Author Topic: Repairing a Cub Lathe  (Read 72161 times)

Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #25 on: January 24, 2010, 02:10:54 PM »
Hi ALL

A bit more progress , not allot , but still moving forward , i turned up the change wheel blank and bored . i fitted the slotting attachment to the lathe , so please i made the slotter,  it works a treat .  :D


marked off the bull gear every 10 , to give six devisions

all set ready to go

first one cut

all done



then i turned up a mandral ,and turned the O/D of the gear


still a bit of turnning to do to the blank

Cheers Rob




Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #26 on: January 25, 2010, 05:45:37 PM »
Hi Lads

Finished of the turnning on the gear blank , set up for gear cutting



One down



Cheers Rob

Offline slowcoach

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Re: Repairing a Cub Lathe
« Reply #27 on: January 25, 2010, 05:54:03 PM »
Brilliant Rob, just brilliant  :bow:

Right thats it, I'm going to make some change gears for my Harrison  :)

Rob  :thumbup:
« Last Edit: January 25, 2010, 05:58:49 PM by slowcoach »

Offline Darren

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Re: Repairing a Cub Lathe
« Reply #28 on: January 25, 2010, 05:57:05 PM »
Cut right first time, no mistakes, didn't need to start over again..... I'll get me coat !!
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline slowcoach

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Re: Repairing a Cub Lathe
« Reply #29 on: January 25, 2010, 06:03:13 PM »
Cut right first time, no mistakes, didn't need to start over again..... I'll get me coat !!

 I will turn the lights out mate  :lol: :lol: :lol:

Offline CrewCab

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Re: Repairing a Cub Lathe
« Reply #30 on: January 25, 2010, 06:16:23 PM »
Rob, as ever a joy to read  :thumbup: ................ great work mate  :dremel:

CC

Offline Dean W

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Re: Repairing a Cub Lathe
« Reply #31 on: January 26, 2010, 01:13:19 AM »
This is a great series, Rob!
That square hole.. way to use the old noodle, there.
You do nice work, all around.  Even threads, forward or backward.
: )

Dean
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Offline NickG

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Re: Repairing a Cub Lathe
« Reply #32 on: January 26, 2010, 06:45:18 AM »
Rob,

Fantastic work and loving the tool porn!

Nick
Location: County Durham (North East England)

Offline Stilldrillin

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Re: Repairing a Cub Lathe
« Reply #33 on: January 26, 2010, 12:09:14 PM »
By ek Rob!

That`s good work well shown.......  :thumbup:

David D
David.

Still drilling holes... Sometimes, in the right place!

Still modifying bits of metal... Occasionally, making an improvement!

Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #34 on: January 26, 2010, 05:37:34 PM »
Hi Lads

Thank's very much for your very kind comments , CHEERS  :nrocks:

Nothing to show tonight , all i managed was to turn up a gear blank , anyone who may want to cut some spur gears , may be interested in a copy of a gear data chart, i keep it around the shop , its a laminated ,scan from an old mag i have . I could not upload it to Madmodders , to large , if anyone could attach it here pleased do .
http://www.mediafire.com/file/grnityxwny0/Technical data sheet gears....pdf




Thanks Rob

Offline Darren

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Re: Repairing a Cub Lathe
« Reply #35 on: January 27, 2010, 12:56:50 PM »
Thanks for that Rob  :thumbup:

I feel another lamination coming on  :lol:


Knowing your affection for six splined gears you might want to take a look here .... no idea if they are the right ones though
http://cgi.ebay.co.uk/lathe-change-gears_W0QQitemZ200432988627QQcmdZViewItemQQptZUK_Home_Garden_PowerTools_SM?hash=item2eaabcb1d3
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #36 on: January 27, 2010, 01:09:15 PM »
Hi Darren

Thanks for posting the link   , i had a look , the O/D of the splines is too small ,its the same size as the bore on mine , same ,,,,,,,,,,,, They could be off a Harrison or Chipmaster.


Thanks Rob  :thumbup:

Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #37 on: February 02, 2010, 04:06:38 PM »
Hi Lads

well i have made a bit more progress with the lathe , i finshed the 72 tooth gear ,for the apron  gear box .
 
The gear still needs a few holes poked in it .

Cheers Rob

Offline Trion

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Re: Repairing a Cub Lathe
« Reply #38 on: February 02, 2010, 04:42:02 PM »
That gear looks awesome! You don't even get them that neat from suppliers!
Very good work, nicely documentated! :clap:

Offline Darren

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Re: Repairing a Cub Lathe
« Reply #39 on: February 02, 2010, 04:45:08 PM »
Hi Rob, looks great as ever ...  :clap:

A couple of questions if I may?

Did you cut the teeth to full depth in one pass or several?

Is that ordinary mild steel?

How long did it take?

Thanks
Darren
« Last Edit: February 02, 2010, 06:12:34 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)

Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #40 on: February 02, 2010, 05:08:30 PM »
Thanks Trion  :thumbup:

Hi and thanks Darren , any time  , The gears were cut with a comercial gear cutter and its always good practice to cut to FULL depth ,in one pass , the cutters last longer . The gear is made from  high carbon  steel ,  the same as the original gear , i did a spark test on the old gear . it took about 1 1/4 hours to cut the teeth . I also had the coolant on for the steel gear , no coolant for the cast change wheel .

Thanks Rob

Offline CrewCab

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Re: Repairing a Cub Lathe
« Reply #41 on: February 02, 2010, 05:15:38 PM »
Just stunning Rob  :bow:    am I right in thinking it's a very slow feed rate  :scratch:
CC

Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #42 on: February 02, 2010, 05:27:36 PM »
Just stunning Rob  :bow:    am I right in thinking it's a very slow feed rate  :scratch:
CC

Thanks  Dave ,spot on , slow feed ,low rpm's , I used 120 rpm's for the 20 DP cutter ,on  larger DP i use 80 rpms or slower . I am thinking about make an attachment for the 626 mill so i can cut some skew gears.


Cheers Rob

Offline Darren

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Re: Repairing a Cub Lathe
« Reply #43 on: February 02, 2010, 06:15:48 PM »
Thanks Rob, that will be very helpful in my next quest  :thumbup:
You will find it a distinct help… if you know and look as if you know what you are doing. (IRS training manual)

Offline ariz

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Re: Repairing a Cub Lathe
« Reply #44 on: February 03, 2010, 03:34:39 PM »
what a neat job you are doing here Rob   :bugeye:

very interesting to follow, thanks for sharing it


Offline Dean W

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Re: Repairing a Cub Lathe
« Reply #45 on: February 04, 2010, 12:52:26 AM »
Sure is a nice job on that gear, Rob.   You couldn't buy a better one.

Dean
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Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #46 on: February 21, 2010, 01:33:44 PM »
Thanks Lads  :headbang: :headbang:

Well things are going very slowly , but i have managed to do a bit today , the compound gear ,82t and 48t , the two gears are pressed together .


Cheers Rob

Offline Dean W

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Re: Repairing a Cub Lathe
« Reply #47 on: February 21, 2010, 07:23:28 PM »
It looks great, Rob.  Fine work.

Dean
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Offline Artie

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Re: Repairing a Cub Lathe
« Reply #48 on: February 21, 2010, 10:49:54 PM »
Your usual high standards mate, looking like a new unit soon!

Chhers

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Rob.Wilson

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Re: Repairing a Cub Lathe
« Reply #49 on: February 22, 2010, 03:44:52 PM »
Thanks Dean and Rob

I managed an hour in the shop tonight , after work . One more down ,the small pinion gear .



Two more gears to go   :ddb: :ddb: :ddb:


Cheers Rob