Tram the wheels
[IMG alt="Click image for larger version
Name: Screenshot from SAM_7821.MP4 - 2.png
Views: 70
Size: 712.5 KB
ID: 1394643"]https://forum.canadianwoodworking.com/filedata/fetch?id=1394643&d=1697051323&type=medium[/IMG]
Might need to work them, and not sure how much you'd need to on 350mm wheels,
on 24" wheels, that's 0.2mm.
Make the file handle thick enough, i.e impossible to turn upside down,
might need finish off with a finer file to eliminate ridges from draw filing.
[IMG alt="Click image for larger version
Name: SAM_7790.jpg
Views: 69
Size: 2.44 MB
ID: 1394644"]https://forum.canadianwoodworking.com/filedata/fetch?id=1394644&d=1697051828&type=medium[/IMG]
Length of timber to fit within chassis, needs to be wide enough to traverse w/beam across the timbers width 92mm in this case,
whilst also thick enough to clear the chassis waist .
How did I find out the tolerance in which the face of wheels needed to be?
This is how, and is what a 0.5mm discrepancy will show up.
That's about 4mm difference, dependent on where on the wheel the scribing beam is registered off.
That's some food for thought regarding the tires.
Suitable width blade, max 3/4" on my saw, so likely 1/2" would be good,
as you don't want to scuff the timber.
Using a PEN for the job, you should be able to get a trustworthy datum line
of the non-adjustable upper wheel.
Once the upper wheel datum line is scribed, then you can adjust lower wheel and motor to suit...
The latter will likely take some head scratching, cuz it'll be a flange mounted motor,
and not a foot mounted motor like on some Italian machines like on some, but not all Centauro
CO series.
One axis of the motor aligned..
you might find you can't balance the timber using the first bit o'timber suggested,
and need to find something which, again, to fit within chassis
Might need to lower the motor down also, and tighten up again
(being careful not to cinch the alloy too much)
I used an old bearing I had, as the shaft is protruding from the pulley.
Anything would work there.
Coplanar axis,
So with motor aligned to the upper wheel datum,
now you can align the lower wheel.
A north, or a south jacking screw will need to be loosened to adjust an east or a west.
and likewise, a east or a west will need loosening to adjust north or south.
Not loosening one will pinch and mar the shaft.
Those "set" bolts will be painted on some manufacturers saws,
to denote not to move them ever.
Get your lower wheel *truly, co-planar before going near east/west.
Timber registered on both sides of the wheel, trial and error, with some short strips
as seen above when using the beam to highlight the error.
Could also level yer machine beforehand and check the wheels are infact adjusted plumb.
All the best
Tom
