3-d sketch_no midpoint?

John, You need a turkey sandwich or two, a large glass of milk and................ a nap :>)

There's your answer right there.

Midpoint relation in 3D sketch was *finally* added in 2006.

Matt

Thanks Matt. I can't believe I never noticed that limitation before.

I also tried out John Carroll's advice. The turkey sandwich helped a lot. The nap part will need to wait until I get the rest of my lifters modeled ( 1 down-5 to go).

jk

There are quite a number of things we are used to in 2D that are not present in 3D. 2006 has added more to the mix, but it still isn't quite stable.

I have a workaround for this. It's very cumbersome, though. It relies on parallel constraints and the principle of similar triangles. Sice I'm on a file-posting binge, I'll put it up in a little bit...

Bisect3D.SLDPRT

In the second sketch, sets of parallel lines create similar triangles that bisect the base line in the first sketch.

Thanks for that. I was thinking along those lines, but didn't go that route. I'll study this and use when I need it again.

I appreciate it.

jk

This probably wont help in the slightest, but you just never know.

Round about method to getting where you want to go. Dimension your line length ( should wind up being driven ). Right click it and select "split entities". Split the line somewhere along its length. Dimension the length of one of the two colinear lines. Select the newly created dimension, then Tools-Equations-Add- "select the driven dimension- SW will complain about the driven dimension, but click "OK". Lastly, in the equation box give it a "/2". OK your way out of the equation boxes. Now you have a point to which you can do coincident mates... ect.