[Jan Mrázek] is on a quest to make your resin 3D prints much more precise, a lot more useful, and a lot less failure susceptible. Let us commence off with his modern put up on combating resin shrinkage.
When you want a portion to have a 35 mm interior diameter, you probably have fairly excellent good reasons, and when you draw a circle in your CAD software package, you want a circle to come out in the authentic planet. Resin shrinkage can put a kink in both equally of these plans. [Jan] identifies 3 culprits: resin squeezing, resin shrinkage, and publicity bleeding. And these a few things can increase up in unforeseen means, so that you are going to get a little reference dice when you print it on its very own, but massive reference cubes when printed as a group. [Jan]’s short article comes with a check piece that’ll help you diagnose what’s heading on.
And then it gets complex! Exposure bleeding depends on your printer and the exposure, but also on the coloration and UV opacity of the resin. Shrinkage clearly depends on the resin chemistry, but also requires a couple of days to arrive at its last state as the print completely cures. Of training course, that curing fee is dependent on temperature as very well. [Jan] is just starting off to doc all the variables, but you can print out his check piece and do your own do the job as well – you will almost certainly have to anyway for the reason that of resin-to-resin variation.
While you are down this rabbit hole, test out [Jan]’s publish on viscosity outcomes and elephant’s foot. If you’re plagued by odd first layers, this is a huge resource with 1 easy takehome lesson: wait for a longer time in the commencing to permit the resin to movement in.
Regardless of whether you are just diving into resin printing, or a seasoned professional, we have a ton of exciting sources. From this article on choosing the right resin, to this on whether to use resin or FDM, you have a whole lot of reading through to do. And that is not even mentioning the gooey Hack Chat past fall with [Andrew Sink], in which equally he and the crowd dispensed substantially wisdom.