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Re: 3D Printed Patterns and Sand Casting

Posted: Thu Nov 07, 2019 7:00 pm
by NP317
'Must be cross between a lion and a gondola...? :shock:
RN

Re: 3D Printed Patterns and Sand Casting

Posted: Wed Dec 23, 2020 11:34 am
by steamingdon
Hopefully frank will post some pictures of the finished product before I pass on. Never did get an answer on the Ligan ( LOGAN ) I`m pretty sure . All done with the dome and installed on engine.

Re: 3D Printed Patterns and Sand Casting

Posted: Thu Dec 24, 2020 10:02 pm
by FKreider
Here are the pictures that Don mentioned. The final part came out excellent after machining and polishing! Cant wait to see this engine finished!
thumbnail_IMG_5610.jpg
thumbnail_IMG_5609.jpg
thumbnail_IMG_5611.jpg

Re: 3D Printed Patterns and Sand Casting

Posted: Sat Jan 02, 2021 10:45 am
by steamingdon
not much interest here, that`s for sure !

Re: 3D Printed Patterns and Sand Casting

Posted: Fri Oct 08, 2021 11:28 pm
by Adirondack
steamingdon wrote: Sat Jan 02, 2021 10:45 am not much interest here, that`s for sure !
Well I like it!

Chris

Re: 3D Printed Patterns and Sand Casting

Posted: Wed Oct 13, 2021 4:47 am
by ChipsAhoy
mihit wrote: Mon Oct 07, 2019 12:54 am So this is done for cope/drag greensand casting?
I have wondered about 3D printing for "lost wax/foam" type casts. Haven't had much to do with it.
Nice work though, piece looks good.
Like this? Shoukd be a BIG time saver!
https://www.amazon.com/Polymaker-PolyCa ... B07J678V8C
Scotty

Re: 3D Printed Patterns and Sand Casting

Posted: Thu Oct 14, 2021 8:08 pm
by FKreider
ChipsAhoy wrote: Wed Oct 13, 2021 4:47 am
mihit wrote: Mon Oct 07, 2019 12:54 am So this is done for cope/drag greensand casting?
I have wondered about 3D printing for "lost wax/foam" type casts. Haven't had much to do with it.
Nice work though, piece looks good.
Like this? Shoukd be a BIG time saver!
https://www.amazon.com/Polymaker-PolyCa ... B07J678V8C
Scotty
I do both investment and sand casting. I can sand cast nonferrous metals at home but the investment casting I make the master pattern and then contract the work out.

The wax is kind of the easy part of investment casting - getting the wax in the investment and having vaccum casting equipment large enough for 1.5" live steam parts is kind of the hard part.

Re: 3D Printed Patterns and Sand Casting

Posted: Sat Oct 16, 2021 8:21 am
by jscarmozza
Frank, how did you machine the saddle to fit the boiler?
John

Re: 3D Printed Patterns and Sand Casting

Posted: Thu Dec 16, 2021 10:50 am
by steamingdon
HE Didn`t , I did.

Re: 3D Printed Patterns and Sand Casting

Posted: Thu Dec 16, 2021 6:45 pm
by jscarmozza
I tried cutting the saddle on a lathe and in a milling machine, but holding the dome securely is the problem, how did you secure it? I made a few practice domes to hone my skill for the real thing when the time comes...I had the domes come flying out of the mount, not good for the tool, machine or operator!

Re: 3D Printed Patterns and Sand Casting

Posted: Sat Apr 02, 2022 7:01 pm
by steamingdon
tied it down through the center