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Stock From Preceding Setup - Defining Origin

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Message 1 of 3
redmond.limited
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Stock From Preceding Setup - Defining Origin

Hello,

 

In the attached, I have carried out a number of machining operations in a first setup, titled, "Top Side Machining 1st Block".

I have then created a second setup, titled, "Top Side Machining 2nd Block", using mode, "From preceding setup" with "Continue Rest Machining" ticked:

redmondlimited_0-1710797633255.png

My question is about setting the WCS origin.

When I select this second setup in the browser, it shoes me what the stock, generated by the previous machining operations, looks like.  I would like to select a corner of this stock (see below) as the origin for my WCS in the 2nd setup:

redmondlimited_1-1710797929595.png

However, when I edit the stock, so that I can select this point as the origin, it no longer shows me this and shows me this, instead:

redmondlimited_2-1710798024909.png

and I can't select the point I want to for my stock.

 

Can anybody offer any advice, please?

 

As ever, I would be very grateful for any comments at all.

 

The file is attached. 

 

Thanks,

 

Clem.

2 REPLIES 2
Message 2 of 3

Hi, 

You can only really select box points from a bounding box that contained the original stock.

 

IMO Picking up on rough machined stock for subsequent operations is bad practice anyway as there is no guarantees its actually accurate.

 

What I would do here is machine a "Witness" at known location. 

I drew a sketch on the corner of the model that is 0.2mm away from the model edges, then in the first setup, I machine that corner.

 

For the second setup you can pick the corner of your sketch as the Origin for your WCS

 

alaasW8M6T_0-1710801472483.png

 

see attached

 

 

Message 3 of 3

Thank you very much for your advice.  As always, it is very helpful and has answered my question.

 

Thank you, once again.

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