# Preform...reverting the shape back to the start point

**URL:** <https://forum.formlabs.com/t/preform-reverting-the-shape-back-to-the-start-point/19583>\
**Category:** Form 2\
**Created:** [July 12, 2018, 8:24pm UTC](https://forum.formlabs.com/t/preform-reverting-the-shape-back-to-the-start-point/19583 "2018-07-12T20:24:27Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Phantom48](https://avatars.discourse-cdn.com/v4/letter/p/ebca7d/32.png) [@Phantom48](https://forum.formlabs.com/u/Phantom48)\
**Post date:** [July 12, 2018, 8:24pm UTC](https://forum.formlabs.com/t/preform-reverting-the-shape-back-to-the-start-point/19583/1 "2018-07-12T20:24:27Z")

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I have often tried to get the model in Preform back to the start point…or the point where I would automatically start the positioning and supports. I want to go from where the supports stage is back to the stage where I have scaled the model. The reason for this is to back track on a size adjustment I had scaled it too. I have noticed that after I have scaled and selected the tool to position, and support that the XYZ size changes, I am assuming that this happens when the print base is added and the supports are placed. That the XYZ changes then. Can I get back to the point where the model is at sized/scaled.

Thanks,  
Les

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**Author:** ![billb](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.formlabs.com/billb/32/5587_2.png) [@billb](https://forum.formlabs.com/u/billb)\
**Post date:** [July 15, 2018, 8:28am UTC](https://forum.formlabs.com/t/preform-reverting-the-shape-back-to-the-start-point/19583/2 "2018-07-15T08:28:41Z")

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Preform has an Undo function, but it only works if the model is unselected first.

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**Author:** ![system](https://us1.discourse-cdn.com/flex025/uploads/formlabs/original/3X/5/b/5bc2bdf993ff27c2e0eecab5010b25626fbb327a.png) [@system](https://forum.formlabs.com/u/system)\
**Post date:** [July 22, 2018, 8:28am UTC](https://forum.formlabs.com/t/preform-reverting-the-shape-back-to-the-start-point/19583/3 "2018-07-22T08:28:56Z")

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Closed on July 22, 2018, 8:28am UTC

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