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Forum topic by richgreer posted 12-13-2011 09:54 PM 1671 views 0 times favorited 21 replies Add to Favorites Watch
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richgreer

4541 posts in 2540 days


12-13-2011 09:54 PM

I’m not happy with the band saw fence on my 18” Jet bandsaw. I’d like to replace it.

Based on my reading, I thought the Wood haven fence may be a good one to get, but the person at Wood haven said it cannot be used with an 18” BS.

A key feature I am looking for is the ability to easily change the angle of the fence. I currently use a resaw bar, but would prefer the ability to set the fence at just the right angle that compensates for any drift and allows me to resaw without a bandsaw bar.

Does anyone have a suggestion?

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.


21 replies so far

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Bertha

13003 posts in 2159 days


#1 posted 12-13-2011 10:16 PM

Hey Rich, I’m going through the same thing with my 20” Delta but in my case, I have no fence at all. The original Delta fences run $600, so that’s out. So far, I’m liking the Kreg fence but I’m not sure about correcting for drift. I’m sure you’re aware of Laguna’s driftmaster but it’s quite expensive. I’ll be watching this thread closely. Thanks!

I asked for all the goodies to build one for Xmas. If I have any success, you’ll be the first to know.

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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helluvawreck

23189 posts in 2333 days


#2 posted 12-13-2011 11:35 PM

Rich, can you modify the Jet fence to accomplish what you want it to do? Just a thought.

-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau

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David Kirtley

1286 posts in 2464 days


#3 posted 12-14-2011 01:26 AM

Maybe one of the magnetic ones that (I think ) carter sells?

-- Woodworking shouldn't cost a fortune: http://lowbudgetwoodworker.blogspot.com/

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Bertha

13003 posts in 2159 days


#4 posted 12-14-2011 01:29 AM

^David, Magswitch has one as well; but it’s more of a resaw fence. These were criticized for not holding up to much force. Unknown whether valid.

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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richgreer

4541 posts in 2540 days


#5 posted 12-14-2011 01:38 AM

cr1 – Maybe, I should not have drift issues – - but I do. They’re not severe, but they are a problem.

David/Bertha – I wonder about the magnetic fences and I have taken a look at the Carter one. I like the idea that I can add additional magnets to increase the holding power. FYI – I have several Magna Switches and I think would work (without having to buy more).

Helluvawreck – - I don’t see modifying my existing fence. It does not connect to a track at the far end and I think that connection is essential for what I want. Also – the fence has other problems. The clamp at the near end does not work and I have to secure the fence in place with a independent C-clamp. It’s junk.

Thanks to all for your input.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

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David Kirtley

1286 posts in 2464 days


#6 posted 12-14-2011 05:10 AM

You sure that they don’t have one at Grizzly that would fit?

-- Woodworking shouldn't cost a fortune: http://lowbudgetwoodworker.blogspot.com/

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gfadvm

14940 posts in 2156 days


#7 posted 12-14-2011 05:14 AM

Rich, call Grizzly and ask if they have one to fit. The fence that came with my 17” Grizz has held up well and adjusts easily for blade drift but it isn’t attached to the rear bar (but doesn’t seem to have deflection problems).

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

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Bertha

13003 posts in 2159 days


#8 posted 12-14-2011 11:16 PM

^Cr1, I’m not buying a tension guage. What kind of deflection should I be getting with the guard racked all the way up over a 3/4” or 1” blade? My tension know has a little window with a cursor; it’s simply graduated for the size of the blade. Can you ballpark the tension you mentioned into deflection over a distance?

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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wingate_52

224 posts in 2036 days


#9 posted 12-14-2011 11:53 PM

I have a few Magswitch items. When mated to cast iron they don’t move. I really like the finger guides.

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Brad_Nailor

2539 posts in 3423 days


#10 posted 12-14-2011 11:59 PM

Rich what kind of guides does your saw have on it? My Jet has the factory guides with the friction blocks, and I changed out the plastic guide blocks with cool blocks, and that helped a little. I also got a really nice 1/4” Timberwolf blade and that really improved the saws performance and they are supposed to be run with LESS tension than a regular blade. I still get a little drift..I am thinking about upgrading the whole guide system to a Carter ball bearing guide set. I think the blade movement I am getting is a result of the blade eventually wearing grooves in the guide blocks.

The resaw fence that Magswitch makes looks pretty nice..I played with them at Woodcraft and once locked down they don’t move..but you can get the bigger magnets if your worried…

-- http://www.facebook.com/pages/DSO-Designs/297237806954248

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richgreer

4541 posts in 2540 days


#11 posted 12-15-2011 01:25 AM

Bertha – - I own a tension gauge and I have found the when you reference that “little window” you come no where close to the right tension. In general, the right tension is about 20,000 lbs/sq in. To get to that level of tension I have to tighten to to, effectively, double what the window says. By double, I mean that for a 1/4” blade I have to tighten to the where the tension would be right. per the window, for a 1/2” blade.

Brad Nailer – My current guides are original equipment bearing guides. I’ve considered a switch to carter guides but they would cost about $269. I want to explore other options before spending that much money on something the might (or might not) solve the problem.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

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Bertha

13003 posts in 2159 days


#12 posted 12-15-2011 03:40 PM

Thanks, Rich. My window only goes up to 1 inch, so I’d probably have to buy a new spring. I probably need to do that anyway. I’ve had the Carter conversion in my cart several times; until I can get my tension situation fixed, I can’t justify it. I’m secretly worried that I need either a more powerful motor or I’m only getting 1/2 of my 240V (I wired the thing myself, after all;).

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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Dallas

3599 posts in 1953 days


#13 posted 12-15-2011 04:24 PM

I’m not convinced that band saw tension gauges are all that good an idea.
Mark Duginske wrote a piece for wood turner.org that shows the variability of different brands and types of tension gauges.
He also goes on to say that putting in an after market tension spring may cause more problems than it solves.

Here is his piece on PDF: Band Saw Tensioning

-- Improvise.... Adapt...... Overcome!

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richgreer

4541 posts in 2540 days


#14 posted 12-15-2011 04:50 PM

I recall an evening when a group of woodworkers, myself included, were invited to meet with representatives from a major tool manufacturer. They wanted to share ideas with us and get our reaction. They had several prototype tools there for us to opine on.

I particularly remember the time I spent with the bandsaw guy. He was the head of engineering for their bandsaw products. I remember him saying how poorly the little windows worked at indicating blade pressure. I believe that was an honest opinion. To the best of my knowledge, their company did not make or market any particular tension gauge.

Part of the issue is that the springs do loose some strength over time and that, by itself, makes the little windows less accurate.

The difference of opinion on this subject is significant.

FWIW – I own a Hakansson tension gauge and I use it occasionally to check tension.

Others can make their own decision about how they address this issue.

-- Rich, Cedar Rapids, IA - I'm a woodworker. I don't create beauty, I reveal it.

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Bertha

13003 posts in 2159 days


#15 posted 12-15-2011 06:16 PM

I think there’s probably some truth to all of it. I can tell just by deflection that my blade is WAY to sloppy when the 1” window indicates that the tension is proper. My saw’s over 60 years old and I never detension; which makes me think the spring could use replacing. I mean, I do it with automatic handguns all the time. I can see also how it could be universally argued against; just like tinkering with the springs in a handgun. I’ll have to read up a bit on it. Maybe I’ll contact Iturra. Thanks for the pdf!

-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog

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