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All Replies on Delta Unisaw will not register at 90 degrees

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View jeffdeluca's profile

Delta Unisaw will not register at 90 degrees

by jeffdeluca
posted 10-18-2018 11:54 PM


16 replies so far

View Nubsnstubs's profile

Nubsnstubs

1626 posts in 2273 days


#1 posted 10-19-2018 12:10 AM

If your saw is a new to you acquisition, it’s possible the original owner did some type of repair on the screw that causes it to tilt, and didn’t register it properly. If you’ve had from new, then use the manual to find the fix…............ Jerry (in Tucson)

-- Jerry (in Tucson) www.woodturnerstools.com

View TheFridge's profile

TheFridge

10859 posts in 2029 days


#2 posted 10-19-2018 12:12 AM

So, the finger that holds the stop bolt hits the trunnion before 90 correct?

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View jeffdeluca's profile

jeffdeluca

8 posts in 398 days


#3 posted 10-19-2018 12:15 AM

I don’t believe the finger hits, with the bolt removed it stops and there’s a gap between the finger and the stop – wondering if theres a build up of sawdust on top of the trunnion somewhere

-- Jeff DeLuca

View MrUnix's profile

MrUnix

7506 posts in 2742 days


#4 posted 10-19-2018 12:27 AM

Could be any of a couple different things… but usually resolves down to sawdust/crud mucking up things, or the pointer bracket getting caught up the cabinet seam or trunnion.

These threads over at OWWM may be useful:
UniSaw cannot get it to 90 Degrees
Uni blade won't zero
My Unisaw Won't Go Back To 90

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

View jeffdeluca's profile

jeffdeluca

8 posts in 398 days


#5 posted 10-19-2018 12:37 AM

Thanks everyone, need to do a little further investigation!

-- Jeff DeLuca

View TheFridge's profile

TheFridge

10859 posts in 2029 days


#6 posted 10-19-2018 01:23 AM

More than likely it’ll be something trivial.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View jeffdeluca's profile

jeffdeluca

8 posts in 398 days


#7 posted 10-19-2018 11:05 PM

Did a little more investigating today! This is weird… when I intentionally tilt the blade to the right just a few degrees off what I believe to be true 90 according to my machinist square, the thing cuts dead on 90! Am I missing something with table saw set up? Or is this thing just possessed? OMG

-- Jeff DeLuca

View lumbering_on's profile

lumbering_on

578 posts in 1033 days


#8 posted 10-19-2018 11:09 PM



Did a little more investigating today! This is weird… when I intentionally tilt the blade to the right just a few degrees off what I believe to be true 90 according to my machinist square, the thing cuts dead on 90! Am I missing something with table saw set up? Or is this thing just possessed? OMG

- jeffdeluca

Why do you ‘believe’ this is off 90? Is it because your saw says it’s 90, or are you eyeballing it? I use a digital gauge as my saw label is off a little big.

View jimintx's profile

jimintx

926 posts in 2127 days


#9 posted 10-19-2018 11:10 PM


Am I missing something with table saw set up? Or is this thing just possessed?
- jeffdeluca

Yes to both. All tools are a little possessed, and the larger and more expensive, the more it appears. Witness the countless number of videos and articles to show how to coerce a bandsaw into acceptable working setup.

-- Jim, Houston, TX

View jeffdeluca's profile

jeffdeluca

8 posts in 398 days


#10 posted 10-19-2018 11:26 PM


Did a little more investigating today! This is weird… when I intentionally tilt the blade to the right just a few degrees off what I believe to be true 90 according to my machinist square, the thing cuts dead on 90! Am I missing something with table saw set up? Or is this thing just possessed? OMG

- jeffdeluca

Why do you believe this is off 90? Is it because your saw says it s 90, or are you eyeballing it? I use a digital gauge as my saw label is off a little big.

- lumbering_on


-- Jeff DeLuca

View jeffdeluca's profile

jeffdeluca

8 posts in 398 days


#11 posted 10-19-2018 11:27 PM

When I set the blade to 90 with a machinist square, it cuts a slight bevel. When I set it intentionally to a slight right tilt, it cuts square. Im good with that if that’s life, but shouldn’t it cut 90 when I set it to 90?

-- Jeff DeLuca

View lumbering_on's profile

lumbering_on

578 posts in 1033 days


#12 posted 10-19-2018 11:29 PM


Yes to both. All tools are a little possessed, and the larger and more expensive, the more it appears. Witness the countless number of videos and articles to show how to coerce a bandsaw into acceptable working setup.

- jimintx

Maybe, you need an exorcist? :)

View lumbering_on's profile

lumbering_on

578 posts in 1033 days


#13 posted 10-19-2018 11:31 PM



When I set the blade to 90 with a machinist square, it cuts a slight bevel. When I set it intentionally to a slight right tilt, it cuts square. Im good with that if that s life, but shouldn t it cut 90 when I set it to 90?

- jeffdeluca

The first thing I would do is check if the table was level.

View chrisstef's profile

chrisstef

17974 posts in 3549 days


#14 posted 10-20-2018 12:49 AM

Deflection of a blade too thin might be a possibility too.

-- Its not a crack, its a casting imperfection.

View splintergroup's profile

splintergroup

3009 posts in 1765 days


#15 posted 10-20-2018 03:06 PM

Make sure you are measuring 90 on the same side your saw is cutting your test piece. Left vs. right side cuts can have a different angle if the table has a warp centered on the blade cutout. That aside, make your final test piece cut such that you are only doing a skim cut (< 1/16”). This helps take any blade deflection out of the test.

View jeffdeluca's profile

jeffdeluca

8 posts in 398 days


#16 posted 10-21-2018 03:12 AM

Got it! Omg! Ok so I have a thin kerf blade on the saw. I saw a video that said to check square w the insert out of the saw in order to run the blade of the square down into the saw along the whole diameter of the blade. When I did this it became embarrassingly apparent… Here’s the order of events on the arbor shaft… Freud think kerf blade, Freud stabilizer, factory washer, nut.
The Freud stabilizer, hollow on the blade side, is a little larger than the arbor flange and upon tightening the nut (no doubt too tight) I literally caused a “dish” in the blade and while it appeared square on top of the table, it was deflected.
Remedy… I loosened the nut slightly and the blade immediately flattened out and subsequent cut was dead on square!
I’ll no doubt install my standard full thick blade and not overtighten the blade.
Thank you for all the great suggestions!

-- Jeff DeLuca

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