It’s a simple design, but I can’t seem to get the lines to connect with the circles in order to create an extrudable body. What do I need to do next?
Thanks,
Mark
Just make the lines coincidence and tangent to the circles.
Don’t do like that. This is your circle and line above it.
From the bottom of the circle line event not intersect with the circle
I don’t know how you achieved this horrible result but here is how it should be done.
Got it! Thanks for the replies. I moved both ends of both lines until the “intersection” comment popped up and that did it.
Mark
Well if we had Sketch Fillet and Fillet Full Round for extruded model this wouldn’t happen. 
Missing basic features.
This will happen anyway.
If a person doesn’t pay attention to things like constraints, fillets won’t help at all.
Even if in this particular case it would solve the issue, a similar problem will immediately appear elsewhere.
P.S. I’m not against the fillet function in sketches at all — quite the opposite, I actually support it.
Well you will never know, those 2 basic tools is missing (REALLY BASIC, why missing I have no idea), could have been utilized first given option to be used.
Draw 2 circles, box, and constraint. (Had a giggle in shapr the need to do this 
I don’t even do this in Freecad. )
or
Just rectangle, sketch fillet 4 corners.
Or better yet rectangle 2 sides full round fillet.
1 Like
I know that very good. I came from Fusion360 and still use it from time to time, so I know how many basic things are missing in Shapr3D.