posts tagged with the keyword ‘wax’

2019.04.01

wax-mold-00

I’ve been experimenting with casting for the last year or so and typically my “experiments” come out terrible, mainly because I try weird things, but sometimes I sort of get it right…

This time I made a silicone mold of a model of a glue stick for a hot glue gun and it mostly worked fine. I modeled a glue stick and tall cylindrical container for it using OpenSCAD and then 3D printed the two pieces. The idea being I’d place the “stick” into the container and then pour silicone in to create the mold.

wax-mold-01

I had a small amount of silicone we were going to throw out at work because it wasn’t enough to do anything useful with, and it was just enough after scraping everything out of the two containers and mixing it together.

wax-mold-02

Once again I had to destroy the original mold master to get the mold out, but since it was printed using PLA I just smacked it with a hammer a few times and peeled away the plastic to get the silicone mold out in good condition.

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I could not find the cheap little cooking pot I bought a Goodwill a few years ago for melting things so I grabbed an old metal can, made a makeshift gaff tape handle, and melted down some old candle wax to pour into the mold.

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Hey, it worked! A wax stick the same size as a glue stick you would use in a hot glue gun. ;)

Oh, see those rubber bands? They hold the mold together because I split it down the side to allow for getting the wax out of the mold. I may have wrapped the mold too tight or not aligned properly because the first stick wasn’t totally straight.

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Here’s the second one… much better. You can see the split in the mold. I just ran an X-ACTO blade down the sides to split it.

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Now, to ramp up production I may need to make a lot more molds, or come up with an alternative. Here’s a method using a metal tube and parchment paper that might work. Honestly I think I prefer silicone molds but this might be a good way to get really long sticks.

wax-mold-06

The next part of this experiment requires a hot glue gun, and most likely, disassembling it for the heating element. Stay Tuned!

2014.09.25

Wax Ring

The folks from Solidscape dropped by the DCRL at UWM to talk about their 3D printers that can print with wax. These are typically used in the jewelry industry for lost wax casting, but also used in the medical, dental and engineering fields.

Wax Ring

The resolution of the prints was simply amazing. They’ve also got some unique things that their printers do, like milling the build plate flat before each print.

Wax Ring

Their machines are not cheap, starting at $25,000 and going up to $55,000, but the quality is pretty amazing, and depending on your needs, that price may be cheap.

Wax Turbine

Obviously lost wax casting in metal is a prime use of these pieces, but there were a lot of other applications mentioned, including multiple methods of creating silicone molds.

Wax Turbine

The details was pretty amazing, and not even in the same ballpark as what I’ve seem from any FDM printer. If you get a chance to see the output from a Solidscape printer, do it. It’s pretty impressive!

Wax Head

Wax Head

Wax Tire

Wax Tire

Note: Frankie has better photos and more info!

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