Finally have some time to write in the build log.
Fernando (SpaceCaptain) from the Yahoo group was king to send me small samples of different resins (4 ) before the holidays. I had tested mixing them and Dymax 9663 with Castin’ Craft Transparent Amber and here are the results:
The problem I discovered is that not one of the resins was able to cure to a layer less than 0.5mm even at 0.5 seconds cure time. Either my projector is too powerful or the dye is not opaque enough. Also the Dymax did not like a high dye content – it could not cure to a solid like – only to uncured silicone consistency.
The mini VATs I cleaned by polymerizing the resin left inside with a full blast of all white and Isopropyl alcohol. No ill effects.
I did find one good thing – The 2505 burns out with only sooth left:
Before and after ( the wire is a AWG24 )
I have thought of using the used or fresh yellow (brighter one ) toner from a Xerox machine:
It did not work because it was filled with some Ferric particles and the pigment did not get distributed evenly ( they are Synthetic Wax ).
And finally some more random pics:
Hope it is of some use to you.
I had another round of the testing bug last night. I decided to play with a 5mm thick soda-lime glass base and a silicone coated microscope slide.
The results are a shapeless blob, that began as a heart from Dymax 9663 test VAT. I stuck a screw in the resin and put it on top of the heart and placed it in the light. It embedded the nail in the heart. Placed a few drops of the resin on the silicone coated slide and:
moved the heart ( blob ) up and down in 5 sec intervals.
I moved the resin around and it because of the resinophobic (new word in the dictionary – NOT! 8 google results – bummer!) nature of the silicone, the resin forms a round drop again.
I saw no ill effects from the resin, from the heat of polymerization and from cleaning with a paper towel and Isopropyl alcohol. The two defects on the silicone are my doing while trying to separate the nylon from the slide too early before the silicone is fully cured (which took 2-3 days @ room 22 degrees C ). Below are pictures of the clean slide:
The blue light caustics in the middle picture are from the Dell Shutdown screen of the projector.
More to come…
Yeah with the title I pretty much gave it away!
I had the VAT Tilt with a borosilicate glass and placed some of the Lee Filter samples.
My Heart’s On Fire!
I placed a nylon film that did not stick to silicone ( from previous posts ). Focused an image and put a few drops of resin on the slides. Placed it on the filter and slid it fast from underneath the slide. I am cooking now – there is smoke. This polymerization is an exothermic reaction. I was stunned at the sight of something forming in the resin, so much so that I let whole 20 second pass by. The result?!:
And the Grand Finale ( watch out – lots of pictures ):
That is cured resin in rubbing alcohol 97%.
There is a pin for scale that was not printed on the printer obviously!
Until we meet again…