# Locking constraints/dimensions?
**URL:** https://discourse.shapr3d.com/t/locking-constraints-dimensions/153
**Category:** Modeling Questions
**Created:** [April 26, 2016, 12:38am UTC](https://discourse.shapr3d.com/t/locking-constraints-dimensions/153 "2016-04-26T00:38:16Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@aaron22](https://discourse.shapr3d.com/u/aaron22)
#### Post date: [April 26, 2016, 12:38am UTC](https://discourse.shapr3d.com/t/locking-constraints-dimensions/153/1 "2016-04-26T00:38:16Z")
Very cool app, I’m really enjoying it so far. However, is there a way to lock down a dimension after entering it? For example, if I set a 90 deg angle and then try to set the length of the line in the sketch, the angle will change from 90 or the two lines will unjointed, etc. Am I missing something?
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### Author:  [@Shawnkirsch](https://discourse.shapr3d.com/u/Shawnkirsch)
#### Post date: [April 26, 2016, 1:23am UTC](https://discourse.shapr3d.com/t/locking-constraints-dimensions/153/2 "2016-04-26T01:23:45Z")
nope this is a bug that should be fixed. I find myself doing this a lot.
1. set an angle
2. extend or retract the end from that point.
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### Author:  [@Istvan](https://discourse.shapr3d.com/u/Istvan)
#### Post date: [April 26, 2016, 8:52am UTC](https://discourse.shapr3d.com/t/locking-constraints-dimensions/153/3 "2016-04-26T08:52:37Z")
Yes, not really a bug, but rather a missing feature, but that’s something we will have to implement soon.
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### Author:  [@aaron22](https://discourse.shapr3d.com/u/aaron22)
#### Post date: [April 27, 2016, 2:52am UTC](https://discourse.shapr3d.com/t/locking-constraints-dimensions/153/4 "2016-04-27T02:52:35Z")
Thanks for the reply. I’m really looking forward to the update!