# What am I doing Wrong?

**URL:** <https://discourse.shapr3d.com/t/what-am-i-doing-wrong/36132>\
**Category:** Modeling Questions\
**Created:** [January 20, 2025, 6:43pm UTC](https://discourse.shapr3d.com/t/what-am-i-doing-wrong/36132 "2025-01-20T18:43:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Bad\_at\_Cad](https://avatars.discourse-cdn.com/v4/letter/b/a88e4f/32.png) [@Bad\_at\_Cad](https://discourse.shapr3d.com/u/Bad_at_Cad)\
**Post date:** [January 20, 2025, 6:43pm UTC](https://discourse.shapr3d.com/t/what-am-i-doing-wrong/36132/1 "2025-01-20T18:43:21Z")

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I’m coming from Tinkercad, which I need graduate from. But I can’t seem to get Shapr to do things I need it to do.

The other day, I was in sketch mode and drew a circle, and wanted to truncate the top of the circle to create the side profile of a ‘dome’ shape. I couldn’t get it to work. When I drew a line from one side of the circle to the other, it would never connect-- it either fell short or overshot, and so when I went to use the “trim” tool to get rid of the bottom part of the circle, it would delete the entire thing. I have no idea what I was doing wrong.

Issue #2-- I imported a DXF file to trace over in Shapr, and wanted to measure it first to make sure it was the correct size. I could not get the measurement tool to work, nor could I find any other way to find the size information for the shape. Also, everytime I went to trace over the design, all the original nodes would pop up, essentially covering up the actual drawing and making tracing very difficult. Is there a way to turn that off, so that just the artwork is visible and not all the nodes and handles etc?

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**Author:** ![TheBum](https://avatars.discourse-cdn.com/v4/letter/t/eada6e/32.png) [@TheBum](https://discourse.shapr3d.com/u/TheBum)\
**Post date:** [January 20, 2025, 6:57pm UTC](https://discourse.shapr3d.com/t/what-am-i-doing-wrong/36132/2 "2025-01-20T18:57:19Z")

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Make sure you’re not creating a new sketch. Select the sketch containing the circle in the left sidebar and then draw your chord line.

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**Author:** ![Bad\_at\_Cad](https://avatars.discourse-cdn.com/v4/letter/b/a88e4f/32.png) [@Bad\_at\_Cad](https://discourse.shapr3d.com/u/Bad_at_Cad)\
**Post date:** [January 20, 2025, 7:11pm UTC](https://discourse.shapr3d.com/t/what-am-i-doing-wrong/36132/3 "2025-01-20T19:11:50Z")

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ahhh, that makes sense—that’s probably what happened. Thank you!