Hey Fawteen

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PHPaul
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Location: Downeast Maine

Re: Hey Fawteen

Post by PHPaul » Wed Jan 29, 2020 6:57 am

It might help to think of the jackshaft arrangement as a transmission or gearbox.

swampy
Posts: 59
Joined: Fri Jul 12, 2019 6:53 am

Re: Hey Fawteen

Post by swampy » Wed Jan 29, 2020 8:10 am

Could you use the motor and control off a treadmill?

GeneSC
Posts: 71
Joined: Thu Jul 18, 2019 6:50 pm

Re: Hey Fawteen

Post by GeneSC » Wed Jan 29, 2020 9:38 am

PHPaul wrote:
Wed Jan 29, 2020 5:50 am
It depends on the motor, but single phase motors that can be controlled by a VFD are unusual. They also tend to have much less power at lower speeds.
Yeah, that's what I thought, and I don't want to lose any power. I printed out the diagram and following conversation and will
carry it out to the shop and see if I can find a way to set up a new pulley system. Thanks Paul, and may have some more questions
for you. How could I mount a new jackshaft and pulley system?

GeneSC
Posts: 71
Joined: Thu Jul 18, 2019 6:50 pm

Re: Hey Fawteen

Post by GeneSC » Wed Jan 29, 2020 11:31 am

Paul, from studying the diagram and your explanation , I need two different jackshafts and
three belts?? How in the world would you change the speed back to where you could cut wood?? :roll:

PHPaul
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Posts: 399
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Location: Downeast Maine

Re: Hey Fawteen

Post by PHPaul » Wed Jan 29, 2020 12:29 pm

GeneSC wrote:
Wed Jan 29, 2020 11:31 am
Paul, from studying the diagram and your explanation , I need two different jackshafts and
three belts??

In that example, yes. You might be able to get to one jackshaft depending on the speed of the motor and the size of the pulleys.

GeneSC wrote:
Wed Jan 29, 2020 11:31 am
How in the world would you change the speed back to where you could cut wood?? :roll:

The changeover is why I suggested getting a second bandsaw and modifying it.

GeneSC
Posts: 71
Joined: Thu Jul 18, 2019 6:50 pm

Re: Hey Fawteen

Post by GeneSC » Wed Jan 29, 2020 7:37 pm

Using that diagram and explanation ALL three belts would have to be on all the time??
gonna think about it for a couple of days, I may be WAY over my head here!!! I can cut rafters, build cabinets and just about anything concerning building a house, BUT, this is something totally new to me. Thanks for putting up with me, and I'll probably have a lot more questions. :?

I don't have room in my little shop for two bandsaws :(

PHPaul
Site Admin
Posts: 399
Joined: Fri Jul 12, 2019 6:43 am
Location: Downeast Maine

Re: Hey Fawteen

Post by PHPaul » Wed Jan 29, 2020 8:30 pm

Ideally, I'd set it up so changing back to the original setup would be fairly simple.

When you get serious about this, send me a picture of how it's currently set up.

Also give me the motor speed (it should be on the ID plate) pulley size on the motor and on the saw, and the diameter of the blade wheels on the saw.

Hopefully I can come up with a design that will both slow it down enough to use it for metal and not be too much of a PITA to swap back to wood cutting.

PHPaul
Site Admin
Posts: 399
Joined: Fri Jul 12, 2019 6:43 am
Location: Downeast Maine

Re: Hey Fawteen

Post by PHPaul » Wed Jan 29, 2020 8:35 pm

swampy wrote:
Wed Jan 29, 2020 8:10 am
Could you use the motor and control off a treadmill?
Not sure it would have enough power, Swampy.

I'm using that setup on my belt grinder. The treadmill motor is labeled as 2.25 HP but unless I wind it right up until the bearings howl, I have to be careful how much pressure I put on the belt or it will stall.

swampy
Posts: 59
Joined: Fri Jul 12, 2019 6:53 am

Re: Hey Fawteen

Post by swampy » Thu Jan 30, 2020 9:17 pm

Thanks, that's good to know.

GeneSC
Posts: 71
Joined: Thu Jul 18, 2019 6:50 pm

Re: Hey Fawteen

Post by GeneSC » Fri Feb 07, 2020 7:45 pm

Paul, I have a question for you: The motor speed on my bandsaw is 1700 rpm, the motor pulley is 1 1/2 " the pulley on the
blade wheel is 6" and the wheel is 14" The blade is 93 1/2", would like to know what the blade is turning in FPS.
Thanks, Gene

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