1.7*0.74*0.4m Mill / Router building...

[blackburn mark]

that 4th axis looks posh, what bearings ??? stainless body??? what are you going to drive it with ??? what gearing ???

for a moment there i thought you were using a hi-tec harmonic gearbox but im gessing the hi-tec box i can see has shoes int it lol

[Jonathan]

that 4th axis looks posh, what bearings ??? stainless body??? what are you going to drive it with ??? what gearing ???

for a moment there i thought you were using a hi-tec harmonic gearbox but im gessing the hi-tec box i can see has shoes int it lol

I mentioned it somewhere else on this forum...not sure which thread though.

They're a pair of L 68149/L 68110 taper roller bearings. It's all mild steel - shows the dehumidifier is working as it's ages since I machined it. I'll use a stepper motor via timing belt to drive it since there's no way I could afford a servo. Also putting a disk brake using solenoids to hold it steady whilst milling. When I want to use it as a lathe I can put the big brushless motor on it. 6000rpm at several Kw would make a nice CNC lathe. I made it mainly to use with the milling machine, but I may well use it on the router.
I've machined the shaft to fit an 80mm chuck, same as my C3 lathe, but I'll make an adapter to put a 5" chuck on it.

Using 4th axis to make 4th axis (or should that be 5th?):

Cross section, note disk break arrangement:


Mounted on mill:

looking forward to seeing it running jonathan

You're not the only one :)

get some videos up.

Will do