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help a newb with a fence alignment question, please

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Forum topic by bdm_cmpe04 posted 07-16-2014 04:31 AM 961 views 0 times favorited 8 replies Add to Favorites Watch
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bdm_cmpe04

17 posts in 876 days


07-16-2014 04:31 AM

Hi,
Brand new to the forum and pretty new to woodworking. Like many of you I’m starting out slow. I have a Grizzly G0715P table saw. Recently I moved into a new home where I have a full basement to use for my shop, and that’s great. I took this as an opportunity to do some maintenance on my table saw, starting with alignment.

I am very familiar with the basics of this procedure. My question is as follows…what I have found is that when I tighten down the fence handle, the fence is very true and square. However, when I raise the handle, the back of the fence kicks out to the right by about 3/16”. So the issue is that – let’s say I need to make a minor adjustment to a cut in the range of 1/16” – as soon as I raise the handle, the fence cocks to the right, so now the squareness to the blade is off and it’s harder to tell my 1/16”, even when I use the tape measure on the fence rail.

I really don’t know what to adjust in this scenario…I have gone through the entire alignment procedure. This is the only saw I have owned, so I have nothing to compare it to, but it seems any T-square style fence should not become in and out of square – at least not to the point of moving 3/16” or so – simply by raising and lowering the handle. Am I wrong? Any thoughts on how to fix this? The fence slides very smoothly when the handle is raised, for what it’s worth.

Thanks in advance for the help.


8 replies so far

View tomd's profile

tomd

2027 posts in 3235 days


#1 posted 07-16-2014 04:50 AM

My fence also kicks to one side, just make the adjustment using your rail tape and tighten down and measure again.

-- Tom D

View TiggerWood's profile

TiggerWood

271 posts in 1072 days


#2 posted 07-16-2014 05:02 AM

Give us some pictures. I would like to see every aspect of your fence system.

View knotscott's profile

knotscott

7216 posts in 2841 days


#3 posted 07-16-2014 11:28 AM

Would help to reduce the amount of pressure on the locking head? You accomplish that by backing off both adjustment screws by equal amounts.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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bdm_cmpe04

17 posts in 876 days


#4 posted 07-16-2014 11:31 AM

I will get some pics on here soon. Regarding the pressure on the head…I thought of that approach too, but I arrived where I’m at now by only tightening enough to where the fence will stay put when I lock it down, so I don’t think I can back them off any more…

For what it’s worth, all the components are in great shape. I’ve not bent the rail or dropped my fence or anything like that.

Thanks for the replies.

View Redoak49's profile

Redoak49

1953 posts in 1454 days


#5 posted 07-16-2014 12:17 PM

I think that this is somewhat of a common problem for the fence to move slightly when locking it or unlocking it. Mine does that.

I think that the best is to do as tomd suggested which is to move it the amount that you need and retighten it. Then, of course, double check the distance between blade and fence.

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bdm_cmpe04

17 posts in 876 days


#6 posted 07-16-2014 12:20 PM

OK, well I am of course glad to hear it’s not just me…I am trying to think through logically what would cause this. Like I said, the fence slides very smoothly when unlocked…so if the nylon pads that are tightened with the set screws were gripping in one direction or the other unintentionally, then I don’t see how it could slide smoothly. But again, as I tighten down the handle, it pulls it right into alignment…I hate not knowing why, but I suppose the next best thing is to know it’s not just me and that it’s not a big deal :)

View gfadvm's profile

gfadvm

14940 posts in 2155 days


#7 posted 07-17-2014 12:32 AM

I have that same saw and solved the issue by waxing the rail and the plate under the handle that locks the fence to the rail. I also keep the cam on the handle waxed regularly. I have no idea/explanation why this worked but it will remind me when it needs rewaxed.

-- " I'll try to be nicer, if you'll try to be smarter" gfadvm

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bdm_cmpe04

17 posts in 876 days


#8 posted 08-06-2014 01:45 PM

OK, well I resolved this and now I feel like an idiot. For this particular fence, and I presume most like it, there are 4 set screws that affect this operation. 2 on the inside of the square tube (which change clamping pressure on the pads to align fence with – for instance – the miter slot), and 2 on the outside which change the depth of some plastic rollers that ride along the outside of the fence.

Not sure when I did this, but I retracted the set screws that change the depth of the rollers. Then the standard fence alignment procedure outlined in the manual doesn’t touch these, as I recall. So in my case, these rollers weren’t even touching the rail to keep it straight while sliding the fence left and right. Once I tighened them up, it keeps it’s position perfectly when I unclamp the fence.

Thanks for the help.

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