Hi All,
I just purchased a Delta 28-276 bansaw. Overall I’m very happy with the saw – as suggested by others in this group I replaced the blade and v-belt and the saw now passes the ‘nickel’ test and I’ve been able to resaw 6″ of koa with no problem.
One thing though… the top wheel has .012 lateral runout. It’s visible when the saw is running – the blade ‘wobbles’ toward/away from the thrust bearing when the saw is idling. Just wondering if this is worth requesting a new wheel over – or if it’s an acceptable amount of runout?
Thanks,
Chris
Replies
Dont you just hate that? It's not that bad, but it's not quite right?
You are measuring at the wheel, not the band, right? The band could move for lots of reasons, including the tire or the quality of the band weld. When I run big coarse bands, I often get that kind of behavior.
Assuming it really is the wheel, I expect a Delta to be a quality machine and if it were me, I'd probably give them a call. The problem could be the wheel, the shaft, or the bearing installation though.
Pete
Chris and Pete,
Come on guys, you are talking of 12thou or 1/3 mm runout? If it were my machine the first thing I would do (after confirming that this "runout" is not causing the machine itself to vibrate) would be to adjust the blade back onto the thrust bearing a bit, assuming that the blade joint is smooth at the back. If the blade is now running steady I would look at that wheel edge again, and if there is still some runout I would merely smooth it out by setting up a sanding block onto the edge. (Cast iron wheel, right?) Again , assuming that the wheel bearings are good and also not loose in their housings, and that the wheel is properly locked in position.
I would not bug the makers with a thing like that.
Thanks Pete and Philip,
I'm certainly not dissatisfied with the quality of the cuts - I spent the evening in the shop doing a bunch of ripping and resawing with no complaints at all. The reason I asked the question is that this is my first bandsaw and I just want to make sure the saw is functioning as it should.
Based on your comments and given the fact that I'm happy with the cuts, I've decided to put the dial indicator away and get back to simply enjoying the new machine.
Regards,
Chris
There you go Chris. Enjoy the machine. Remember that it is only as good as the blade. Seems that Timberwolf is a superior blade- folk are keen on it here in New Zealand too.Philip Marcou
Philip,Usually I'm the one telling someone to put away the indicator! You're right of course. The numbers are not important if the results are good.Pete(owner of a band saw with a lot more than 1/64th of runout and a table that's not all that flat either if you measure it)
Edited 10/14/2006 8:53 am ET by PeteBradley
Even though the wheel may be out it also travels in the same plane. The same point on the wheel does not move in and out. Because of this it is highly unlikely to have any vibration expecially if the top of the wheel is round and does not vary in roundness.
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