Ridgid R4512 Alignment issue...was I being too particular

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Forum topic by AUBrian posted 04-01-2012 11:52 PM 8004 views 1 time favorited 12 replies Add to Favorites Watch
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86 posts in 2872 days

04-01-2012 11:52 PM

Topic tags/keywords: tablesaw

I know that we often talk about how accurate is accurate enough, and I recently had an experience while looking at a table saw that I wanted to get some additional opinion on. Now before I begin, I should point out that I am an engineer, and tend to be a little over-analytical, thus this post.

I finally decided to bite the bullet, and step up from my little Delta table saw. After much debating, and some talking about what fit into the butget with my wife, I decided that a R4512 would probably be the best bet. Plus, it is available locally, and I could use a Harbor Freight coupon (Or they were willing to take off at least a partial amount for good arguing).

Anyway, I got it home on Friday, and assembled it on Saturday, taking more care that I have on anything in a while. I got to the step where you align the fence to the blade, and thought it would be a better idea to align the blade to the mitre slots first. Thus began the adventure into madness.

During the initial alignment, the blade was almost 1/8” out from front of the blade to back, when the blade was about 2” raised. I went through the process of heeling the blade per the manual, (adjusting the back of the blade after loosening the the trunion mounting bolts) and found that it wouldn’t align. In fact, it was still between 1/10” and 1/16” out. This is after trying the clamping trick, and a deadblow hammer.

I ended up taking the now mostly assembled saw back to Home Depot, and after telling them what was going on, they not only offered to take the saw back, but also to let me open one of the new ones still on the the shelf, and check alignment prior to trading in. I did, and found out that even the brand new one was between 1/16 and 1/32 out. I decided that it was not worth it to spend 4 hours putting it together again with the unknown of if could even be aligned, so I did a straight return and left it at that.

So with all that said, am I too particular, or fair in my assesment? And secondly, what should I consider instead (I’m leaning towards grizzly now, or waiting for a smoking deal on Craiglist that everyone else seems to get :o)

12 replies so far

View knotscott's profile


8147 posts in 3576 days

#1 posted 04-02-2012 01:11 AM

It would be expecting too much for a saw be perfectly aligned out of the box, but you should definitely be able to align it closer than 1/32”....that’s 10x what it should be, so you’re not being too picky… +/- 0.003” is a reasonable goal. If the 1/16” to 1/32” deviation caused a piece of wood to bind, it could kick back at you….not a good situation.

Which Grizzly are you leaning toward? As it turns out, the G0715P has very similar guts to the R4512 and Cman 21833, and has had it’s own fair share of alignment issues. On the plus side, Griz is pretty good about stemming the flow of a defective products, and making this right. I haven’t heard many (any complaints about the G0661 or G0713).

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

View Chris Cook's profile

Chris Cook

326 posts in 2482 days

#2 posted 04-02-2012 01:24 AM

I do not think you are asking for too much for sure.

I just bought the R4512 (3 weeks ago). The first thing I did was check for square and build sleds. I found the saw to be very close (=< 1/32) to dead on.

I found the cuts to be even better than my initial measurements.

Good to hear Home Depot did such a good job with this. I had black listed Home Dept a while back for back experiences at my local store. I gave them another chance over the last year and a half and have found things to be much better.

-- Chris, "all we are is sawdust in the dust collector""

View Mike's profile


9 posts in 2858 days

#3 posted 04-02-2012 01:37 AM

Within the last month I purchased the Grizzly Table Saw GO691. Straight out of the shipping container the alignment of the blade to the miter gauge slot was something less than 0.006 (6 thousands of an inch). Didn’t touch it. When I aligned the fence to the miter gauge slot I was able to easily get it to 0.005 (5 thousands of an inch ).

-- Mike

View Charlie's profile


1100 posts in 2487 days

#4 posted 04-02-2012 01:38 AM

When I bought my 4512 I couldn’t get it aligned either. I had to loosen the front trunions and move those over FIRST before I could tighten a front one as a pivot to get it aligned. Unfortunately it was all in vain as the entire rear of the assembly would shift to the right as the blade was raised. Rigid tech support said it was a defect in the raise/lower mechanism. I ended up taking it back and going elsewhere for a Steel City 35990G.

View Scot's profile


344 posts in 3597 days

#5 posted 04-02-2012 08:17 AM

Is that AUBrian as in Auburn?

-- If the old masters had power tools, they would have used them. So get off your damn High Horse.

View AUBrian's profile


86 posts in 2872 days

#6 posted 04-02-2012 12:08 PM

You got it Scot, graduated in ‘01.

And Knotscott, I am not sure yet…I had been considering the 715P, but hadn’t really started researching yet, so it’s good to know that alignment could be an issue there as well. I’m also shopping Craigslist for a used PM66 or a Unisaw. Plus, there’s a guy near me, in Greeneville, that I’ve heard good things about the used saws he has. So far, though, every one I find in my price range has been a 3 phase, which means an extra cost for a phase converter.

Charlie, I tried everything I could think of to get the first one aligned…I started by loosening 3 of the trunion bolts and barely loosening the other one (the difficult one over the motor) and using that one as the pivot point, then I loosened all 4, shifted the entire trunion as much as I could, tightened the front back up and pulled the back over, still couldn’t get it.

My biggest things here are that with the current Delta, it’s just dangerous. The motor bogs down to a stop on a simple 2×4, unless I push it so slowly that I’m in danger of falling asleep from boredom mid-cut (An exaggeration of course), and the saw has a bad habit of tipping backwards, due to it’s massive 40 lb weight (I was just starting woodworking, and not able to spend much at the time.) I find that I am more apt to use a circular saw and edge guide before I resort to the table saw.

View Charlie's profile


1100 posts in 2487 days

#7 posted 04-02-2012 02:03 PM

If you can find a good used saw on CL or other source nearby, that’s a good option to explore. When I was looking at getting a new saw, though, I was looking at getting the riving knife as WELL as getting a better saw than I had. Sometimes that’s hard to find in a used saw. I looked for a few weeks and nothing was available locally so I went looking for new.

I looked at the G0715P after returning my R4512 and couldn’t justify in my mind the cost for yet another saw with table-mounted trunions. Not that I have anything against Grizzly. I also looked at the Steel City saws and because of the budget I had to fit into, I got the 35990G. I was trying to get the 35990C model but none were available locally and I needed to get moving on a project. It’s not a cabinet saw, but it’s worlds better than what I had and as it turns out, it’s a darn nice saw. And Steel City has a sale running until June 30th. So the timing was right for me. Oh and another deciding factor was that the local place I purchased from is also factory authorized for warranty repairs. Make sure to look at your service options just in case you need service (assuming you get a new saw with a warranty).

View mingfrommongo's profile


9 posts in 2450 days

#8 posted 04-02-2012 02:52 PM

I bought the r4512 last summer. I immediately became too busy to get to the assembly of this saw. Around Christmas I was finally able to start the assembly but the hardware packs were missing and after a call to Ridgid and about a week’s wait I received the hardware packs no charge. I began assembly and all was going well until I went to put the handle on the blade raising mechanism. I realized that I had not checked it and the threaded end had been severed. Another call to Ridgid and I was sent a new rod again at no cost. I’m not the greatest mechanic on earth so it took a couple weeks to figure out how to replace this rod. Through this learning process I probably loosened 80% of everything that could be loosened. I’m sure any alignment that might have been done to this machine was easily knocked out of kilter.

When it came time to align the blade to the miter slot, I was a full millimeter off from front to back. After a few useless attempts, I became very frustrated because I could never get my old Skil saw to align properly and that’s why I forked out the cash for this one. Having exhibited more patience with this machine than I have done with anything in my life, I went back for another attempt. I found that the handle of the hammer was the lever I needed to adjust things to within .05 millimeter of perfect alignment.

I’ve got the day off so I’m going to the garage to build a cross cut table and a couple other jigs that I’ve been looking at plans for. Ridgid was very good about providing me with the things necessary to get my saw working properly. I actually think that it may be helpful that I now know more about the workings of this saw than I ever would have. I might finally have gotten it through my thick skull that I need to approach things systematically with patience to get to where I want to go.

View Scot's profile


344 posts in 3597 days

#9 posted 04-02-2012 08:57 PM

I know of a couple of unisaws in our area (I’m in Dadeville). One is $500, 220v 1ph, and in fair condition, wouldn’t take much to get it into great condition. The other is in excellent condition, I’ll get the price and specs on it weds when I go pick up some lumber.

-- If the old masters had power tools, they would have used them. So get off your damn High Horse.

View lieutenantdan's profile


176 posts in 2507 days

#10 posted 04-02-2012 10:22 PM


Still have all your fingers!! Good luck finding a saw.

-- "Of all the things I have lost in life, I miss my mind the most."

View AUBrian's profile


86 posts in 2872 days

#11 posted 04-03-2012 02:02 AM


I appreciate the heads up, and yes, I would be interested in what is available, and of course condition/pictures, before I drive all the way down there. Just keep me informed, please.

And yes, Dan, still have all 10 fingers and toes, but not for lack of trying ;).

View Scot's profile


344 posts in 3597 days

#12 posted 04-03-2012 02:55 AM

Brian I will be going to pick up some lumber weds or thurs. I take some picks of the one at the saw mill and post them on here.

-- If the old masters had power tools, they would have used them. So get off your damn High Horse.

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