Makking patterns for a steam engine

Pattern making is an art, either by machine or traditional it is the key to success in casting.
DavidF

Re: Makking patterns for a steam engine

Post by DavidF »

Well Ive been making some more wood chips today, got a nice pile of them now. Also found this inside the chunk of wood i was spinning.
Still have a bit more to go on it but im making progress (unlike Jammer with that lathe i mailed him ) LOL couldnt resist.
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mite5255
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Re: Makking patterns for a steam engine

Post by mite5255 »

DavidF wrote: Also found this inside the chunk of wood i was spinning.
.
Nice find ;) :D
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DavidF

Re: Makking patterns for a steam engine

Post by DavidF »

and a little bit more progress, ugg yea im still saying 6 months for all the patterns and cores to be done......
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Harry
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Re: Makking patterns for a steam engine

Post by Harry »

Jammer has some great friends. Coming along on the patterns david... I can see parts in the near future.
I'd rather laugh with the sinners than cry with the saints the sinners are much more fun...
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4cylndrfury
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Re: Makking patterns for a steam engine

Post by 4cylndrfury »

Looks great. What are your plans for filetting the corners? Bondo? Wax?

If this turns out, it could be a pretty cool kit. Good luck, and keep us posted
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DavidF

Re: Makking patterns for a steam engine

Post by DavidF »

I have had good luck with fillets using 5 min epoxy, most of the fillets are there from the turning and drafted at 2'. Once I attach the flange part it will go back in the lathe and be turned down for a 1' draft on the lower part of the flange and 2' on the upper then a fillet will be added to the bottom of the flange. Still waiting on my dang end mill so I can make up the core for the opening at the packing gland. Darn holidays.
dallen
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Re: Makking patterns for a steam engine

Post by dallen »

I like wax its easier to work with to me than bondo and doesn't make the mess bondo does, you need a certain size tool grab a ball bearing if you have one the right size silver solder it to a piece od tubing.
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4cylndrfury
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Re: Makking patterns for a steam engine

Post by 4cylndrfury »

For what its worth, Ive had some success using Durhams Rock-Hard Water Putty - not as messy or smelly as bondo, and sets up faster - just mix with water to the desired consistency, and go

http://www.waterputty.com/
"Simplicity is the ultimate sophistication"
-Leonardo Di Vinci

"The future's uncertain and the end is always near...."
-Jim Morrison
DavidF

Re: Makking patterns for a steam engine

Post by DavidF »

4cylndrfury wrote:For what its worth, Ive had some success using Durhams Rock-Hard Water Putty - not as messy or smelly as bondo, and sets up faster - just mix with water to the desired consistency, and go

http://www.waterputty.com/
Hmmm, that sounds like its worth a try. Ive been looking for a "simple" filler. Is it sandable?
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Harry
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Re: Makking patterns for a steam engine

Post by Harry »

Durams is sandable but as its name implies it does get hard. As a bonus it is cheap.
I'd rather laugh with the sinners than cry with the saints the sinners are much more fun...
Muller
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