Shopsmith Forums

charlese wrote:...
4) I have found that bandsawing with the saw blade attached (something that is not recommended) the bandsaw operations will no longer cause the knocking and vibrations mentioned in #1. My guess is the saw blade, acting as a flywheel dampens the undesirable effects. This is now my favored method of bandsawing.

Interesting. I've found something somewhat related. After doing some sanding with two discs mounted (different papers) I attempted to lower the speed down to minimum (force of habit I guess) and when it passed into the under 1000 range a serious, intense pounding racket ensued, such that I hit the Off button as quickly as I could before the thing blew up on me. Very Bad.
It's kinda the reverse of what you found. Later, with the second disc removed, I was able to use the sander at any speed without World War III going on inside the headstock.

Obviously problems remain in both machines.

nuhobby wrote:...
I'll look forward to charlese's latest updates -- somewhat curious if his overall belt tensions are slightly differently set than how I've got mine. ... Running the lathe or drum-sander or drill without the traditional "sheaves clatter sound" is a very pleasant change.

belt tensions-- I haven't messed with tensions, but have noticed that with some running time the machine has become smoother. Also noticed that "Stop" with sanding discs takes longer to coast to a complete stop. Similar with a saw blade, tho not as much. (When new the saw blade would stop almost immediately.) -------(added) also noticed that the various spindles are running much cooler now.

"sheaves clatter sound"-- I'll second that! First noticed this change while drilling some 3/8 holes in Auxiliary tables. If I'd had ear-muffs on I wouldn't have been able to hear either the drill or the headstock. I make more noise while mashing potatoes with a mixer.

Of course the down side of all this wonderful silence is that when the chatter-pounding starts it seems so much worse.

Ed in Tampa wrote:...
I know I'm wired different than most but I would always wonder about whether it was built either Monday morning after a lousy commute and the builders favorite football team lost or 15 minutes before quitting time on Friday.

A valid consideration. Many years ago there was a very well known manufacturer of computers who would actually shut down operations on certain highly critical pieces of equipment for a few weeks before, during and after the end/start year holidays. Seems workers' attention span was "challenged" during that time. Prior to this policy, too many "new" failures were traced back to those made in the holiday time frame.
The company, by the way, was known for having some very nice holiday parties.

Oh shucks! Wes called me and couldn't give me the figures he had worked up. Seems he needs the one machine he had set up for that purpose. Jim McCann had disassembled that machine.(Bummer). That machine should be back together tomorrow and we have an agreement to touch base (phones).

Just for kicks today, I put the 3 3/4" faceplate on the axillary shaft and with that on, bandsawed some sharp curves. This small heavy flywheel worked very well. Even better than the saw blade on the spindle. The issue here is the faceplate just barely fastens on to the aux spindle. The spindle is too short for a full grip of the set screw. If I take off the small screen that surrounds the aux spindle, I could get the faceplate on further.

kennygolub wrote:=====================================================

Thanks for the encouragement. When I ordered it, I figured with all the testing they said they did, it would be "good to go", especially at the price of it.
Maybe it's just my luck, but it seems anymore that whenever you buy something "now-a-days", you have to expect problems. Sending it back the day you get it makes it even worse. Two grand is a lot of money to me.
But alas, it's paid for and now I guess I have to ride it out

Working in Quality Assurance my whole life knowing what's supposed to happen at time of product release, I would be absolutely TICKED if I had any problems with this kind of investment IF.......I didn't feel like the company was feeling my pain equally and doing everything possible to minimize my pain. Properly handling a customer complaint can make a bad situation good when done correctly.

Our fellow member "thedovetailjoint" posted a video on youtube of resawing on the bandsaw when beta testing the PowerPro. I noticed that he has a pulley on his bandsaw for use on a dedicated power station. Perhaps that would work as a flywheel at that end? Alec

easterngray wrote:Our fellow member "thedovetailjoint" posted a video on youtube of resawing on the bandsaw when beta testing the PowerPro. I noticed that he has a pulley on his bandsaw for use on a dedicated power station. Perhaps that would work as a flywheel at that end? Alec

Somewhat inconsistant, because the bandsaw wheels should have considerable inertia by themselves. I doubt the pulley on the bandsaw shaft would be enough to be useful. The faceplate on the idler shaft works better due to both the closeness to the source of the problem(motor) and the increased velocity of the idler shaft.(maybe!;))

Wonder what a CI faceplate would do.(or a 6" one)

mickyd wrote:Working in Quality Assurance my whole life knowing what's supposed to happen at time of product release, I would be absolutely TICKED if I had any problems with this kind of investment IF.......I didn't feel like the company was feeling my pain equally and doing everything possible to minimize my pain. Properly handling a customer complaint can make a bad situation good when done correctly.

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I agree, and so far at least, ShopSmith is trying to make it right. I have no complaint with how they are treating the issue.

I'm just disappointed that I had the problem in the first place and now reading about some of the other problems that should not exist for the money they are asking for the headstock.

kennygolub wrote:========================================================
I agree, and so far at least, ShopSmith is trying to make it right. I have no complaint with how they are treating the issue.

I'm just disappointed that I had the problem in the first place and now reading about some of the other problems that should not exist for the money they are asking for the headstock.

Blame it on the New Zealanders for building a motor with excessive instantaneous acceleration!!!!:rolleyes::D(no doubt caused by insufficient inertia(no fly wheel effect)).

In their defense, as a 'pure' motor design parameter for this type motor, the above is not desirable. However, it appears these multi-applications require it. The trade off is timeliness of speed correction response which IMHO would be acceptable(compared to above described 'issues').

JPG40504 wrote:Blame it on the New Zealanders for building a motor with excessive instantaneous acceleration!!!!:rolleyes::D(no doubt caused by insufficient inertia(no fly wheel effect)).

In their defense, as a 'pure' motor design parameter for this type motor, the above is not desirable. However, it appears these multi-applications require it. The trade off is timeliness of speed correction response which IMHO would be acceptable(compared to above described 'issues').

Do 100% of the PowerPro's experience this condition? If no, design or manufacturing process variability is an issue. If yes, how could SS have released the units for sale to the general public, not to mention reviewers from the major woodworking magazines.