# How much larger for printing?

**URL:** <https://discourse.shapr3d.com/t/how-much-larger-for-printing/21489>\
**Category:** Modeling Questions\
**Created:** [September 20, 2022, 6:32am UTC](https://discourse.shapr3d.com/t/how-much-larger-for-printing/21489 "2022-09-20T06:32:57Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Peter\_b](https://avatars.discourse-cdn.com/v4/letter/p/85f322/32.png) [@Peter\_b](https://discourse.shapr3d.com/u/Peter_b)\
**Post date:** [September 20, 2022, 6:32am UTC](https://discourse.shapr3d.com/t/how-much-larger-for-printing/21489/1 "2022-09-20T06:32:58Z")

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I need to enlarge an object to print in the correct size. What factor would that be?  
This time I can not just add 0.5mm to fit as it’s the whole object that has to be enlarged to counter printing shrink.

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**Author:** ![Peter\_b](https://avatars.discourse-cdn.com/v4/letter/p/85f322/32.png) [@Peter\_b](https://discourse.shapr3d.com/u/Peter_b)\
**Post date:** [September 23, 2022, 7:05am UTC](https://discourse.shapr3d.com/t/how-much-larger-for-printing/21489/2 "2022-09-23T07:05:27Z")

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What ratio are you enlarging your object to print against shrinking? Really dont want to reinvent the wheel here. A ratio to start from would be nice.

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**Author:** ![KPeter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/kpeter/32/7644_2.png) [@KPeter](https://discourse.shapr3d.com/u/KPeter)\
**Post date:** [September 23, 2022, 7:11am UTC](https://discourse.shapr3d.com/t/how-much-larger-for-printing/21489/3 "2022-09-23T07:11:12Z")

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Hello @Peter_b,  
The many many variables that we discussed in the topic below are still blockers for stating a uniform factor that can be applied even as a starting point.  
Please try some settings with the specific material and printer you have. That way you can collect some data to start with using the specific setup.

> [@Scale/size issue with printing model](https://discourse.shapr3d.com/t/scale-size-issue-with-printing-model/5680/19):
>
> Has this been resolved? I printed a very similar object and the radius of the hole is 11mm which should result in 22 diameter but when printed it is 21,40. 0,6 difference is quite a lot. The outer diameter is also smaller but not that much