# Change Resin settings in Preform **URL:** https://forum.formlabs.com/t/change-resin-settings-in-preform/32219 **Category:** Support & Troubleshooting **Created:** [October 18, 2021, 7:11pm UTC](https://forum.formlabs.com/t/change-resin-settings-in-preform/32219 "2021-10-18T19:11:41Z") **Posts on this page:** 1 **Showing post:** 2
### Author: ![rkagerer](https://avatars.discourse-cdn.com/v4/letter/r/439d5e/32.png) [@rkagerer](https://forum.formlabs.com/u/rkagerer) #### Post date: [October 19, 2021, 10:25pm UTC](https://forum.formlabs.com/t/change-resin-settings-in-preform/32219/2 "2021-10-19T22:25:12Z")
You can create custom exposure profiles for the Form 1+ with OpenFL, but not for the Form 2. Basically you have to pick one of the stock resin settings. If you search _laser exposure power_ and likewise on the forums you can find charts people have come up with indicating the relative differences. Here are a few I’ve retained over the years: [[Album] imgur.com ![](https://i.imgur.com/IwNZFVh.png?fb "imgur.com") ](https://imgur.com/a/Vt7Agwu) Here are a couple of the posts I mentioned: > [@Resin Definitions?](http://forum.formlabs.com/t/resin-definitions/9606/6): > > I used the data above and some seat of the pants math to estimate laser values for the resins. This assumes a basic relation between the values in the chart and the laser power values (I used a percent shift as a starting point). The clear1 and grey1 settings are pretty sketchy because there isn’t enough data (I assumed a curve fit based on the two points available for clear1). Layer Ht 25 50 100 clear1 38 43 49 grey1 37 45 48 White 33 48 61 Clear2 33 49 62 Grey2 35 52 66 Black2 42 62 7… > [@Form 1 / 1+ / 2 3rd Party Resin Settings Master List](http://forum.formlabs.com/t/form-1-1-2-3rd-party-resin-settings-master-list/11312/5): > > Preface: I have no idea if this information is helpful or not, but I have it, so I will share it. I took a single part, and iterated through each different material setting and version (at the least resolution possible, usually 0.1mm except for DentalSG I think which had a default of 0.05mm and I couldn’t change it. Castable I forced from 0.05mm to 0.1mm) and wrote down the resin volume and the corresponding print time. I put these values into a seperate tab in the Master List spreadsheet ab… One other thing you can do if you need _a lot_ more exposure is duplicate the part in Preform and line up the two copies perfectly - that will produce two laser passes for each layer. --- _[View the full topic](https://forum.formlabs.com/t/change-resin-settings-in-preform/32219)._