Labrador Negatives

When last we saw the Labs they were getting Smurfy. The next step is creating a fiberglass mold over the silicon Smurf mold. This is an itchy and smelly layer of carcenogenic doom that a part of me always tries to believe isn’t really happening- so no pictures. If you want to see the fiberglass process look to the Gambel’s Quail file. The fiberglass mold has been created and removed from the silicon layer, and these images show the process of cutting the silicon mold along the seam/separation ridge.

I found a great alternate use for exercise bands: I attach one end to a steel shelf across the room and the other end hooks to a spring clip that pinches on the mold and pulls at the seams. I use two bands to act as two helping hands to pull the mold open. This keeps my hands out of the way of the exacto knife as I cut the seam in crisscrossing zigsags that will key back together like a big zipper and keep the molten wax from escaping the mold.

I tried two alternative mold keys (wedge & sphere shapes) that lock the silicon layer into the fiberglass, locking them together. The sitting dog had wedges, and after a little snipping and fenagaling they popped securely into their spaces! minor disaster averted, minor success logged.

The big success is another mother mold process is successful- as a disaster at this point means the entire work is lost.

Next they head to the foundry for wax pour, then I retrieve them and pull out the waxes and Chase them of seam lines and imperfections. Then I run them back to the foundry where they are cut apart and cast in bronze sections. Then I pick up the sections and grind them out and weld it all back together, then Chase the welds and etc. til they are perfect.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s