Danger!

beeg · Post by **beeg** » Fri Mar 02, 2012 1:30 pm

keakap wrote:Seemed odd that one could one-finger the top of the BandSaw frame and easily wiggle it- a good amount- back and froth.

Are ya sure the mounting tubes are secured to the BS? Are the bolts in the sleeve (#11,22) adjusted to equal lengths?

dusty · Post by **dusty** » Fri Mar 02, 2012 2:14 pm

keakap wrote:Maybe time for a clarification. The "loose" thing was in reference to the coupler fitting. The "breeze flap" biness is just the amount of lateral 'play' one can observe (at the top of the bandsaw frame) while the unit is quite snugly installed and cinched down properly. "Stock" it appears to be of no real consequence and is a mere curiosity. To put it in context, I am looking for ANY thing that I'm doing wrong that may have caused any other problems.

I wouldn't characterize a 'flapping' BS as "loose", any more than I would do so for a table saw table when it is not tied to an extension table solidly. Surely we all know there is considerable "play" at least left-right to a saw table in a stand-alone configuration.
Maybe I should rather have said a "positive range of lateral motion". (But frankly, right now I don't even remember why I brought it up in the first place. It's an oddity.)

There is MORE clarification needed {coming soon to a forum near you.}. This had gotten a bit 'afield' as they say. My fault. Sorry.

OKAY, now you have done it. I'm going to have to mount the bandsaw on my Mark V and see how much it moves in a stiff breeze. Quite a bit, if I remember correctly. I have the bandsaw mounted on a Power Station and it moves quite as bit there too.

moose · Post by **moose** » Fri Mar 02, 2012 5:46 pm

No doubt, the eccentric tubes for the bandsaw provide about as much spring action as a diving board. Good idea in concept and if one can tolerate it, it works, but I find it annoying and remove my bandsaw anytime I want to go vertical. If the PP is sensitive to this, it's possibly a problem.

All of these things are growing pains just as they are for any new product going to market. Any new automobile can be tested at the factory and in the field until the fat lady sings but when the car gets into the hands of consumers, things have a way of happening. It is for this reason, I, like Dusty will delay purchase until the bugs are worked out.

dusty · Post by **dusty** » Fri Mar 02, 2012 6:46 pm

keakap wrote:Sorry Ed. Exaggeration for effect. On the other hand, my BS is NOT rock solid by any stretch of the description. I did have the newer eccentrics (for drill press use you mention) but they were completely unacceptable and came right off. [Anybody want set, for postage only?]

What I 'overstretchingly' called flapping in the breeze amounts to, for example, enough movement that when I push a (heavy) workpiece the table moves. For comparison, the jointer is solid, and most of the time the table saw is setup similarly.
I didn't use that term to denote a problem, per se. Just a fact of life, looking for and trying to eliminate possible sources of real problems.

And Yes, I do remove the BS for drill press mode. Once resolved to it, it really is not a big deal. Not too heavy, takes only seconds, reinstalls likewise, not a problem, concern or even annoyance.

I am a little confused about the difference between Bandsaw Eccentrics (555626) and Bandsaw Mounting Tubes (5137779).

I thought I understood that they were one and the same; the 555626 simply being a redesigned unit that replaced the originals that I have (5137779).

Mine do not provide clearance to raise the tubes with the Bandsaw mounted BUT mine do not leave the Bandsaw swinging in the breeze either.

Maybe the less flexible mounting tubes (5137779) should be used with the PowerPro. Could it be that simple?

charlese · Post by **charlese** » Fri Mar 02, 2012 9:41 pm

dusty wrote:,,,,Maybe the less flexible mounting tubes (5137779) should be used with the PowerPro. Could it be that simple?

Aw! Now you went and made me look up part numbers:rolleyes: . My bandsaw came with 5137779 tubes. Yes they are eccentric, but now that SS has the offset tubes, looks like they no longer call them eccentric.

The mounting tubes 5137779 fit loosely into the headrest and because of this, the bandsaw can rock forward and back, toward and away from the headstock. ("flapping in the breeze"!!!!) Firm pressure on the coupler from the headstock will tend to hold the bandsaw in place, but now I wonder if this puts the hub/coupler connection at an angle enough to bother.

The Belt sander uses the same mounting tubes. I have switched tubes and found the same loosness is present. Never saw this as an issue when using the older headstock. I don't think the headrest holes have enlarged to allow this movement. I believe the loosness has always been there. Try it on yours!:) I believe this is something we all overlooked because it was not an issue.

I have now turned the tubes upside down and find them to fit tightly. Haven't yet bothered to measure the diameter of the top and bottom of the tubes, however the short lengthseem larger. There is a problem with this upside down use as the short part will not reach the upper hole on the Bandsaw main case. Not good for hard bandsaw use.

All that said, I really don't know how much the rocking of the bandsaw will effect the growling of the PowerPro. At this point, I'm not headed to the newer bandsaw eccentric mounting tubes - 555626..

dusty · Post by **dusty** » Sat Mar 03, 2012 7:05 am

charlese wrote:Aw! Now you went and made me look up part numbers:rolleyes: . My bandsaw came with 5137779 tubes. Yes they are eccentric, but now that SS has the offset tubes, looks like they no longer call them eccentric.

The mounting tubes 5137779 fit loosely into the headrest and because of this, the bandsaw can rock forward and back, toward and away from the headstock. ("flapping in the breeze"!!!!) Firm pressure on the coupler from the headstock will tend to hold the bandsaw in place, but now I wonder if this puts the hub/coupler connection at an angle enough to bother.

The Belt sander uses the same mounting tubes. I have switched tubes and found the same loosness is present. Never saw this as an issue when using the older headstock. I don't think the headrest holes have enlarged to allow this movement. I believe the loosness has always been there. Try it on yours!:) I believe this is something we all overlooked because it was not an issue.

I have now turned the tubes upside down and find them to fit tightly. Haven't yet bothered to measure the diameter of the top and bottom of the tubes, however the short lengthseem larger. There is a problem with this upside down use as the short part will not reach the upper hole on the Bandsaw main case. Not good for hard bandsaw use.

All that said, I really don't know how much the rocking of the bandsaw will effect the growling of the PowerPro. At this point, I'm not headed to the newer bandsaw eccentric mounting tubes - 555626..

Since I have NO experience with the PowerPro, my comments were based only on what I have read here on the forum. I concluded that if a loose set screw could cause the growling then too could any unwanted movement of anything in the drive line. Thus the bandsaw moving on the tubes effects the coupler thus effects the PowerPro. Just trying to be analytic without hardware to check my theory.

robinson46176 · Post by **robinson46176** » Sat Mar 03, 2012 9:12 am

I had planned to make a set of "heavy" off-set tubes but then I decided to make the PM / PM double drill press and I don't think that I have raised a Shopsmith to vertical since. Oops, that is wrong but it was just raising the original Mark VII overnight to allow the oil I had applied to soak into the speed control bearing.
The off-set tubes are also a moot point for me since I decided to build a mini (OK, set up the one I already cut down) as a permanent home for my bandsaw.
I'm sitting here at the moment wondering if I would be wise to remove the bandsaw a couple of times a year and oil the speed control/idler thingy on the SS and set it up to vertical over night?

One thought always leads to another and another and ...

.

dusty · Post by **dusty** » Sat Mar 03, 2012 9:43 am

charlese wrote:Aw! Now you went and made me look up part numbers:rolleyes: . My bandsaw came with 5137779 tubes. Yes they are eccentric, but now that SS has the offset tubes, looks like they no longer call them eccentric.

The mounting tubes 5137779 fit loosely into the headrest and because of this, the bandsaw can rock forward and back, toward and away from the headstock. ("flapping in the breeze"!!!!) Firm pressure on the coupler from the headstock will tend to hold the bandsaw in place, but now I wonder if this puts the hub/coupler connection at an angle enough to bother.

The Belt sander uses the same mounting tubes. I have switched tubes and found the same loosness is present. Never saw this as an issue when using the older headstock. I don't think the headrest holes have enlarged to allow this movement. I believe the loosness has always been there. Try it on yours!:) I believe this is something we all overlooked because it was not an issue.

I have now turned the tubes upside down and find them to fit tightly. Haven't yet bothered to measure the diameter of the top and bottom of the tubes, however the short lengthseem larger. There is a problem with this upside down use as the short part will not reach the upper hole on the Bandsaw main case. Not good for hard bandsaw use.

All that said, I really don't know how much the rocking of the bandsaw will effect the growling of the PowerPro. At this point, I'm not headed to the newer bandsaw eccentric mounting tubes - 555626..

If asked, I would not have been able to tell you whether I had the "long legs" on the eccentric turned up or turned down. Now that I have looked, the answer is "yes". It depends on where I look. I have used them both ways.

It seems obvious to me NOW, that with the bandsaw the long legs must be up (because of the way the long legs mate with the castings in the bandsaw).

However, the long legs are NOT to be left in this fully inserted position. The short legs are to be locked in the headrest (fully inserted) and the bandsaw moved up/down of the long legs to adjust for proper vertical drive hub alignment.

BTW With the band saw all set to run on the Mark V, I have very little (if any) flopping in the breeze. It is stable enough that I would be surprised if it created the infamous "growling" effect.

curtis george · Post by **curtis george** » Sun Mar 04, 2012 6:32 am

Hello everyone.
this viberation problem may be a problem, but I think leaving the 10" circler blade on the machine while using the band saw is a mistake.
I own two SS (a greenie & a 510/20)
A while back ago on my greenie, I did the same thing. only instead of the set screw backing its self out, my table lossened up and slid down into the saw blade. No major dammage was done. but...
Now when not using the saw, I disconect it.Plane and simple.
C.A.G.

dusty · Post by **dusty** » Sun Mar 04, 2012 7:06 am

curtisgeorge wrote:Hello everyone.
this viberation problem may be a problem, but I think leaving the 10" circler blade on the machine while using the band saw is a mistake.
I own two SS (a greenie & a 510/20)
A while back ago on my greenie, I did the same thing. only instead of the set screw backing its self out, my table lossened up and slid down into the saw blade. No major dammage was done. but...
Now when not using the saw, I disconect it.Plane and simple.
C.A.G.

Leaving the blade attached when using the Mark 5/V for other than a table saw is probably NOT a good safety practice if for no other reason than "your attention is not focused on the blade".

When I get hurt in the shop it is almost always because I am not keenly focused on what I am doing. The last time I had an incident I was rushing to get done on the belt sander. Got a pretty nasty abrasion.