Cincinnati Shaper

[Jammer]

Good, it was messing with my head.

[dallen]

heres what it looks like put together and poured

[mite5255]

Oh man that sure looks nice

[dallen]

yea it came out pretty good only major shrinkage was those two spots where I had pushed a vent wire thru the sand, there was some on the bottom but you could barely see it I didn't see it until I files the gate and little bit of flash off.

For a first time using 3D printed patterns I'd say yes to buying one of the printers if I had the extra cash laying around. I will probably repour this pattern tomorrow along with another pattern that was sent to me.

I did some more sanding on the pattern so it should pull better, plus the sand hadn't been used for a couple weeks and needed more mulling time then I allowed, I want to see if the letters will pull out cleaner then they did.

[dallen]

been in the back yard playing with the stuff.

here's some photos to keep you guys out of trouble

I was able to get the fonts to pull clean, but having a few shrinkage issues as you can see in the photos, I know what caused it just need to fix the damn problem by getting a new molder that will cut the gates deep enough.

the photos are to two separate pours that I did today.

[dallen]

I stuck the first part that I casted in the shaper this morning while everyone was in church and nipped off the bottom

[dallen]

bad half of todays pour

still having an shrinkage issue, going to stick a bigger riser in the middle of where its shrinking at I dropped the pour temp down to around 1250 which helped with the sandpaper surface finish that I was having from pouring too hot.

[dallen]

I also casted this little part for a vise.

it looks a little better with some clean up, not a lot of flash on it,

[mite5255]

When I'm casting aluminum I try to pour at around 650c thats about 1210f, I also put a shrink bob most time's regardless of what I'm casting

[dallen]

I got rid of most of the shrinkage today still have some on the small slotter base which won't be a problem the next time I cast it. The pour I did today the Fluke said I was around 1250 F I took the time to actually wait for the temp to stabilize and had to thow in some extra to cool the crucible down, had a pretty big pot full, the bigger the melt the slower you can work with it, not like pulling out a 1 or 2 pound pour which will cool off in a heartbeat.

its been pretty nice the last couple of days, so the casting has been fun with it not being blistering hot around the furnace.