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Working U-Joints

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  • Member since
    August 2006
  • From: Oromocto, Canada
Working U-Joints
Posted by Gun Tech on Saturday, March 31, 2007 10:31 AM

While I was working on my 105mm LeFH18(sf) auf Geschutzwagen 39(H) from Trumpeter, I came across a real ugly looking part that was suppose to be a drive shaft. The alignment of the kit's component was also bothering me.

 

So I decided to make tiny working U-Joints. Big Smile [:D] It will fix the alignment problem and looks better at the same time.

I first tried with styrene, but it was too flimsy. I wanted then to use PE..... too hard to drill.....    I used aluminum foil (the same as a pizza plate) and cut a long 1/8 strip, and then made several little cuts of 5/16 long, rounded off the corners, and curved it while keeping the end straight.  
I then drilled a hole on both sides.  I used a piece of wire, inserted it in, then roughed the end to make a mushroom head to avoid to glue the pin in the aluminum brace. When 2 were completed, I just glued the 2 wires together at 90 degres.   ET VOILA!!   A working miniature U-Joint.  Big Smile [:D]

 

 

Jean-Michel    "Arte et Marte"

  • Member since
    September 2005
  • From: beacon falls , Ct.
Posted by treadwell on Saturday, March 31, 2007 11:03 AM
that is awsome dude!-- there is gonna be alot of cool things to learn from this threadBig Smile [:D]--tread

   

 

  • Member since
    September 2003
  • From: South Central Wisconsin
Posted by Daywalker on Saturday, March 31, 2007 12:19 PM
That is a great idea!  Gonna have to remember that one.

Frank 

 

  • Member since
    January 2003
  • From: Peoples Socialist Democratic Republic of Illinois
Posted by Triarius on Saturday, March 31, 2007 1:10 PM
Very nicely done!

Ross Martinek A little strangeness, now and then, is a good thing… Wink

  • Member since
    March 2006
  • From: Drummondville, Quebec, Canada
Posted by Yann Solo on Saturday, March 31, 2007 2:57 PM
This is insane Jean-Michel.  You are very talented.
No matter where you go ....... there you are.
  • Member since
    December 2002
  • From: Northern California
Posted by jeaton01 on Sunday, April 1, 2007 3:50 PM
can you put your camera on a microscope?  Those parts are too small to see!

John

To see build logs for my models:  http://goldeneramodel.com/mymodels/mymodels.htm

 

  • Member since
    March 2004
  • From: Belgium
Posted by DanCooper on Tuesday, April 3, 2007 3:00 AM

Is there no Macro mode on your camera ? I can see something, but I'm affraid it's too small to say something usefull about them.

However, if you're talking about that allignment problem, are you absolutely sure that is is a mistake ? The reason I ask is that I've read something similar on another thread, but it turned out to be ment this way. 

Skypename : Baldwynn If only my soul weighted more than 3 gramms, I would be happy to sell it...
  • Member since
    August 2006
  • From: Oromocto, Canada
Posted by Gun Tech on Tuesday, April 3, 2007 12:51 PM

Thanks a bunch guys! Big Smile [:D]

 

 DanCooper wrote:

Is there no Macro mode on your camera ?

Yes there is Dan, and I was using it. These 2 shots were the best of a serie of about 20. I think I might need more practice with it however.

 DanCooper wrote:

However, if you're talking about that allignment problem, are you absolutely sure that is is a mistake ?

Not sure at all. But the pictures I found from the vehicle in Saumur shows that the shaft is almost parallel with the hull side.

I looked at comparision between both the Bronco and Trumpeter's offering on http://www.perthmilitarymodelling.com/ , and they show a missalignement indeed. However, mine looked a tad more off than shown in their review and just painfull to look at.

I guess I could had fixed it by sanding the  left side of the rear panel and then fill in the resulting gap on right side, a pain in the neck IMO, but I wanted something better looking than that kit part.

Keeping in mind that this one is a opened top SPG with a lot of the interior that will be seen, it seemed the best course of action for me.

Jean-Michel    "Arte et Marte"

  • Member since
    January 2005
  • From: Ohio
Posted by mikepowers on Wednesday, April 4, 2007 9:29 AM

That is way too small and your insane.

And brilliant!!!

  • Member since
    December 2002
  • From: NYC, USA
Posted by waikong on Thursday, April 12, 2007 8:50 AM
Amazing, I love it!

My website: http://waihobbies.wkhc.net

   

  • Member since
    August 2006
  • From: Oromocto, Canada
Posted by Gun Tech on Saturday, May 19, 2007 2:36 PM

Finally installed the drive shaft and the joints.

 

Jean-Michel    "Arte et Marte"

  • Member since
    January 2005
  • From: Ohio
Posted by mikepowers on Monday, May 21, 2007 9:31 AM

Awesome Gun Tech, could you make a little diagram on how you did that?

I'm not quite getting it but it looks like an amazing peice of scratchbuilding that I would like to try.

Mike

  • Member since
    December 2002
  • From: NYC, USA
Posted by waikong on Monday, May 21, 2007 12:05 PM
Great to see it installed, but please don't tell me you are now going to cover that up so that it can no longer been seen!

My website: http://waihobbies.wkhc.net

   

  • Member since
    August 2006
  • From: Oromocto, Canada
Posted by Gun Tech on Monday, May 21, 2007 4:46 PM

 waikong wrote:
Great to see it installed, but please don't tell me you are now going to cover that up so that it can no longer been seen!

Thanks. Don't worry though, so far it looks like a lot will be seen.Wink [;)] I would say at least 3/4 of it in plain view.

Jean-Michel    "Arte et Marte"

  • Member since
    August 2006
  • From: Oromocto, Canada
Posted by Gun Tech on Monday, May 21, 2007 4:51 PM
 mikepowers wrote:

Awesome Gun Tech, could you make a little diagram on how you did that?

I'm not quite getting it but it looks like an amazing peice of scratchbuilding that I would like to try.

Mike

Thanks Mike, I will try, may take a little while though. Big Smile [:D]

Jean-Michel    "Arte et Marte"

  • Member since
    August 2006
  • From: Oromocto, Canada
Posted by Gun Tech on Monday, May 21, 2007 7:20 PM

Here we go Mike. Drawing is not one of my talents. Hope it still looks a bit clearer this way.

Front view of one of the assembly:

Side view of the same one:

Important! Do not glue the wire in the aluminum strip. I roughed each end with a jeweller's file.

 

When you have 2 completed, you can glue the wires to each other, at 90 degrees.

 

 

Hope it helps Smile [:)]

Jean-Michel    "Arte et Marte"

  • Member since
    January 2005
  • From: Ohio
Posted by mikepowers on Monday, May 21, 2007 8:42 PM

Ahh, that clears up a few things.

Thanks Gun. I appreciate it.

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