I recently won several goodies off Ebay to construct my DIY CNC machine including:
- 80 ABEC-5 Skateboard Bearings - $26.00
- 3 1/4" flexible shaft couplings - $26.50
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiC-YoS2JQG6BmezfmB6-TDTLYy4CeYiaEa0vtDJ6i66e_3DtSgrlvtHncQxGjHvjtuROT9nmKoIWOIm6QWLRxtmPKZKq688sunTKMzb0O0UfWGEXHZyj2h_87VEPmGnBXJPreYsL9yvlDZ/s320/DSC_0103.JPG) |
ABEC-5 Skateboard Bearings |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiHWeoC9Cw2inOkD03dqhdo_t0Mn3YorElYqSke9uDNIIrf_KBpa3WfSCO1fqDnR6rIxhj3yz11kuCHZNAw7vzjEleEw9HP7is_N3YukUPTfV6WBdN_nvK6OH4mlEhTxEi_VO52OFMqyIEF/s320/DSC_0104.JPG) |
1/4" Flex Shaft Couplings |
Now comes the theory. I want to build a cheap yet accurate machine. I have decided to build the machine out of metal, predominately aluminum, in order to produce a rigid machine. However, I don't want to sink my teeth into a 8020 based machine with
Finelineautomation hardware.
So after scouring the internet for the last couple months I have decided to base my machine on
this instructable. Except I have some ideas to make it bigger, smoother, and more precise. Now lets just see if I can do it! Maybe I will try to draw up a CAD rendering.
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEi3ZO360goG72Wjl4hpo-SzPlBpCuYX3kdcbl_5ybS5XPEh-LQJGCUQPlRQyK1Ti0MUqNpkKUSAFnhzZ4_RoRwalCpiJBIrgzulTakHKy6lXwvvj8LbPjK6V2tlfdkv8Md3Cc8Ps82bANJX/s320/Concept.png) |
2D Conceptual Design |
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjShlinHahKBNyuiHm3aFzISp8Og5JHKi4P9Ajc9HgrLXwspki5Oroh45BfL9G1UuzLyY4AxidCQ2QRr9OdMWxCQr1Qhmyfah6AH6k8cQfkkL00v0AbcmqkPHLrt0qMYulLjkUQxlXBM3ww/s320/DSC_0073.JPG) |
Concept Mock-up |