Prints wanted for casting tests

A general purpose resin tuned for 20 - 200 micron slice thickness
lswatson
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Prints wanted for casting tests

Post#1 » Fri Feb 26, 2016 7:09 am

I would like to test casting B9 Black resin, but don't want to spring for a liter to print my own models.
If anyone has models they would be willing to sacrifice, please PM so I can give you my address.
Most of my models are .5mm to .8mm thick math models.
I would like to test something similar in physical characteristics.
No class rings, chess pieces or other heavy models as they would not be a good test for my needs.
All results will be shared on the Forum. If you don't want your models photographed and posted, that would be fine, I'll just describe the result.
For my needs on this project, a bit of porosity is OK.

Alternatively, I could email STL's of a couple of my models for someone to print at 50 XY 30 Z and I could test cast those. The models would be 37mm Z or less.

Thanks in advance for any contributions.

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Robert Howle
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Re: Prints wanted for casting tests

Post#2 » Fri Feb 26, 2016 12:51 pm

I have several pieces printed in black that u can have for testing. I will print a couple of your stl files if u like .

Robert Howle

howlere@gmail.com

803-736-4441
Dance like nobody's watching!

lswatson
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Re: Prints wanted for casting tests

Post#3 » Fri Feb 26, 2016 1:02 pm

Cool! Thank you, very much!
I'll send a couple of STL's.

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Robert Howle
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Re: Prints wanted for casting tests

Post#4 » Fri Feb 26, 2016 1:05 pm

Send contact and shipping info with the files.

Robert Howle
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lswatson
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Re: Prints wanted for casting tests

Post#5 » Fri Feb 26, 2016 1:50 pm

Done.

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Robert Howle
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Re: Prints wanted for casting tests

Post#6 » Fri Feb 26, 2016 5:06 pm

Take a look tonight.

Robert Howle
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akgold
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Re: Prints wanted for casting tests

Post#7 » Sat Feb 27, 2016 3:00 pm

I have a question about black
how durable is it?
how does it cure ? do you use heat?
is it brittle or is it like hard plastic that won't break?
could you use it to make or replace hard plastic gears or
hinges like a plastic injection molded piece?
I'm so far behind I think I'm First !!

lswatson
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Re: Prints wanted for casting tests

Post#8 » Sat Feb 27, 2016 3:32 pm

I don't know about B9 Black.
MadeSolid Black, which I have printed with success, is very brittle. A friend gave me some to play with. Prints like satin.
I think they also make a resin for "structural" applications. Which might work for you.
The MakerJuice I printed was very hard and not so brittle. But cleanup is like trying to clean alien snot. I couldn't get it off the poly vats I was using at the time. No experience with alum. vats. And it stinks to high heaven. But then that was two years ago.

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Robert Howle
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Re: Prints wanted for casting tests

Post#9 » Sat Feb 27, 2016 4:20 pm

Black resin prints are done Mr. Watson. Will send Monday am, priority mail.

Tim, if u send me a file while I have the black loaded up I will print something for u.

Robert
Dance like nobody's watching!

lswatson
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Re: Prints wanted for casting tests

Post#10 » Sat Feb 27, 2016 5:27 pm

Thank you, Robert.
You're a champ.
I look forward to experimenting.
What could be more fun?

sflores@joyeriadeplata.mx
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Re: Prints wanted for casting tests

Post#11 » Sat Feb 27, 2016 8:55 pm

I do have the same question, How hard is the black resin? Can I vulcanize ANY form I may need? from thin parts to thick parts... I think I am not able to receive a sample since I am outside de U.S. that is why it is very important to me to know this information... thank you!

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akgold
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Re: Prints wanted for casting tests

Post#12 » Sat Feb 27, 2016 11:09 pm

Robert Howle wrote:Black resin prints are done Mr. Watson. Will send Monday am, priority mail.

Tim, if u send me a file while I have the black loaded up I will print something for u.

Robert


Thanks Robert
I'm so far behind I think I'm First !!

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Robert Howle
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Re: Prints wanted for casting tests

Post#13 » Sun Feb 28, 2016 5:34 pm

Yours is ready too, Mr Tim. Will get the weight and whatever for u on Monday.

My Best.
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akgold
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Re: Prints wanted for casting tests

Post#14 » Sun Feb 28, 2016 9:21 pm

Roger that
Attachments
big like 1.jpg
I'm so far behind I think I'm First !!

lswatson
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Re: Prints wanted for casting tests

Post#15 » Wed Mar 02, 2016 3:06 pm

Received the prints today, Robert.
Thank you very much.
They look great! I like the way you added supports. I get similar results without them, but need
to look at your strategy.
I have some expensive mini sprue cutters from Sweden that will cut those suckers right off flush prior to casting. I would leave them on for casting, but it would be a bear to sprue them into a tree.
The supports you saw are my printing/casting sprues.
Thanks again, I will let you know if they are "bad" enough for my project.
I probably won't pour any bronze until next week.
L

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