Hey, It’s finally here! The first in a series of reviews of castable resins for your lcd uv resin printer!
Watch the Video Here
Getting the Resin!
First, let me say, I purchased this resin from Amazon USA. It shipped from Japan however, it arrived in a damaged box, and another bottle of resin had spilled all over the box. Fedex was kind enough to wrap it in a bag, but, it was still a messy cleanup!
It has been about three weeks since I received the package, and I couldn’t wait to get started. First, I had a hard time finding the correct settings.
Castable resins print differently then do other types of harder common uv resins. Because of the casting nature, there are different materials in the resin which keeps it soft and pliable as well as toxic! Always wear gloves when handing any type of resin, but definitely while handling castable resins.
Trial and Error!
With no instructions that were readable, and no good way to read the website, since it really didn’t work well, I had to guess at the settings.
I first started with the following
5 base laters at 50 seconds exposure each
.08 mm layer height
20 seconds layer exposure
What I ended up with, was a blog of a mess, and something that resembled a frog throwing up all over my build plate and resin vat. I tweaked the settings on and off for a couple of days, and then found the ifun facebook page which let me to send them a DM and ask for help.
Whomever was on the other end, was quick to send me some information, and I quickly got to work trying the settings that they relayed to me through facebook!
These settings where,
5 base laters at 45 seconds each
.05 mm layer height
25 seconds layer exposure!
Those results where, well, a bit better, but judge for yourself!
Print your objects Vertically!
OK, so, now with most resin printers I’ve used, I’ve always printed at a 45 degree angle to eliminate layer lines as much as possible. No matter what settings I tried, at 45 degrees, my prints did not work at all. I mostly spent time changing the exposure time from 25 seconds to 28 seconds, to 30 seconds and so forth.
After many attempts, I decided to try the prints straight up, (or down in this instance) and print them completely vertically. This helped a great deal, however, I still had a variety of fails.
After examining all the prints, at this point I had a couple hand fulls of items. It was easy to see that printing vertically was good, but I needed to add twice as many supports as possible to the bottom areas of each ring. As you can see in the video.
And Good Results! At Last!
Finally, I tried something that took about nine hours to print, but worked out almost perfect. The one error I had, was my fault!
The working settings are as follows….
5 base layers, 45 seconds each!
.04 mm layer height
35 seconds for each layer exposure
Clean with IA immediately after print is complete!
This resulted in some fantastic ready to cast prints. Remember this trick however. When casting a ring especially, to add approximately 8 to 10 supports at the bottom of the ring. Castable resin, like iFun resin, is soft. It will warp if it does not have enough support. That said, it could easily bend during the printing, and cause failed prints. Keep that at the forefront of your objects when slicing the stl file.
Overall, I’m very happy. At first, (six days of fails), I was getting frustrated. However, I didn’t give up, and the results are good. I’m going to share this information on the Elegoo User Groups, as well as with iFun so they have any idea of what worked for me and my Elegoo Mars.
I hope this worked for you, and once you get your castable print ready, the last stages are just like lost wax casting.
Good luck, and Happy Printing!