Introduction
This project is great for people that have already a little bit of experience with CNC milling.
As the parts are relatively long for this project, a good clamping is very important! We recommend using at least 1 clamp (or screw) every 10 cm to reduce the vibrations and enhance the quality of your surface finish.
The stand is made out of 2 identical legs, each made out of 3 parts: Long vertical - Short vertical & Horizontal.
Material
Each leg is made out of 3 pieces and thus 3 Gcodes.
Long vertical needs a 40 x 378 x 20 mm stock
Short vertical needs a 168 x 46 x 20 mm stock
Horizontal needs a 289 x 61 x 20 mm stock.
We used beech wood for our stand, but you can use any material you want for this project.
Tip: If you choose solid wood like us, you need to pay attention to the grain direction! Your grain should be parallel to the long edge of each piece you are milling. Orienting your grain in the other direction would break the structural integrity of the stand, and it would break quickly when you use it.
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End mill
Milling
Each leg is made out of 3 pieces and thus 3 G-code files are needed for each leg.
Long vertical
This piece is made out of 2 operations:
Drilling holes for the rope that will keep the two legs together and the dog bones. The spindle should be set to run between 20 000 and 25 000 rpm as the plunge feedrate is 1 000 mm/min. We use a 3 mm pecking to allow chips to be evacuated correctly.
A 2D contour will leave a 0.3 mm axial stock to leave while a “-0.1 mm” radial stock to leave will create enough play to fit the piece into “ Horizontal”. The spindle should run between 20 000 and 25 000 rpm as the feedrate is 2 000 mm/min with 3 mm passes.
Short vertical
This piece is made out of 2 operations:
Drilling holes for the dog bones. The spindle should be set to run between 20 000 and 25 000 rpm as the plunge feedrate is 1 000 mm/min. We use a 3 mm pecking to allow chips to be evacuated correctly.
A 2D contour will leave a 0.3 mm axial stock to leave while a “-0.2 mm” radial stock to leave will create enough play to fit the piece into “ Horizontal”. The spindle should run between 20 000 and 25 000 rpm as the feedrate is 2 000 mm/min with 3 mm passes.
Horizontal
This piece is made out of 2 operations:
Drilling holes for the dog bones. The spindle should be set to run between 20 000 and 25 000 rpm as the plunge feedrate is 1 000 mm/min. We use a 3 mm pecking to allow chips to be evacuated correctly.
A 2D contour will leave a 0.3 mm axial stock to leave. The spindle should run between 20 000 and 25 000 rpm as the feedrate is 2 000 mm/min with 1.5 mm passes.