We have been donated a Isel GFM4433 CNC router/engraver.
- ISEL GFM 4433
- ISEL IFM4
- Ferm FBF-6E -- basically the spindle from a £35 Ferm plunge router.
- 6mm collet
Mikes random notes
- more flutes, the stronger the tool (typically 2, 3, or 4), but more likely to clog, which can cause snapping
- runout of the spindle is the amount of excentricity (wobble) in it: http://www.precisebits.com/tutorials/spindle_runout.htm