Just ABS or is PETG or something else exceptable?
To big for any of my printersā¦ and printing a large flat sheet of ABS sounds like a nightmare (for my hobbyist setup)ā¦
Definitely in agreement with Nimus that ABS at that size really sucks. Not that itās much use since Iām in Aus, but personally I can do up to 21cm x 25cm, which is a relatively āstandardā size.
Whatās the smallest feature size? Common nozzle size is 0.4mm, whereas professional printing could be laser sintered with much higher resolution.
If it didnāt come from China, Iād almost suggest a CR-10 variant, since they can print very large piecesā¦
I could print it in PLA but the bed size on my ender 3 is really only good for 20cm X 20cm. I am in Texas though so shipping might be decent. It would also be in just black PLA as that is all I have.
I hate to point out the obvious, but it looks like a part you could make with traditional machining tools, 2 hours in the workwhop and $5 worth of supplies from Home Depot.
Iād love it if someone with machine shop tools and skill could hang out a few of theseā¦ I donāt have the kit or the skills 
PETG might be possibleā¦ Iād have to check compatibility with the sterilization peopleā¦
I might have underestimated the 2 hours though: I didnāt see the many triangles on the sides. That looks like a lot of filing, particularly if the dimensional requirements are tight 
But yeah, if you have files and a drill press, thatās all you need it would seem.
By the way, if you donāt want to do it or you donāt have the tools, hit your local community college and talk to one of the teachers. Thatās usually a pretty good way of getting stuff machined on the cheap. It might not be an option with the virus this year thoughā¦
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I could check the printers at RIT but we already went home for the winter breakā¦ Ill ask some buddies still on campus.
Those triangles were only there to reduce material use and also point out the direction of the sterilization pouches.
check out 3D Print Direct (no affiliation but we use them in work) high quality and i looked ~Ā£200 each in 1 week turn around
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Why not print the individual pockets and then install them in a large flat sheet of a similar material?
You could print the pockets with a 1/2" O.D. and a slightly larger lip to keep them from falling through, and then hand drill the sheet. Press fit, maybe? Donāt know if glue is an option with your plastics though. If not, maybe you could print some OD threads, and hand tap the holes? That seems a tad excessive, but it gives you some options.
EDIT.
Disregard. I was fresh awake when I wrote this and I thought you were referring to the little pockets that look like nets which you used in the chemical baths.
I know its a pain, but could it be broken down into 9? Or 6 and reduce the size slightly? There are quite a few printers which can do 20cm x 20cm, and not that many which can do over 25cm x 25cm
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My printer can do it but I dont have abs on hand and it would take several days to get it, I do however have petg.
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Ok Iām going to cut down the size of the tray even further to 20cm x 20cm and open up some optionsā¦ I also think PETG should be ok as a material
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If you do that, Iām up for printing if still needed (seems to be a lot of people with printers here). I should be able to do ABS as well, Iāve had decent success with prints with that large of a footprint. The previous size was too large for my printers, but 200mm by 200mm is fine. I can do PETG too, if that ends up working out as a material.
EDIT: forgot to mention, Iāve got some decent ABS I payed like a dollar a roll for a while back, if you end up editing the STL to the new size, I can try a test print or two. Not worried about the material cost in that aspect, the filament was nearly free for me. Could do one in PETG as well.
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Tool making 
This is the smaller tray
titan h2o2 processing tray 3.stl (768.0 KB)
but @Satur9 is working on a print solutionā¦ but if anyone wants to contribute a tray in ABS, Iād gladly take any offers. I think the trays will not likely survive many cycles in the chamber so I may burn through some of these and eventually probably need to go titanium of some kind.
Titan temp cycling and ultrasound salt bath treatment is still going strong.
After this Iāll do a Gauss check and then suspended chem bathsā¦ Titans go into test tubes with some gnarly chems and then the tubes get suspended in the ultrasound bath and we buzz 'em again.
Finally Iāll end with a vacuum chamber salt bath cycling test to see if there is any crack or break in the titanium shell. The vacuum cycling should, in theory, pull out any remaining air in the dead space between core and titanium, then re-pressurizing under salt water should push it right into the dead space and rapidly accelerate corrosion.
If, after all that, we maintain Gauss field strengthā¦ Iād say they are safe to ship.
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We use Magnaflux to detect cracks in metal. There are cheaper systems based on the same fluorescent magnetic spray thing.
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