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Try a slightly higher exposure, underexposure seems popular, but it also looses details and causes failures. I would boost that all the way up to 12s exposure, then dial it down if you don't like the look.

More supports or heavier supports.

Use exposure Test Tool to find optimal exposure

I use 11s normal, 90s bottom and 8 bottom layers für elegoo Grey

I would say definitely more bottom layers. I think from memory I also use 8 bottom layers.

Looks like your supports failed. I also agree that you should have some extra bottom layers and maybe slightly higher exposure time.

Increase support contact depth

Likely the file is broken in some way and it won't let you cut across a bunch of "layers" inside the wall. It's easier to use 3D Builder to repair files and cut holes in things.

Reference:
https://youtu.be/R7mFeK47pAI

Hollow in meshmixer.

that helps a ton!

Tc here is a button for it nearby the top tool bar right.

Make hole command.

Sometimes it's a bit choosy about where the hole goes, just fiddle with sizes and depths till it works

Check and make sure you the same exact settings on each version of chitu

Well I think I found the problem! Resin leaked all over my screen. Soaked in denatured alcohol for a few minutes then took a razor scraper to it carefully.
Fep didn't show signs of leaking through a water test but I'm not taking chances. Replaced It.

I had similar this week. Prints started sticking suddenly and found resin had creeped under. Cleaned it all and retried but had the same issue.

Got new FEP, tried that and resolved it straight away.

Ya my prints came out a ton better. Print failed today. Gonna post about it. Supported elbow didn't print propperly

I use elegoo grey for everything. Settings: 8 base layers with 60 second exposure; 9 second normal exposure; 0.4 layer height. Printers vary, so you may need to do some additional tweaking depending on how your prints come out; feel free to post pictures and people can help you determine if you need more/less exposure, layer height adjustment, etc.

I've been printing for a while and my prints recently have been coming out poor. Seeing if tweaking my settings will help.

I use 3 base layers at 60 seconds with 8 second layers after that. .05 mm layer heights

Unfortunately there isn't a "hack" to make prints go faster. I would say 8s is the minimum before prints start failing

Orientation can speed it up. Figure out your supports for laying the parts or print more vertical to reduce time. The taller it is the longer it takes to print. You can also shave a bit off time by increasing lift and/or lower speeds of your plate. At the cost of detail quality you can also increase your layer height slightly but sometimes layer height vs layer exposure time doesnt save much time.

Cool print. What model is that ?

Ciprian Grecea https://www.myminifactory.com/....../3d-print-delani......

Ciprian Grecea

Jon Hammersley That looks awesome