Re: changes to 5 axis machine
- Hi Rab,
What size steppers did you use on the X Y & Z axis on your gantry router?
--- In CNC_Toolkit@yahoogroups.com, "rainnea" <yahoo@r...> wrote:
> Hi Colin,
> Good questions,
> I'm assuming you're talking about the gantry router -
> For the B/C axes I used 270oz/in size 23 steppers they would be ok
> with more gearing 5.5:1 is too low, somewhere between 30 and 60 to
> 1 would be fine.
> I was stalling cutting plywood with a 60 degree 3-flute engraving
> cutter at about ¼" cut depth. I think it would have been fine for
> cutting foam.
> Having the spindle in line with the C-pivot would have advantages at
> the expense of being slightly less compact.
> I'm not sure that I'd change very much on that machine given the
> same budget and access to surplus parts.
> Building from scratch with a more flexible budget I'd use harmonic
> gears on the B/C head, servos all round and would consider belt
> drives for the linear axes.
> I'd definitely use an industrial spindle rather than a router.
- 2 x size34 - 200oz/in on X
size34 - 700oz/in on Y
size23 - 270 oz/in on Z
mostly because they were what I had to hand at the time - although
they work ok, X and Z are a bit underpowered and Y may be a bit
-- In CNC_Toolkit@yahoogroups.com, "cdoughtynz" <cdoughty@p...> wrote:
> Hi Rab,
> What size steppers did you use on the X Y & Z axis on your gantry