# FormLabs clear resin is castable with very little thermal expansion defects

**URL:** https://forum.formlabs.com/t/formlabs-clear-resin-is-castable-with-very-little-thermal-expansion-defects/756
**Category:** Projects & Prints
**Created:** [January 8, 2014, 1:59am UTC](https://forum.formlabs.com/t/formlabs-clear-resin-is-castable-with-very-little-thermal-expansion-defects/756 "2014-01-08T01:59:42Z")
**Posts on this page:** 1
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### Author: ![DonThongie](https://avatars.discourse-cdn.com/v4/letter/d/e8c25b/32.png) [@DonThongie](https://forum.formlabs.com/u/DonThongie)
#### Post date: [January 8, 2014, 1:59am UTC](https://forum.formlabs.com/t/formlabs-clear-resin-is-castable-with-very-little-thermal-expansion-defects/756/1 "2014-01-08T01:59:42Z")

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I have done some in-house experiments with the clear resin.&nbsp; The last I tried was to remove the ashes residue from the investment then casted.&nbsp; The result was quite clear to me that the surface of the ring I casted was good, only build lines were visible. “ It’s a simple ring “.&nbsp; I’m convinced now that much more complex jewelry pieces can be achieved this way until such time FormLabs team release the new direct casting resin.

A) The ring was built at 100 microns layer with 2 rods on both sides extend to base for removing ashes.

B) 12 hours burnout cycle with 2 hrs max hold at 800 C.&nbsp; Then Leave to cool down completely.

C) Suck and blow the ashes out using a silicon tube.

D) Put back into the oven and run a 5 hrs burnout cycle as you would do with wax and cast.

Just a thought of sharing this experiment with jeweller folks like me who use Form1 printer for their jewellery production. &nbsp;I also wish to extend credits to Monger Designs for the amazing efforts in the forum in-search of direct casting resin.

![](https://support.formlabs.com/attachments/token/yo7devuocmhxjmf/?name=image-1.jpeg)

![](https://support.formlabs.com/attachments/token/vib7hjrdyt1iw5m/?name=image-3.jpeg)

![](https://support.formlabs.com/attachments/token/sh1nyldbjlg5tzi/?name=photo.JPG)

![](https://support.formlabs.com/attachments/token/nrtumgicoadhbpz/?name=image-4.jpeg)

![](https://support.formlabs.com/attachments/token/zly9964tyk4a2yn/?name=photo+2.JPG)

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