The bumps on this side of the pattern create the runners that allow the molten metal to flow into the cavity These leave large lumps on the parts that have to be removed before the parts can be machined. This can be done by grinding or, as I did, by belt sanding.
Previous Picture 52
of 52
Return
to Slide One
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
16 17 18 19 20 21 22 23 24 25 26 26A 26B
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41
42 43 44 45 46 47 48 49 50 51 52
Return to First Page of This Set