MadModder

The Shop => Tools => Topic started by: Divided he ad on June 15, 2009, 08:24:22 PM

Title: 9x20 Lathe repair....
Post by: Divided he ad on June 15, 2009, 08:24:22 PM
Also known as.... "Wondering why the drive belt fell off!!?"


I had a few hours to myself tonight, home early from work and no pool, snooker or cars to fix :thumbup:


So I thought I'd have a go at my finger engine designs..... Not if Murphy or Sod have anything to do with it!!!


My main toothed drive belt fell of my lathe  :scratch:  
After a minor investigation it was very obvious why..... My clutched main drive sprocket was wobbling like a jelly :jaw:


After a quick strip down it was clear why,
(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03501.jpg)

The spring loaded oil way (little brass bit next to the circlips and the washer) had a big lump of @%$! in it and had not allowed the oil to pass through to the rear of the assembly.... Can we all say "dry bearings are bad"?

A 14mm ID bush..... For the 11.95mm shaft!
(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03503.jpg)



I removed the bush with a few small taps using a drift through from the other side.
(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03506.jpg)

Then thought to myself "how the hell am I gonna make a new one?!"  

I thought about the mill and then was struck by a bolt of obviousness.... Use the lathe!





Not the 9x20.... This one  :D  (peatol/taig lathe)

(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03508.jpg)

My first personal lathe, he's been in storage for nearly 2 years..... Still purrs like a kitten  :)


So a bronze bush was made..... These little lathes are fun and super accurate I just had to remember how to work it!!

(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03512.jpg)

The difference between the two....

(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03515.jpg)



One final issue, getting the clutch mechanism back together.... compressing 5 springs and fitting a circlip.....

Well, a little thought and 5 min's later I had it sussed, a mini spring compressor. Hacked out of a piece of ali box section, it worked a treat  :thumbup:



(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03518.jpg)

(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03519.jpg)

(http://i289.photobucket.com/albums/ll221/dividedhead/machine%20mods/lathe/drive%20gear%20repair/DSC03520.jpg)

All back together so that I can use it when next I get a few hour to myself....Not for the rest of this week, Pool trophy night, a landrover Diff' to replace, a gearbox out and in on a Vectra and a second hand door to fit for a foreigner on sunday!!  

I think I'll be lucky enough to get some rest let alone some "me time" ::)




Let this be a lesson, when you hear a squeek..... Investigate, don't leave it for a few months!!!!   :doh:  





Ralph.
Title: Re: 9x20 Lathe repair....
Post by: Bernd on June 15, 2009, 08:53:13 PM
Hey nice fix Ralph.  :dremel:  :thumbup:

My 9 X 20 keeps throwing the skinny drive belt off because of the idler wheel that isn't running straight. Didn't know I'd used the lathe that much to wear it out.

My fix? Well I'm going to go for a drive out of a tread mill one of these days.  ::)

Bernd
Title: Re: 9x20 Lathe repair....
Post by: Stilldrillin on June 16, 2009, 02:24:22 AM
Very nicely fixed, (and shown) Ralph!  :thumbup:

David D
Title: Re: 9x20 Lathe repair....
Post by: bogstandard on June 16, 2009, 02:31:16 AM
Good fix there Ralph.

As you know, if you get stuck, my shop is only is only a short drive away.


Bogs
Title: Re: 9x20 Lathe repair....
Post by: Divided he ad on June 16, 2009, 03:04:31 AM
My heart sank when I realised it was the bush, not because of the fix required but because I'd set myself up to do some work on my projects  ::)

Still, fixed now though  :)


Glad you liked the little(?) post on this gents.

John, you were one of the thought processes.... But when the Peatol came into my head I had it sorted  :thumbup:


Bernd, from what I remember reading the tread mill motor is quite a common conversion over there.... Must be something about freely available treadmill bits?


David, it's remembering to take the pictures when your head is on the job and then not filling the post with them all (There's another 12 or so!!) that's the hard part  :thumbup:




Right, back on me head!  (obscure statement of the week?)






Ralph.
Title: Re: 9x20 Lathe repair....
Post by: sbwhart on June 16, 2009, 03:11:25 AM
Good repair Ralph

 :headbang: :headbang: :headbang:

Stew
Title: Re: 9x20 Lathe repair....
Post by: Bernd on June 16, 2009, 01:39:26 PM
Bernd, from what I remember reading the tread mill motor is quite a common conversion over there.... Must be something about freely available treadmill bits?

Ralph.

I see two or three a year come into the transfer station.

I got one that was brand new. Had never been used. I could tell by the tale tail sign of no rub marks under the belt. Nice motor and control system.

They just buy them here and think they'll get skinny by owning it and not walking on it. Then they find out they have to walk on it and get rid of it.  :lol:   :lol:   :lol:

Bernd
Title: Re: 9x20 Lathe repair....
Post by: Darren on June 16, 2009, 06:57:48 PM
Init a nice feeling to know that YOU fixed it..... :clap:  :clap:  :clap:
Title: Re: 9x20 Lathe repair....
Post by: Divided he ad on June 16, 2009, 08:22:38 PM
Cheers Stew  :thumbup:



Quote
They just buy them here and think they'll get skinny by owning it and not walking on it. Then they find out they have to walk on it and get rid of it.         :lol: :lol: :lol:
Isn't that "stereotyping" Bernd?  :lol: 


Quote
Init a nice feeling to know that YOU fixed it.....      :clap: :clap: :clap:

Oh yes.. :D   Certainly is  :ddb: 







Ralph.
Title: Re: 9x20 Lathe repair....
Post by: Stilldrillin on June 17, 2009, 02:22:52 AM
Init a nice feeling to know that YOU fixed it..... :clap:  :clap:  :clap:

Such a great feeling!  :D

And also knowing you have that ability, but many other (very clever) people have no idea at all......  :thumbup:

David D
Title: Re: 9x20 Lathe repair....
Post by: Bernd on June 17, 2009, 08:46:34 AM
Quote
They just buy them here and think they'll get skinny by owning it and not walking on it. Then they find out they have to walk on it and get rid of it.         :lol: :lol: :lol:
Isn't that "stereotyping" Bernd?  :lol: 

Ralph.

Ya it is, but the truth often hurts.  :lol:  :lol:

I'm not that big eith at 175lbs. and about 5' 7" tall.

Bernd
Title: Re: 9x20 Lathe repair....
Post by: CrewCab on June 17, 2009, 11:16:18 AM
Well done mate, good to know your not short of spare belts to  :thumbup:

CC
Title: Re: 9x20 Lathe repair....
Post by: John Rudd on July 08, 2009, 09:46:27 AM
I know this is a bit late in the day...but I made new bushes for my clutch pulley assembly on my 9*20...using the lathe itself...Just transfer the drive from the spindle/clutch pulley to the spindle/motor pulley..

Spindle speed may be a little faster but hey it worked...and no need for a second machine
Title: Re: 9x20 Lathe repair....
Post by: Divided he ad on July 09, 2009, 11:27:39 AM
 :lol:..........  :doh:  ............  :lol:



Fair do's John..... I was so annoyed and flustered over the damage to the machine and the loss of the time I was going to spend on projects in there that evening that it never even crossed my mind..... It'd have worked perfectly!   ::) 


Still....Positive side, me little Peatol got an oiling and workout   :dremel:






Ralph.