Author Topic: treadmill  (Read 6909 times)

Offline Bourne Bill

  • Jr. Member
  • **
  • Posts: 32
treadmill
« on: February 27, 2009, 03:58:24 PM »
I just scored a treadmill and its in working condition. I was thinking of using it as a motor on my Jet mill, but being only 3/4 H.P. 8 amps,I dont think its powerful enough. Any Ideas on what else I could use it for?
Life is short, eat dessert first...........

Offline Darren

  • Madmodder Committee
  • Hero Member
  • *****
  • Posts: 3795
  • N/Wales
Re: treadmill
« Reply #1 on: February 27, 2009, 04:06:58 PM »
What type of Jet mill, if this one then yes I suppose it is a little on the small side. But I suspect you mean a smaller one  :scratch: got a pic or link.

http://www.jaskela.com/html/img-pages/jet_mill.html

Welcome to the forum BTW,
« Last Edit: February 27, 2009, 04:08:29 PM by Darren »
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline sbwhart

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 3530
  • Country: gb
  • Smile, Be Happy, Have Fun and Rock Until you Drop
Re: treadmill
« Reply #2 on: February 27, 2009, 05:24:10 PM »
Hi Bill

As Darren said a photo would be helpfull   :worthless:

If you do a search on the forum ther's a couple in threads that can help you with this.

I take it the treadmill is the type you get at gym.

Could you use the motor to make a post grinder for your lathe ?. Or a buffer.

Have fun
 :wave:
Stew

A little bit of clearance never got in the road
 :wave:

Location:- Crewe Cheshire

Offline John Hill

  • The Artful Bodger
  • Madmodder Committee
  • Hero Member
  • *****
  • Posts: 2016
  • Country: nz
Re: treadmill
« Reply #3 on: February 27, 2009, 05:30:15 PM »
A 3/4 HP motor that takes 8amps?  Sounds like a low voltage (80 volts or so)  DC motor?  If thats what it is and it is a permanent magnet type you have the makings of a good wind turbine generator!

An easy test, short the wires together and see if it is hard to turn with your fingers, if so it is likely to make an effective low voltage generator and might be a candidate for EBay if you dont have a need for it.
From the den of The Artful Bodger

Offline Brass_Machine

  • Administrator
  • Hero Member
  • *****
  • Posts: 5504
  • Country: us
Re: treadmill
« Reply #4 on: February 27, 2009, 06:06:20 PM »
Hey Bill!

1st Welcome to the collective  :borg:
2nd I really don't have an answer for you... these guys might!
3rd I got rid of the duplicate posts. Hope you don't mind... easier to follow the thread if there is only one.

Eric
Science is fun.

We're all mad here. I'm mad. You're mad.

Offline Darren

  • Madmodder Committee
  • Hero Member
  • *****
  • Posts: 3795
  • N/Wales
Re: treadmill
« Reply #5 on: February 27, 2009, 06:08:08 PM »
Yes you could do that, but tread mills come with a motor controller and you have a great source for a variable speed controlled machine.

It's likely to be a DC permanent magnet motor with high torque.
Don't let 3/4hp fool you, many lathes run on 1/2hp and even 1/3 hp My industrial Smart and Brown only uses 3/4hp on low speed and that has plenty of power.
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

bogstandard

  • Guest
Re: treadmill
« Reply #6 on: February 27, 2009, 06:34:58 PM »
I replied to one of the deleted posts, and basically said what Darren suggested.

That size of motor would be perfect for a medium sized lathe, about 5" centre height, and having variable speed makes it really desireable for such a use.

John

Offline Brass_Machine

  • Administrator
  • Hero Member
  • *****
  • Posts: 5504
  • Country: us
Re: treadmill
« Reply #7 on: February 27, 2009, 07:39:35 PM »
I replied to one of the deleted posts, and basically said what Darren suggested.

That size of motor would be perfect for a medium sized lathe, about 5" centre height, and having variable speed makes it really desireable for such a use.

John

Sorry about that John... I thought I had moved your post.

Eric
Science is fun.

We're all mad here. I'm mad. You're mad.

Offline John Hill

  • The Artful Bodger
  • Madmodder Committee
  • Hero Member
  • *****
  • Posts: 2016
  • Country: nz
Re: treadmill
« Reply #8 on: February 27, 2009, 07:59:54 PM »
 :bang: Duh!  I got distracted by "what else can I use it for?"

Must confess though the tought of using the treadmill electronics for a variable speed drive did not enter my tiny mind! :doh:
From the den of The Artful Bodger

Offline Darren

  • Madmodder Committee
  • Hero Member
  • *****
  • Posts: 3795
  • N/Wales
Re: treadmill
« Reply #9 on: February 27, 2009, 08:42:32 PM »
That's Ok John, we all do that at times, or even most of it  :ddb:

That's why we are all here, the collective works as one  :borg:
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline sbwhart

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 3530
  • Country: gb
  • Smile, Be Happy, Have Fun and Rock Until you Drop
Re: treadmill
« Reply #10 on: February 28, 2009, 01:42:01 AM »
Thanks Guys I'm a bit dim  :scratch: when it comes to electrics I didn't know there were permament magnet motors you learn all the time on this forum  :borg:

Cheers

Stew
A little bit of clearance never got in the road
 :wave:

Location:- Crewe Cheshire

Offline Bourne Bill

  • Jr. Member
  • **
  • Posts: 32
Re: treadmill
« Reply #11 on: February 28, 2009, 11:36:27 PM »
I forgot to mention that the variable speed works via a split pulley like a snowmobile clutch.
Life is short, eat dessert first...........

bogstandard

  • Guest
Re: treadmill
« Reply #12 on: March 01, 2009, 04:35:49 AM »
Aha!, mechanical variable speed, that will take a little more thought.

Bogs

Offline Darren

  • Madmodder Committee
  • Hero Member
  • *****
  • Posts: 3795
  • N/Wales
Re: treadmill
« Reply #13 on: March 01, 2009, 06:24:57 AM »
I forgot to mention that the variable speed works via a split pulley like a snowmobile clutch.

Ah, not so simple then, most do it electrically from what I've read....shame... :scratch:
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline Bourne Bill

  • Jr. Member
  • **
  • Posts: 32
Re: treadmill
« Reply #14 on: March 19, 2009, 01:36:09 PM »
I ll find another one. The town dump where I live has them in the swap shack quite frequently. I get a lot of nice square tubing there, from discarded exercise machines.
Life is short, eat dessert first...........