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Bernd:
Nice work Al. :thumbup:

looks good for just "guesstimating" the size. real talent there. :clap:

Of course next we'll want to see the melt as it takes place, right? :D

Bernd

DaveH:

--- Quote from: Bernd on August 05, 2011, 12:57:46 PM ---Of course next we'll want to see the melt as it takes place, right? :D
Bernd

--- End quote ---

I second that :D :D :D

DaveH

doubleboost:
Very nice pattern making :clap: :clap: :clap:
Propper wood as well :bugeye: :bugeye: :bugeye:
Looking forward to see it cast :dremel:
John

CallMeAl:
Thanks all for viewing and comments.

dickda1: Yes, cast aluminum, hopefully tomorrow morning.

DaveH, Bernd : Thanks, I'll try to get a shot or two of the pour.

HS93: You guys sure take it in the **** on shipping! This one of the reasons I'm trying to do my own casting, not only the parts are expensive, but shipping costs so much and I can used the saved money to buy more tools! :thumbup:

craynerd: One of these would great for the clock work parts you have been doing lately. I plan no production, but it's sad to put so much effort into a pattern and only use it once...

doubleboost: Thanks, pattern making is almost the most difficult part of the process. A good pattern makes the casting part sort of anticlimactic. The wood used in the base of the pattern is the pallet runners that saved from when I got my mill - came all the way from China!

CallMeAl:
Well, I made the pour. I had to do it twice since the first attempt using my not so precise flask I got the drag and cope misaligned and the casting came out with a off set at the parting line. :doh: Fortunately, one good thing about casting is you can remelt you mistakes, ram up a new flask, and pour it again!

The second one was much better only a slight misalignment. I must make some better flasks. I didn't take any shots of the ram up or the actual pour, that's been shown before. I get wrapped up in the process and forget to do it anyway.

Here's what the shake out looked like:

After cleaning off the sand you can see the sprue and riser:

I'm fairly satisfied with result, not perfect, but not bad. Here it is with the sprue and riser cut off:

You can see the misalignment in this shot, nothing that can't be worked around:

The sprue was so big I thought I would try to turn it down and maybe make the motor drive pulley out of it:

If I can figure out how to hold on to this thing I will start machining it tomorrow.

Thanks for viewing.

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