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Is my INCRA Miter 1000HD defective?

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Forum topic by jtm posted 02-11-2018 09:35 PM 1141 views 0 times favorited 16 replies Add to Favorites Watch
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jtm

230 posts in 1842 days


02-11-2018 09:35 PM

Hi guys,

Quick question on my Incra 1000HD miter gauge.

First, I verified that the table saw blade is parallel to the miter slot. ( 0.001”)

Then, I just spent the last hour calibrating my 1000HD miter gauge using the 5-cut method to within a total error of 0.001” over 20”, which means that it is basically as perfect as possible ( 0.00025”).

Then I set it to 18 degrees and tried to make a 10 segment circle. As you can see in the picture, it’s not even close. I used the Incra stop to ensure that all pieces are the exact same length.

Now I know these things get great reviews, so is it possible I’m missing something? If I have my 0 degree setting as perfect as possible, shouldn’t all the other indexed stops be accurate as well?


16 replies so far

View Redoak49's profile

Redoak49

3671 posts in 2194 days


#1 posted 02-11-2018 10:27 PM

I tried with my Incra 1000SE and had similar problems. It is very difficult to get the same length and angle. I used a sled and with a coupe of trials was hitting it right on.

View John_H's profile

John_H

188 posts in 1911 days


#2 posted 02-11-2018 10:33 PM

Can you take all the pieces, stack them up on their back edge and look to see if there are any that are out of spec?

View jtm's profile

jtm

230 posts in 1842 days


#3 posted 02-11-2018 11:27 PM



Can you take all the pieces, stack them up on their back edge and look to see if there are any that are out of spec?

- John_H

That’s one of the first things I checked.

They are all identical.

View WhyMe's profile

WhyMe

1075 posts in 1766 days


#4 posted 02-12-2018 12:12 AM

Too many variables. Miter gauge not perfect, saw cut not perfect, and human not perfect. Any combined error is multiplied by 20 cuts.

View Luthierman's profile

Luthierman

221 posts in 1293 days


#5 posted 02-12-2018 12:39 AM

For what its worth, I like to do the segmented glue-ups like that in halves, sanding the final joint flat to its mate, eliminating trying to get everything perfect. I imagine there’s nothing wrong with your incra. I think its compounded problems. Wood tear out not allowing a perfect seat on your fence, stuff like that. Also is the vernier scale at zero too?

-- Jesse, West Lafayette, Indiana

View jbay's profile

jbay

2896 posts in 1105 days


#6 posted 02-12-2018 01:10 AM

I like to wrap a tie down strap, or a band clamp around all of the pieces.
I think that gives you a better idea of how much its off and also where.
That could tell you where you need to adjust, or where the problem may be coming from depending on where its off.

View hairy's profile

hairy

2783 posts in 3738 days


#7 posted 02-12-2018 01:17 AM

Maybe this will help. https://www.youtube.com/watch?v=QzV-o4_kacc&t=26s

You’ll get a better answer from Incra than you will get here.

-- My reality check bounced...

View Charlie H.'s profile

Charlie H.

295 posts in 856 days


#8 posted 02-12-2018 02:06 AM

If I had a do-over I would not purchase the HD1000.
Mine had a broken part in it (which Incra quickly replaced) but the one I got was terribly out of square and only after taking all the adjustment range out in a counterclockwise rotation was I able to adjust it to 90
90
should be in the center of the range IMO.
Even though its heavy it does not feel robust, just big heavy and unbalanced.
I find myself still reaching for the stock miter gauge and using the crosscut sled.

-- Regards, Charlie in Rowlett, TX --------I talk to myself, because sometimes I need expert advice.---------

View bonesbr549's profile

bonesbr549

1576 posts in 3272 days


#9 posted 02-12-2018 02:38 AM

Ok, I’ve had mine for over 10 years. Works perfect. I’d ask a couple things. First, i’m going to assume the 90 is dead on, so the issue is only in the angles. Is the 45’s dead on, checked with a machinist 45? Second, when you use the detents are they in the very bottom of the groove. Second check that you don’t have some little bit of sawdust in the groove as well. Finally that vernier scale can get challenging to hit just right if its off a few degrees.

I had some similar issues, in the beginning but stuck with it, and used clamps to hold the material consistently and it helped. Check you rail. It should be tight in the slot. That will give you a slight variation. They wear and expect to change them every few years.

One final comment. Not knowing your blade, cut your first cut close to the line, and then shave the final cut off. You could be getting a slight deflection in the blade.

Mine’s monkey nuts dead on.

-- Sooner or later Liberals run out of other people's money.

View ArtMann's profile

ArtMann

1161 posts in 1021 days


#10 posted 02-12-2018 02:51 AM

What you have is a tolerance stack up problem, not a miter gauge problem. First of all, you will never be able to consistently cut things in such a way that the end result has zero error. Even if the gauge is 100% accurate, your technique and equipment are not. You didn’t assemble the thing like one would normally do. What you did was to put the entirety of the error in one joint. Typically, all pieces would be clamped together at the same time with a strap or band clamp. That would allow the error to divide itself among all the joints instead of forcing it all into one. The clamping pressure would make the tiny errors disappear. Your stock is quite thin, making proper clamping difficult. If I were going to make a lot of those, I would make a glue up fixture.

I have used an Incra 1000HD for over 10 years building multi-sided boxes and accuracy has never been a problem.

View jtm's profile

jtm

230 posts in 1842 days


#11 posted 02-12-2018 05:20 AM

I tried it again, but I used a nice piece of baltic birch ply.

I also did a test fit with a strap clamp, and it looks to be spot on.

So I guess I’m good to go.

View jimintx's profile

jimintx

858 posts in 1790 days


#12 posted 02-12-2018 06:49 AM



If I had a do-over I would not purchase the HD1000.
Mine had a broken part in it (which Incra quickly replaced) but the one I got was terribly out of square and only after taking all the adjustment range out in a counterclockwise rotation was I able to adjust it to 90
90
should be in the center of the range IMO.
Even though its heavy it does not feel robust, just big heavy and unbalanced.
I find myself still reaching for the stock miter gauge and using the crosscut sled.

- Chashint

Dang, Charlie. Nothing like my feelings about it. I think it is wonderful! Within a few days of having it, I lost track of where my original equipment miter gage even is, let alone ever reach for it.

I’m curious: what table saw did you try it out with?

.

-- Jim, Houston, TX

View Tennessee's profile

Tennessee

2893 posts in 2720 days


#13 posted 02-12-2018 12:50 PM

I recently bought the HD1000 and the Miter Express. After complete setup, it is dead on. The 1/10’ vernier takes a little time to get used to, but once you read the addendum they add, and do it once or twice, it is really simple.
I actually was able to set it up to 11.25’ yesterday afternoon, and laid out four rings, 16 segments each of walnut and yellowheart, zero light in the seams on all four rings when dry fitted with band clamps. Glued them up and happy, happy, happy.
One of the secrets seems to be able to cut the segments the same exact length every time. I use a block with magnets in it, up against my table saw fence below the blade cut. I slide it up so I can measure from the blade to the block, then bring the block back down so the block is not in the way of the cut, but sets the distance. Run the wood off the Miter Express to the block edge, then push forward from there into the blade. I can measure to 1/64th of an inch with this system, using a calibrated rule.

-- Tsunami Guitars and Custom Woodworking, Cleveland, TN

View Woodbum's profile

Woodbum

837 posts in 3271 days


#14 posted 02-12-2018 01:56 PM

Had mine for several years and would not give it up. Can’t say enough good things about the folks at Incra and their products.

-- "Now I'm just another old guy wearing funny clothes"

View Charlie H.'s profile

Charlie H.

295 posts in 856 days


#15 posted 02-12-2018 06:22 PM

I know I am in a tiny minority.
It just started out bad for me and I guess I have just never been able to get past it.
The end of the plastic piece in the sliding stop was broken off at the screw hole.
I found it when that piece slid out of the stop because neither screw was tightened.
There are 4 screws that hold the miter, you loosen those to adjust for square. I managed to get it square but I had to twist hard counterclockwise, there is absolutely no more adjustment available in that direction.
Loose screws, broken part, required adjustments on every parameter….just wasn’t what I expected when I paid the $$$ for the Incra.
Incra replaced the broken part after I sent a picture and I didn’t have to return the defective one.

You know if you buy something from Harbor Freight you have certain expectations and when you buy something from Incra you have certain expectations…..I feel like I got the Harbor Freight experience with the HD1000 instead of the WOW this is better than sliced bread experience I was expecting.

My saw is a Delta 36-714 hybrid, I have adjusted it so it is square, straight, and true.

-- Regards, Charlie in Rowlett, TX --------I talk to myself, because sometimes I need expert advice.---------

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