Amadeal AMA280VF lathe (11" x 27")
I've bought this lathe in January 2010 to replace the Chester Conquest mini-lathe I've used for over 3 years. It's a very well built substantial (210kg) machine with a 1.2kW spindle motor and electronic variable speed control.
Mods and additions
- Quick-change tool post (QCTP): Changing the stock 4-way toolpost for a piston-type QCTP required machining of the compound slide. I'm sure you could find a way to mount it while keeping the compound slide intact, but I'm not interested in ever returning my machine to it's original state.
- Front-mount 160mm 3-jaw and 4-jaw chucks: I bought these HBM chucks from RDG Tools. Machining a backplate was pretty straightforward, although slightly complicated by the fact that the two chucks turned out to have a very different size recess (125mm on the 3-jaw vs. 65mm on the 4-jaw). I solved this by making a removable 65mm spigot that locates in the 40mm through-bore of the backplate. Having front-mounted chucks allows me to quickly change from 3-jaw to 4-jaw, and as I have a similar backplate on the 4th axis of my mill I can also quickly move work from the lathe to the mill.
- Shumatec DRO with chinese scales
- 42T and 55T change wheels: The 42T is required when cutting (approximated) imperial threads - there is no space for a 127T wheel of the same MOD2.5 as the stock change wheels, plus a 127T MOD2.5 gear costs about GBP70 at HPC gears. I found that adding the 55T changewheel allowed me to cut the imperial RMS-thread (0.8" x 36TPI, used on microscope objectives) with a pitch error less then 0.1%. Change wheels are 8mm wide and have a 14mm bore with a 3mm keyway.
- Saddle stop