Week 7: Molding and casting


In a nutshell this week's ride:


Molding and casting

I tried using the modela first but it was not my week with this machine. From what I heard from other section mates there was a miss adjustment in the machine. So time for looking for an alternative. The shopbot it is.

Traces
TableAssembly

I saved the file and opened it in the shopbot Vcarvepro software. First step there is to set the dimensions of the plywood sheet. Revised the fillets and closed vectors. A heads up, when exporting from Solidworks, sometime there are lines that are repeated several times and that was causing an error window to pop up.

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For some reason, even after zeroeing the machine, the route was not starting at "0". We had to play the machine a little bit so that it started at the correct point. As you can see in the photograph my mold suffered this inconvenient. But I believe is good enough to proceed for this week's assignment.

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I ran into a defect with my first mold/cast. It seems I did not have enough volume of smooth-on on top of the casting what resulted in and orifice in my casted part.

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After milling a negative mold again, seemed that I was good to go and avoid that problem. Let's see.

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Yes, it worked! De molding was not complicated at all.

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And here it is, my phone holder!

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