| The Shop > Metal Stuff |
| Slowly casting up parts for a steam twin marine engine |
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| Artie:
--- Quote from: bogstandard on November 09, 2010, 03:24:39 AM --- --- End quote --- I see a resemblance....... NOT! :) |
| Bogstandard:
That is why I picked up on it Rob. Normal flat sided crank plates are no problem, it is when they are shaped like these that problems occur. If it will work on a bigg'un, a littl'un should be easy. Bogs |
| Artie:
A couple of posts back I said I had "ingotted up this lot"... and then promptly forgot to put in the relevant pic... ere we go...... :worthless: Im down to 4 sticks left.... must do another run...its all 6061 and I ahve about 150 kg in its natural state..... Base plate tomorrow morning... I promise.... (yeah right)..... |
| Artie:
Got the casting done today..... turned out to be much more difficult than I imagined... due to its large surface area, In fact this is the biggest casting I have ever done in a closed mold. The flask was my big one and relatively thin and the plate took up almost the entire surface area. The thing had to be rammed on a base plate and this used to turn the cope over added the drag and then rammed it all up. Again using the base plate (flat board under the flask) to put the flask on its side and seperated the cope and drag and did all prep work with them on their sides.... damned awkward... As a result I got a fair few inclusions (or bulging aluminium where cavities formed... given the difficulty and the fact that this part will be painted... Ive decided to accept what I have... Its no Rob Wilson job.... but then neither am I.. :) :D :) :D if you havent alrady, have a look at his thread A Bit of Casting, hes doing amazing things! http://madmodder.net/index.php?topic=3841.0 Anyway here it is..... Cheers all Rob :beer: |
| sbwhart:
Looks good to go to me. :thumbup: Well Done Stew |
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