This week I had some time to carve a block print for Pete on our Shapeoko 2. The design was a project that he created called the Turndrawble, which is a 'turntable-esque' machine that allows the user to create variable patterns based on the postition of the pen.
Think almost high tech spirograph.
Click the link below to find out more about the project and see some really rad product shots as well as designs the machine has made!
This carving will be used as a block print for visitors to print with at this years upcoming Maker Fair Milwaukee. The settings that I used for this are listed below. As always I decided to export the file through MakerCam.
I used one follow path to separate the forms.
Tool Diameter (in) = 0.1 (two flute up-cut bit)
Target depth (in) = -0.1
safety height (in) = 0.25
stock surface(in) = 0
step down(in) = 0.03
feed rate (in/min) = 15
plunge rate (in/min) = 10
From watching the machine do its thing, this is what I have learned and what to compensated for. First things first, I knew that using a larger piece of stock it would be absolutely crucial that the bed was level.
In this case it was not.
So for the first cut, when the router would plunge 0.03 inches, in some areas of the geometry it would hardly touch the surface. Which is ok, for what we will be using this block for. The second pass would go down another 0.03 (making the bit -0.06 in below the surface of the material) which was probably more than enough to use as a block print, and would also cut down on machining time.
Well for next time now I will know.
Voila! The Turndrawble block print is ready to be inked and printed!
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