Extrude resolving the wrong direction

[greg.livermore]

Hi,

Unable to find this issue elsewhere... 

When I extrude a body and select "join" the preview is correct. When I press OK, it extrudes in the opposite direction. 

When I delete the other body, the extrude still resolves in the wrong direction. 

Attached is the file and a video of the problem. 

Regards,

Greg

[TheCADWhisperer]

@greg.livermore 

Are there any unresolved issues highlighted in your Timeline?

[jhackney1972]

In your example, the Extrude directional arrow is pointing toward the side you want, down, but you are entering a Extrude Distance Value of -.5mm so it will extrude in the opposite direction.  If the arrow points in the direction you want, the Distance value will be positive not negative.

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[greg.livermore · Accepted solution]

Hi All,

Thanks for the replies. 

There were unresolved issues, but sorting them out did not help. 

The arrows point UP, on selecting the surface, so the negative value seemed correct. When I enter the -5mm value, the arrow direction changes direction as you can see on the video/screenshot. The extrude is correct up until the OK button is pressed and then it changes orientation. 

However, I did keep looking and found THIN EXTRUDE, which was a way around the issue I have attached a video for any other newbs that get stuck!

Kind Regards,

Greg