Casting fun at the Northpine Trades Guilde

[jirvin_4505]

Casting brass valve bodies for ME beam engine​

Following from the shared link that Jason posted of lost resin prints investment casting we had a little go at doing our own part in the foundry

Very roughbut I would say encouraging

It’s a body for valve on the ME beam engine that my mate Greg is building







Enjoy
Cheers Jeff

 

[jirvin_4505]

Casting fun making parts for the Rider Erickson hot air model engine
(Catching up on my videos)

Some times you have a learning curve

Local modeller did 3d drawings and printed parts and we have been having fun casting parts
Failed foot


Some success


Another failure. This one was easy to rectify



Enjoy
Cheers Jeff

 

[jirvin_4505]

More Erickson Rider parts
It’s a very iterative process getting the patterns and Molding working
Baseplate


Bellcrank - after seeing the discussion in the Erickson build we will add a core to the horse shoe part


Enjoy
Cheers Jeff

 

[GreenTwin]

It is great to see someone making their own castings.
Its a bit tricky to get the method(s) down, but once you do, you can make some great castings.
Those are respectable casting you have made.
I learn a bit more about foundry work with every video I watch.
Brass has always been a nightmare for me to try and cast, with the zinc boiling off, and trying to get to a decent pour temperature before all the zinc burns off.
Someone said try a glass cover with brass.
I hope to make a bronze alloy, and avoid brass altogether.

.

 

[jirvin_4505]

It is great to see someone making their own castings.

Brass has always been a nightmare for me to try and cast, with the zinc boiling off, and trying to get to a decent pour temperature before all the zinc burns off.
Someone said try a glass cover with brass.
I hope to make a bronze allow, and avoid brass altogether.

.

Thanks for the support - always enjoy your comments

Yes the zinc burn off is problematic. We put charcoal from a bit of burning wood on top of the molten brass whilst in the furnace

 

[Aussie_Novice_64]

Hi Jeff, good to see a local on the forum. I've visited your shed there a few times. Very interesting place.
Good to see you having some success.

 

[gadabout]

I’ve been there a few times also! Great place to visit.