Remove the wobble-wobble!

  • Advertise with us

« back to Woodworking Skill Share forum

Forum topic by Live4Brew posted 11-17-2010 06:33 AM 1347 views 1 time favorited 2 replies Add to Favorites Watch
View Live4Brew's profile


42 posts in 2997 days

11-17-2010 06:33 AM

Topic tags/keywords: truing arbor flange runnout runout run out trueing table saw wobble

Ok folks,

I just recently rebuilt a 1959 Unisaw (new bearings/link belt/motor/cleaning/etc), but the blade had as much wobble as my old Craftsman contractor saw and it was driving me nuts.

I checked the arbor for run-out using a dial indicator. It wasn’t too too bad in the .003ish range at the flange. My cuts didn’t look as perfect as I wanted though. So after much research as to the best method for truing the arbor, I came upon this:

I also came upon someone talking about truing the arbor flange here:

My flange was HORRIBLE. Someone had WAY overtightened the arbor nut and warped the flange. This was fixed as described in the second article supra. It took me quite a while to sand the flange flat, but well worth the trouble.

Truing the arbor was quite easy and fun to do. I just busted a piece of carbide off an old Freud blade that was collecting rust, locked it in some vicegrips, and sharpened it a bit with my Spyderco fine ceramic. Once I tilted the saw to 45 and raised the arbor to its highest position, I just very lightly touched the carbide tip against the arbor face while the saw was running (and blade removed!) (using lots of overhead lighting to see what I was doing) and milled it down till all high spots had been removed (I kept turning the saw off to see the progress).

Folks, I know you’ve probably looked into this before – I just wanted to write and say that it’s well worth the effort. My blade has zero wobble in it now and I see virtually no saw marks on my wood.

Seriously, give it a shot, you won’t be disappointed!

2 replies so far

View bobkberg's profile


439 posts in 3038 days

#1 posted 01-03-2011 10:35 PM

Great information! Thanks very much for sharing it.

-- Bob - A sideline, not how I earn a living

View PurpLev's profile


8534 posts in 3613 days

#2 posted 01-03-2011 10:45 PM

good find! I wouldn’t think of the flange.

FYI, 0.003 arbor runout seems excessive to me – good call on machining it down.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics