3d printed parts

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pollockmarine
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3d printed parts

Post by pollockmarine » Sun Jun 17, 2018 1:47 pm

Have a question apart from the essentially castings have people had success with 3d printed bronze parts in brake hangers, motion brackets etc, also what is the shrinkage allowance given for making a pattern to cast in bronze do you need to allow percentage bigger in your master.

dorin
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Re: 3d printed parts

Post by dorin » Mon Jun 18, 2018 5:21 pm

Are you asking about 3d printed patterns for casting bronze or is there a process people are doing and printing bronze directly?
Thank you.
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Fender
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Re: 3d printed parts

Post by Fender » Mon Jun 18, 2018 5:52 pm

pollockmarine wrote:
Sun Jun 17, 2018 1:47 pm
what is the shrinkage allowance given for making a pattern to cast in bronze do you need to allow percentage bigger in your master.
The shrinkage allowance for patterns is generally about 1 - 2% depending on the metal being poured. This is in addition to any machining allowance where the casting requires machining.
Dan Watson

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Dick_Morris
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Re: 3d printed parts

Post by Dick_Morris » Mon Jun 18, 2018 8:14 pm

On Youtube, Myfordboy just posted a new video on lost PLA casting from his 3D printer. He used a hybrid mould using both investment and green sand. The metal was aluminum. It suggests what can be done with a PLA pattern.

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Adirondack
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Re: 3d printed parts

Post by Adirondack » Mon Jun 18, 2018 9:56 pm

Dick_Morris wrote:
Mon Jun 18, 2018 8:14 pm
On Youtube, Myfordboy just posted a new video on lost PLA casting from his 3D printer. He used a hybrid mould using both investment and green sand. The metal was aluminum. It suggests what can be done with a PLA pattern.
Dick, do you have a link for the video?

Thx

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DavidF
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Re: 3d printed parts

Post by DavidF » Mon Jun 18, 2018 10:01 pm

Adirondack wrote:
Mon Jun 18, 2018 9:56 pm
Dick_Morris wrote:
Mon Jun 18, 2018 8:14 pm
On Youtube, Myfordboy just posted a new video on lost PLA casting from his 3D printer. He used a hybrid mould using both investment and green sand. The metal was aluminum. It suggests what can be done with a PLA pattern.
Dick, do you have a link for the video?

Thx

ADK
https://youtu.be/HVgPM1ojyLw

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Rick
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Re: 3d printed parts

Post by Rick » Wed Jun 20, 2018 9:06 am

I haven't tried this yet, but it on my list of filaments to try for lost wax casting.

https://www.machinablewax.com/product.php?product=52
Rick

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Adirondack
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Re: 3d printed parts

Post by Adirondack » Wed Jun 20, 2018 11:58 pm

Rick wrote:
Wed Jun 20, 2018 9:06 am
I haven't tried this yet, but it on my list of filaments to try for lost wax casting.

https://www.machinablewax.com/product.php?product=52
This also looks very promising.

http://www.polymaker.com/home/polycast-info/

ADK
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