“Percentage grades make it possible to differentiate between good work and excellent work more precisely than vague descriptors such as ‘emerging’ and ‘developing,”
This is a dumb take. No one in grade k-9 needs more specificity than the four labels coupled with teacher input. I suspect the people who are against this change are simply against change.
I’m a parent too and I agree with you for the most part. I’m woefully under qualified for this job and I’m very grateful for the professionals and other adults in my youth’s lives. We’re very much missing the ‘village’ part of raising kids.
I guess not. I just went to their site out of curiosity. I couldn’t find any policy statements. Just a vague mission statement type thing.
Update: they have a policy document from 2021 under their ‘governing documents’ heading on the website. The document doesn’t address this issue at all.
Reducing the time won’t help with adhesion to the build plate but an overexposed layer might make the following layer less likely to adhere correctly. I always do 25sec on my bottom layers and never have adhesion problems so I figured it could work for you too.
I’m not 100% sure because I’m fairly new as well but I’d try going with 25 seconds for the bottom layers and adding a bit of wait time before lifting.
It looks like your bottom layers did fine but maybe the normal layers didn’t adhere properly to the bottom layers. That could explain why you had some sticking to the FEP.
I’d also make sure the FEP sheet is is good shape. No big scratches or dents.
Check out Formlabs resin printers. They have special resins that may do what you need. They also have sales people on staff to walk you through everything.
They’re pretty pricey for a hobbyist (at least for this hobbyist) but a business may be ok with it.
Everything I found said that cured resin is inert. I did see that there are biocompatible resins out there but they seem to be mostly used in dental applications. I’ll keep searching though.