I did the majority of my project with CNC. I bought a 6040 CNC router when I started the ribs. I had a local place CNC cut a plexiglass jig as my router wasn't big enough. The local place was happy to do the plexiglass jig. I know another place that will CNC laser cut 4x12 sheets of aluminum no problem. I'm not sure why the holes need to be punched.
I did all the small plexiglass parts and all the wood rib parts. For sure my ribs were accurate because of the CNC. Putting the rib jig together was just a matter of assembling the parts in the pre drilled holes.
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I also had all the metal parts CNC laser cut locally. My CNC router can't cut 4130 steel. All of the stuff I outsourced was from the DXF files I supplied. They did the conversion to gcode and optimized the parts on the material I supplied. The cost was a few $ per part. Money well spent.
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I recently learned how to cut Aluminum with my CNC router.
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The parts I did myself were converted to from dxf to gcode with some software I purchased (~$150). For sure adding a CNC router to your inventory of tools adds another level of skills needed to complete a project whether it's DIY or outsourced. For me, the $2G I spent on the CNC router and learning to use it was time and money well spent.
As mentioned most of the kits are already done with CNC. I think it's a good idea to start sharing CNC code for plans built projects. Sky's the limit when you put your mind to it.
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