Build Your Own SLA/SLS

Hi everyone,
Can anyone help me? I can't figure it out.
I have 2 projectors, a vivitek D555 and an Acer, I also have 2 resins, a WIC100 from envision Tec and a B9 cherry.
My projectors can't cure B9 cherry and I have to remove the uv filter. Without a uv filter the Acer can work very well with B9 but for WIC100 it will make parts really thick.
But whatever I do with the vivitek, it will make parts thick, I calibrated and reduced the exposure time but still my parts are thick. Really thick.
Everyone who uses vivitek is happy with it but not me.
I also heard you should replace the UV filter with an IR filter, where can I find this IR filter?

How do I get some of the resins from envisontec?I would love to try them! I have no problem printing the b9 with my infocus projector on the Solus printer.

one of my friend had an envisiontec machine and I bought some of his resin. I don't know why my prints become thick. I think the problem is from vivitek.

Here are my prints with Acer:

And this is what I've gotten from vivitek:

What model number from Acer?

EV-X53
It's chinese