I have an anycubic resin printer that I use to print jewelry designs that I then cast into silver using the lost wax casting process.
Is there any use for a resin printer in this hobby? Are there any printable resins out there that aren't so brittle they'll immediately explode on impact from the smallest crash?
Thanks!

Did a little looking around. It looks like Liqcreate Tough-X or Tough 1500 might be good candidates for emulating the characteristics of TPU. Very bendy which is exactly what a person wants. Just keep in mind that I've never worked with a resin printer before, so I'm merely going off of what I've learned from other materials. Bendy stuff tends to squish and flex, whereas rigid stuff tends to resist bending until it shatters or deforms.

Flexible makes sense within reason.  I'll have to try one of those out and see how tough it is.

Liqcreate is described as being similar to TPU if thin walled, but similar to ABS if thicker section. 250mL is near 50 Euros, so its not cheap!

I have two filament (Prusa and Malyan) and one SLA (Anycubic) printer.

My use of TPU has been mounts, bumpers, arm ends. Last use was transparent to allow the Nazgul Evoque LEDS to show other than green! I have black, white, flesh and transparent TPU. The resin choices seem very limited?

I'm not convinced enough to try to achieve flex on the SLA, but if you try, please inform!!

(20-Apr-2023, 09:56 PM)BadRaven Wrote: 250mL is near 50 Euros, so its not cheap!

I hadn't noticed that pricetag! Holy cow!

SLA printing is too expensive IMO unless you need highly detailed prints or perfect miniature prints. Not to mention that the whole end-to-end SLA printing process seems to be overly time consuming, messy, and highly toxic.

IMO it's probably best to just stick with FDM printing and normal TPU filament for quad related parts.

I have used Siraya Tech Tenacious resin. You can use at 100% or add to a tough resin in any ratio you want. I have used 3-4 part tough and 1 part flexible. What I found out, was over time, the prints do get harder and brittle. I have not tried it at 100% or even 50/50. If you want to keep cost down, then TPU is a good choice. If you are curious, I made a post a while back.

https://into3dp.com/Thread-Flexible-Resin

That's impressively flexible, but I guess getting brittle over time is really a deal-breaker for anything except prototyping.

(22-Apr-2023, 09:09 PM)FPVme Wrote: That's impressively flexible, but I guess getting brittle over time is really a deal-breaker for anything except prototyping.

I have tested with higher ratio of flexible resin. So the flexibility might be good over time with 100% flexible resin.