(updates: podcast link; enclosure pix)
This little CNC mill works well enough to produce an eye-candy demo video:
...and mill a fine-pitch PCB:
(nevermind the bottom-left trace of the Dremel® example where I started too deep)
Minamil: a minimal CNC mill
First there was #CDCNC, a highly-constrained just-barely-functional one-off toy built by improvisation with found junk with simple tools.
Here I'm developing an idea that came from thinking about whether or not there is any space between a dumb stunt like CDCNC and a commercially (i.e. efficiently) produced entry level CNC mill. Early results seem encouraging.
In contrast to CDCNC, this is about reproducibility from a simple BoM, economical access to laser cutting, and instructions for building your own sub-mini CNC mill.
Next there may be #"Desk Accessory" CNC Milling Machine. For progress in that direction, with not much more effort in the frame+enclosure department:
(different Z axis in those two pics - part of the not-quite-so-minimal "and friends" part of the project that I haven't written much about yet)
Telescoping axes allow the enclosure to fold up smaller when parked and expand for operation:
Selected Log Entries
- Parts source / cost notes
- milling PCB (so... MCB?)
- milling aluminum
- material removal rate (MRR) in acrylic
- uh oh... unexpected trouble with self-locking leadscrews
- how it works (could use some updates re later learning)
- compact & convenient packaging
- building blocks: the slide sub-project
- trying intentional interference -- which has worked so far
- first assembly (the eye-candy video)
- first part
- first try with XY & Z