tangent line with circles

chenken_lupi

Hello,

I'm trying to add a line that is tangent to 2 circles on my 2D sketch.  Needs to start at tangent of one circle and go beyond tangent of second circle.

LuPi

3dcad

Draw circles and then let the line snap to those. Click show constraints and check if there is tangent constraint, if not click line and circle and then click tangent constraint icon.

This is shown in videos at onshape.com - check them out.

Darren_A_Henry

You can capture some of the constraints while you sketch.  Start by drawing a line that is coincident to one circle, and you can pick up a coincident&tangent relationship on the second circle.  I use click-drag when drawing these types of lines.  It will draw one segment at a time.

Then go back an add the first tangency manually.  I use a crossing select window a lot to quickly pick two entities.

See the included animated GIF.

chenken_lupi

I made mythril engine publik.  I may have figured out that, but I'm not sure I am using snap function properly.

https://cad.onshape.com/documents/3fadf23bd6a84114bb73f1f5/w/f859dd0ac40f43a6821382bf/e/103a1f52151341d785cba72f

3dcad

For me it looks like you have it covered, just tick 'Show constraints' and hover over icons to see which geometry it belongs to..