Pulley grub screw location

[John S]

The adjustable ones are only listed in imperial sizes though.

That's gotta be a joke yes ?

Like the adjustable spanner marked out in inches one side and mm the other ?

ARC's reamers are far cheaper, Tracy wants £12 for a 3/8" reamer, ARC wants £5.70
Tracy only do metric as a set.

[Clive S]

That's gotta be a joke yes ?

Like the adjustable spanner marked out in inches one side and mm the other ?

ARC's reamers are far cheaper, Tracy wants £12 for a 3/8" reamer, ARC wants £5.70
Tracy only do metric as a set.

Yes ARC do a good service but for the record Tracy does Metric here :-http://www.tracytools.com/metric-reamers

[m_c]

That's gotta be a joke yes ?

Like the adjustable spanner marked out in inches one side and mm the other ?

ARC's reamers are far cheaper, Tracy wants £12 for a 3/8" reamer, ARC wants £5.70
Tracy only do metric as a set.

I could of maybe worded that better, but I'm sure you know what I meant.


I normally use ARC, but Tracy is handy for the more oddball stuff that ARC doesn't do, like the adjustable reamers I got last week for a bit head stock tweaking.

[booski]

That's all fairly reasonable. Not seen a 1/8 adjustable reamer yet but tempted with the 10mm.

What would be preferred though, interference fit or snug fit with grub screws?

And any more info on balancing with a scope?

My alu tube turns up soon so I can start building the spindle and once its done, ill get some pulleys.

I assume when turning shop bought pulleys its better to chuck up by the boss and not flanges?

[Jonathan]

And any more info on balancing with a scope?

Something like this:
Balancing Tool
Or you could use accelerometers...

I assume when turning shop bought pulleys its better to chuck up by the boss and not flanges?

Never hold them by the flanges - they're only pressed on and not very strong. Hold the pulley by the boss and it's sensible to check with an indicator that it's on center.