LumberJocks

trading one set of problems for another

  • Advertise with us

« back to Power Tools, Hardware and Accessories forum

Forum topic by madcitymike posted 05-18-2012 03:11 AM 908 views 0 times favorited 7 replies Add to Favorites Watch
View madcitymike's profile

madcitymike

4 posts in 1671 days


05-18-2012 03:11 AM

I just purchased the Vega Pro 40 to replace the stock fence on my Delta contractors saw.
After installing, I set it up just like I always have with the “Align-It” gauge.
The face of the fence is very flat.
For some reason I had the idea I should check the fence alignment with the miter slot
at random spots across the table.That ruined my day. I can align the fence bar parallel
with the miter slot at any given spot, but when the fence is moved off that spot it is no longer parallel
to the slot. Over an 18 inch span (this requires referencing both miter slots) I’m getting anywhere from
+.008 to -.018. Thats a swing of .026 overall. Any ideas as to what is going on here?

Mike


7 replies so far

View Cato's profile

Cato

693 posts in 2777 days


#1 posted 05-18-2012 01:09 PM

Hmm, could it be your rails not mounted at a consistent distance across their span from the saw?

View madcitymike's profile

madcitymike

4 posts in 1671 days


#2 posted 05-18-2012 03:40 PM

Thanks for the suggestion Cato. Correct me if I’m wrong, but once the fence is set parallel to the slot, I think it should remain parallel even if the front rail is not perfectly at 90 to the slot. Whatever that angle turns out to be when you’re doing your initial set-up, shouldn’t it remain constant across the lenth of the front rail?

View Cato's profile

Cato

693 posts in 2777 days


#3 posted 05-18-2012 03:48 PM

Mike just might be worth checking, as I am not sure what else could throw it off but the rail or tube maybe having some play because something is not tightned down all the way.

Also you could check to make sure that the pads that lock your fence tight are locking consistently. Some people will have them too tight or too loose so that the fence jumps a little as it locks down. I could see this also as a possibility.

View Grandpa's profile

Grandpa

3256 posts in 2140 days


#4 posted 05-18-2012 05:23 PM

A few years ago I was trying to tune a Craftsman saw with the angle iron rail. It (in my opinion) needed a spacer between the rail and the table. When I tightened the fence it flexed the rail. If the rail is not perpendicular to the miter groove all bets are off. This would change as we got further from the last spacer. When I discovered what the problem was, I had a spacer machined and I drilled the table to install that spacer. The saw worked fine after that. I wonder if a lot of the problems people experience are not something like this? the rail has to be perpendicular to the rail at all time and in every setting. Check that out and see if that could be your problem also . Good luck with this venture.

View GregD's profile

GregD

783 posts in 2601 days


#5 posted 05-18-2012 05:42 PM

Post #2 makes sense to me. I would check the rail to see if it is perfectly straight.

-- Greg D.

View Cato's profile

Cato

693 posts in 2777 days


#6 posted 05-18-2012 06:52 PM

I do know that when I was recently assembling a TS, the manufacturers instructions for mounting the front rail was to use an adjustable square and set it at the depth they gave me to make sure that the rail was the same distance below the table top all the way across.

I am sure part of that was to make sure the miter gauge would clear it, but I would also imagine that it could affect the fence performance once the tube was mounted as well.

View madcitymike's profile

madcitymike

4 posts in 1671 days


#7 posted 05-18-2012 07:32 PM

Thanks. Good suggestions. I’m going to have another crack at it this weekend.

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

HomeRefurbers.com