Monthly Tech-Tip | No tracking! No ads! |
The centre one is M370 + 10% raw umber - leather hard out of the mold. The other two are fired at cone 6. Comparing the lengths of these two enables calculating the total shrinkage (drying and firing). I can use that to modify the parameters in the drawing. These fired tests were critical to adjusting the hole diameter and pad size - both were inadequate in the early design (notice, on the right, how the 9/64" leather hard size hole is breaking the pad when the wire mechanism rotates (because it inserts not quite perpendicular). Notice the pad is also too small. However, the hole being 21mm down from the rim is good, the mechanism is locking well.
Projects |
Beer Bottle Master Mold via 3D Printing
A project that took several years of failures and blind allies and is finally coming together - so much simpler than expected! |
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