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December 4th, 2017, 05:08 AM   #1
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Joined: Nov 2012
From: Sweden

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I Ride: HB 570 FE
Sunday fun modifying a swing arm.

Had a bit of machining fun yesterday along with the compulsary bull shit stories and some "Lussekaka" (Swedish saffron kake, namnam).
On the shelf was this swingarm that was in good nick but it was for a narrow cased KTM 450 SX -08. This is the same exact casting as the 570 but too narrow to accept the 570 engine.
So I brought it over to a friend that has a lathe and some other nifty bits of machinery to have a look at it, but (of course!) things got out of hand and we ended up machining it to fit the 570.
Idea was to make a pair of nylon bushings to accept a 19mm steel rod, this in turn would be fitted with a cutting steel, that would first cut the full diameter and secondly cut the inner portion for the distance.



Stuff manufactured:


Cutter modifier:


Setting the cutting diameter:


In the lathe:


Result:

Last edited by TomTom; December 4th, 2017 at 05:10 AM.
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December 4th, 2017, 08:50 AM   #2
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I Ride: Two FE570 -12
That's the way to survive this dark time of the year
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December 4th, 2017, 09:28 AM   #3
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Joined: Nov 2012
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I Ride: HB 570 FE
Originally Posted by jon andersson View Post
That's the way to survive this dark time of the year
Exactly, I havent done much of it since I moved to this location a year ago, such a blast to discuss how to do it and then actually make the tools and finally make it happen, very satisfying and FUN.
Most likely the inhereted blacksmith is VERY happy inside hehe.

Last edited by TomTom; December 4th, 2017 at 09:33 AM.
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December 4th, 2017, 10:41 AM   #4
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Joined: Nov 2012
From: Sweden

Posts: 438
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I Ride: HB 570 FE
Swing arm is in the bike sucessfully
Bearing distance (spacer eng?) with the endcaps fully together no play in the swingarm = goal, so we managed to measure the depth to cut it accurately, very happy!

Last edited by TomTom; December 7th, 2017 at 10:45 AM.
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