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Old 25-03-2014, 12:23 PM   #16
Domcr250
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Maybe it's worth putting a speed adjustable motor on it .... you will need something with brushes instead of an induction motor and then grab one of these http://www.eachbuyer.net/4000w-high-...l-p175511.html

Not sure if it work, but you could have a nice simple adjustable control?
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Old 25-03-2014, 12:29 PM   #17
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Round bit with holes is the spindle lock and fits in that hole.

I was thinking of some kind of variable speed drive for the future. Maybe even an inverter and 3phase motor. For now I'll stick to belts and pulleys and make sure its mechanically sound then look to upgrade in future.

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Old 25-03-2014, 02:13 PM   #18
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I've just found an Android app called 'pitch length' to calculate the length of belts that I'll need. All I need now is the postman to deliver the bits I've ordered

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Old 25-03-2014, 05:28 PM   #19
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with the motor i know in newzealand you can get what is call a single to three phase speed controller and it basicly convert single phase house supply into three phases then also make the motor speed controlable as well solving all your belt swapping issues
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Old 25-03-2014, 06:08 PM   #20
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Quote:
Originally Posted by ardonfast View Post
free head skims on john as long as the head fits in his sachell,
As long as it's a cast iron head. Aluminium doesn't pull down well on my magnetic chuck
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I've got 3 long studs in my hand.
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Old 25-03-2014, 08:45 PM   #21
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Quote:
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with the motor i know in newzealand you can get what is call a single to three phase speed controller and it basicly convert single phase house supply into three phases then also make the motor speed controlable as well solving all your belt swapping issues
Yup, thats the thing I was talking about above. Variously known as variable speed drive/inverter/soft start etc....

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Old 26-03-2014, 02:12 AM   #22
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As long as it's a cast iron head. Aluminium doesn't pull down well on my magnetic chuck
That's a good start,
I was wandering about your Colchester bed grind link
As Colchester are the daddy's
I think warrens blunt is from the 1950's thou,
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Old 26-03-2014, 09:45 AM   #23
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Well we've got machines from the 40's up to the late 80's. All Snow grinders, some vertical and some open sided. Chucks from 72" to 3.5 metres.

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Old 26-03-2014, 08:14 PM   #24
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That's a big chuck! What do you use those for?


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Old 26-03-2014, 08:15 PM   #25
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Grinding flat stock steel


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Old 29-03-2014, 03:55 PM   #26
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Starting to look like a lathe now. All stripped, cleaned, oiled and re-assembled:



The postie arrived with a whole heap of goodies for the drive:



I'm now waiting for another shaft, some keys for the pulleys and a new bearing for the motor. I then need to figure out a way of slackening the belt to change speed and fitting it all in the cupboard under the lathe. I'm getting quite excited now


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Old 02-04-2014, 07:10 PM   #27
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All the bits are now here, so its time to start on the drive. First job is to cut some keyways. With a dremel...

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Old 03-04-2014, 10:19 AM   #28
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precision engineering at it's best then with the dremel! lol good work keep it up.
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Old 05-04-2014, 12:41 PM   #29
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I've managed to make a keyway in one pulley but the lathe is now on hold while I play with a new toy I picked up today for 200:





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Old 05-04-2014, 05:04 PM   #30
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OOOO! get you, nice tig and at a good price as well.
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