to work and sometimes it doesn't.  In this part studio I have one which works and one which doesn't.

The one which does work (cleverly called sweep 1)  started to work after I'd messed around with a number of the features, but I'm not sure what I did that made it work.    Sweep 2 doesn't work and as far as I can see I am doing the same things..

In passing error messages would benefit from a bit more detail.  the one here amounts to, 'it didn't work'.

Also, in passing, I could have used the new thread feature on this, but it seems to be limited to the pitches you can specify, certainly at a diameter around 40mm.

Many thanks in advance!

Iain

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    eric_pestyeric_pesty Member Posts: 1,493 PRO
    My first thought is that unless you need something really weird that the Threadlabs feature can't handle, I would use that rather than manually creating the sweeps...

    I had a look and I'm not quite sure why it fails, even when set to "new" the sweep fails. I was able to get it to work by placing the profile sketch on the front plane instead (so that the profile is at the start of the helix). It shouldn't be necessary in Onshape but I guess it can help sometimes!

    Might be worth reporting as it could be a bug...

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