Beginner Question

[RufusToad]

Hi folks

I have a beginner question on how to constrain the center of a line to the center of another line and keep that way if you change the dimensions?

I am looking at cutting the bottom of a drawer and want to put a tenon in it. I want to change the length in the parametric and keep the tenon centered in the middle of the drawer bottom? I hope that make sense. Can't I just dimension the tenon OR do I have to dimension the ends as well?

[-KyleWilliams-]

Hey @RufusToad 

When constraining, in this case horizontal/vertical, if you hold the SHIFT key that should pop up the midpoint for each line.

Thanks,

[g-andresen]

Hi,

please share the file for reply

File > export >save as f3d on local drive > attach to post

günther

[davebYYPCU]

Based on that picture, 

Constrain the midpoint of the top tenon line to be vertical to the black point.

You will only need a dimension for the tenon width or the remanent width.  Both would over constrain.

Might help….

[RufusToad]

Absolutely thank you. If I change the dimensions on the total length then only 1 side will change and create the tenon to be off center. Maybe I have to dimension both ends like you see here but I would not think so?

[g-andresen]

Hi,

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Perhaps the screencast will shed some more light on the dark?

günther

[RufusToad]

Thank you so much for the help. It was the parallel constraint that got me down but you brought it to life. Thanks again for the help.

Lots more constraints than I had thought about.

[g-andresen · Accepted solution]

Hi,

most important:

horizontal/vertical > single lines & point to point

 coincident

günther