MadModder
The Shop => Tools => Topic started by: Gerhard Olivier on September 19, 2009, 08:37:59 AM
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As I will need do make a couple of ball + ball handles I decided to improve the ball cutter
(http://i608.photobucket.com/albums/tt161/geroli/Madmodder/Mods002copy.jpg)
This is sold as a trailer bearing for about 2 quid with delivery -ebay
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0002-2.jpg)
SO i made a cut in the base to house the ring of the bearing leaving the center stub to be able to lock with m8 allen bolt later.
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0003-2.jpg)
Note deeper section for the bearing cage to clear.
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0004-2.jpg)
Making the base of ALi is stead of the mild steel plate this is so that the top-slide holder is the same as the ball holder and the same studs could be used simly swapping one for the other.
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0005-3.jpg)
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0007-1.jpg)
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0008.jpg)
At the bottom of the base I put 1 angular contact bearing ( skateboard) to allow the bolt to run on bearing as well - in theory that would mean I can tighten it all up well and still have it rotate freely
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0009.jpg)
This shows the clearance so that all the presure is just between the two bearings.
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0010.jpg)
End result A ball cutter that looks very much the same but works a lot better.
(http://i608.photobucket.com/albums/tt161/geroli/BallTurner.jpg)
Gerhard
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Nice mod.
I'm going to have to make one of those if I can get it to the top of my Round-to-It list. :)
Andy
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Nice mod.
Yep! :clap:
I'm going to have to make one of those if I can get it to the top of my Round-to-It list. :)
Andy
Me too! ::)
David D
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Nice mod.
I'm going to have to make one of those if I can get it to the top of my Round-to-It list. :)
Andy
Andy
Follow these 3 simple steps and you will have it finished in short order. :coffee:
Step 1. Place item in question on bottom of Round-to-It list. When writing it on be sure to write it backwards and upside down (trust me on this). :med:
Step 2. Turn Round-to-It list upside down. :scratch:
Step 3. Get off your butt and start working on your Round-to-It list before your SHMBO comes along and add something above this which will effectively trump this. :poke:
There Andy, that wasn't so hard was it. Quicker than you thought. :ddb: :ddb:
Cheers :beer:
Don
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Thanks chaps
This has made such a differance. It worked fine before but it took some power to rotate now it is just such a pleasure to work and it is easier to attach to the lathe as well.
Just cut a 40 x 20mm wheel with a 10mm radius as seen in cross section ( a round flat ball) and drilled 8 -- 5mm holes at 45 degrees apart and tapped them all M6 and broke the tap off deep in the last hole. :(MAYBE I SHOULD HAVE MADE A TAPING WITH CARE GADGET INSTEAD :(
Gerhard
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Nice mode on the ball turner Gerard :beer:
:hammer: don't you just hate it when you don't have that tapping gadget yet :scratch:
:beer: Arnold
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Nice work Gerhard :thumbup:, I feel I will soon be looking in my box of old tapered bearings!
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Pretty smooth mod you got there!
:mmr:
Eric
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Thanks chaps im buzy designing one for my wood turning lathe.
It is a bit more difficult as there is no cross slide but it should be possible. I want it to have a 6 inch max down to 1 inch min radius
The scrap bin has a lot of say in the design
Gerhard