QCTP (Quick Change Toolpost) Base
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A while back I bought a QCTP from TS Engineering<.
The QCTP is very nice, but I don't like where the toolbit is positioned
when it's put in either of the slots on the crosslide. If I put it in the
left slot, then I can't get the tailstock close enough. If I put in the
right slot, I can't get the toolbit right up close to the chuck.
I also discovered that I had to put some packing under my 1/4" toolbits
in order to get them high enough to be on center.
This baseplate solves both of these problems, by allowing the QCTP to be
positioned partway between the slots, and it raises the height of the holder slightly.
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Finished Pieces
Here are all of the pieces that will be used together. The base piece was
mostly machined using CNC. I did the countersunk portion using my drill
press, since it's easier.
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Back of baseplate
Here we can see the backside of the base. The funny shaped recess on
the right was to allow the square portion of the T-nut to fit. Since it's
on the bottom, it doesn't really matter since you can't see it.
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Dimensioned Drawing
This is a drawing of the baseplate. Also available in
PDF and
Rhino formats. This is the
G-Code that I used as well. It
uses tool change calls and expects that your software will pause to
change the tools. I used CutViewer Mill to proof the G-Code and Mach2
to control the mill.
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