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Please Please help with Delta 37-071 jointer

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Forum topic by Shotty posted 11-16-2018 05:26 PM 309 views 0 times favorited 15 replies Add to Favorites Watch
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Shotty

10 posts in 28 days


11-16-2018 05:26 PM

Topic tags/keywords: jointer

I was fortunate to get some hand me down tools for free. One of them was a Delta 37-071 jointer. I have spent hours and hours trying to set the blades. There are two Jack screws that adjust the blades up and down. I have tried to note the height difference before and after tightening the clamp screws, to adjust accordingly, but there is really no rhyme or reason. Each time it’s different. I cleaned it all up prior to attempting to set the blades so there is nothing for it to get hung up on. I’ve tried with a dial indicator and a straight edge. As it stands now, the blade I am currently working on is equally off on both sides, even though I can see that the amount of blade protruding from the clamp is different on each end. Does this matter? In any case, it moves my flat edge 3/16ths of an inch which is too much. Anyone who has experience with this or similar machines, please help. I’m begging here. Lol. No seriously, I have several projects backed up that need this machine to work. Oh and also, I don’t know if the blades have been sharpened, but they didn’t appear to be irregular in any way. Thanks in advance for any help you can give.


15 replies so far

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Bob5103

108 posts in 1034 days


#1 posted 11-16-2018 05:45 PM

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Aj2

1877 posts in 1999 days


#2 posted 11-16-2018 06:22 PM

I suggest you look up the video of Bob Vaughan setting jointer knives.
Also make sure your knives are ground straight and not concave or convex. Even if their new check with a reliable straight edge.

-- Aj

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Shotty

10 posts in 28 days


#3 posted 11-16-2018 06:36 PM

Thanks for your comments. The blades are straight, but they look a bit more worn on one side, so I guess that’s why one side needs to be up higher than the other. I had decided to make a magnet jig, but in order for it to work I will have to remove the jack screws because they won’t allow the blade to come up freely. Also a magnetic jig will mean that my blade will be even with the outfeed table, will this give me a good cut. There seems to be a lot of conflicting opinions about it. Oh and my outfeed table isn’t adjustable by the way. Thanks again for your help.

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Shotty

10 posts in 28 days


#4 posted 11-16-2018 06:43 PM

I didn’t realize it until I went to look up the Bob Vaughn video, but I’ve already watched it a few times. He is very informative. This was how I was trying to set my jointer up, but again it has been taking hours and hours. Once I tighten the clamp bars against the blade it goes out of adjustment. When I loosen and try to readjust the blades for the amount it went out, and clamp it back it reads out again in a different way. So it just seems like a crap shoot every time.

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Shotty

10 posts in 28 days


#5 posted 11-16-2018 06:56 PM

The wear on the blades on one side is really only out by .025 of an inch from one end to the other, so I don’t know if that would make a huge difference. Especially since they are still flat. The blade needing to sit against the jack screws at a very slight angle might be effecting things once i clamp down though. This leads me to think that taking those screws out is a good idea.

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Bill_Steele

451 posts in 1932 days


#6 posted 11-16-2018 07:14 PM

Good luck setting the knives—I know that can be a trying process sometimes.

I bought this tool and found that it makes setting the knives easier for me.

Here is a video by the Wood Whisperer that I think is helpful in setting jointer knives.

I would think if you are going to go through the trouble of setting them then you want them to be sharp and have consistent wear. I would suggest buying a spare set of knives and then have a sharp set on hand to swap out if needed. I sharpen my own using a jig from Deulan.

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Shotty

10 posts in 28 days


#7 posted 11-16-2018 07:23 PM

I intend to get a spare set soon, but for now I need to work with this. Plus just being able to get this process down is important in the long run. I just thought of something. This video https://youtu.be/pxKgFSEtSxc shows how to make a jig using bar magnets. Again I’d have to remove my jackscrews for it to workand that would set them level with the outfeed table. But what if I made this jig by cutting up a .0015 feeler gauge shim into four pieces and placing each piece between the four magnets that touch the outfeedtable. Do you think that might work?

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Shotty

10 posts in 28 days


#8 posted 11-16-2018 07:23 PM

The blades still seem to be plenty sharp despite the wear on one side.

View Aj2's profile

Aj2

1877 posts in 1999 days


#9 posted 11-16-2018 07:38 PM

A jointer without a adjustable outfeed is worthless. If the knives where indexable that would be helpful.
Not worth the trouble

-- Aj

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Shotty

10 posts in 28 days


#10 posted 11-16-2018 07:40 PM

Unfortunately I have to work with what I have.

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Richard Lee

198 posts in 976 days


#11 posted 11-16-2018 10:53 PM

Check where the gib bolts are registering against the cutter head, if its making dimples or if the bolts are completely flat it can walk around a bit and move the blades with it.
Try just snugging up and keeping the dial on the knife, tighten and watch how much it moves.
Are there any burrs or high spots where the knives lay ?
Are your gib bolts bent ?

View MrUnix's profile

MrUnix

7046 posts in 2400 days


#12 posted 11-16-2018 11:21 PM

As it stands now, the blade I am currently working on is equally off on both sides, even though I can see that the amount of blade protruding from the clamp is different on each end. Does this matter?
- Shotty

Not in the least. The knives need to be set relative to the outfeed table only. Where they are in relation to the clamps (or even cutter head) makes no difference.

Also, I’d forget the idea of getting a jig or magnetic set for those knives. Jackscrews make it almost trivial to set once you get the hang of it. And a dial indicator works 1000% better than a straight edge as long as you can reliably find TDC :)

Cheers,
Brad

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

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Shotty

10 posts in 28 days


#13 posted 11-17-2018 12:05 AM

Thanks for everyone’s input. I finally got them set within one thousandth of an inch of each other. This jointer isn’t the best by far, but it was free and certainly the best one I have. Lol. These blades are made with holes through them for the gib screws and the jack screws. The hole in the blade rests on the edge of the jack screws. I actually did make a magnetic jig, and then realized when I went to use them that it was pointless as I had to rotate the cutterhead to get to the gib screws to lock it down. In the end I used the dial indicator and put very hard pressure on the blade pressing it against the jack screw while I tighten the gib screws. There are only two blades on the cutterhead, and right now. I’m happy about that. Lol. One blade reads one thousandth over both jack screws, the other reads a thousandth over on one side and barely above zero on the other. Please tell me that i don’t have to fix that?

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Shotty

10 posts in 28 days


#14 posted 11-17-2018 12:08 AM

It would have been really nice if delta had a bit more information regarding blade alignment. This is the first jointer I’ve ever used, and my learning curve could have been significantly reduced with a bit more info.

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Shotty

10 posts in 28 days


#15 posted 11-17-2018 12:09 AM

I think I will save testing it for a day when my patience is not worn so thin. Now I’m just going to rack my brain over table saw alignment. That should be relaxing in comparison.

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