Constraints: Where two curved lines meet

robert_wells594

I'm noticing that my circles aren't connecting straight.  Is there a constraint that I'm missing or something I should be doing to straighten this out?  Here's a link to the public workspace http://bit.ly/2cCOrOj.
 

mahir

Your workspace is view only, but I imagine you would need a tangent constraint between circles before you patterned

bradley_sauln

What you are looking for is the tangent constraint when you are sketching. The hotkey for this is "t" 
https://cad.onshape.com/help/index.htm#sketch-tools-tangent.htm?Highlight=tangent constraint

bradley_sauln

After copying your public doc and looking at the workspace it looks like a fundamental error in the sketch. The goal is to end up with both arcs created to be tangent but the way you've constrained them is preventing that. 

robert_wells594

bradley_sauln said:

After copying your public doc and looking at the workspace it looks like a fundamental error in the sketch. The goal is to end up with both arcs created to be tangent but the way you've constrained them is preventing that. 

Thanks! Any suggestions on how I should have created them?  I'm going by trial and error and learning as I go.  Sorry to ask the newbie questions.

mahir

I would start with 2 tangent semicircles positioned and constrained exactly how you want. Make sure you control the angle it takes up. For example, if you want a pattern of 10 knurls, make sure the end points are 36deg apart. Next, create a circular sketch pattern. Voila.