1/6 1943 Stuart M5

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Postby Tech-Com » Sun Feb 17, 2019 7:49 am

I took lots of measurements from real photographs and designed them as full scale tracks.I then reduced the scale. I had to guess on the text I could only make out a few digits from the photograhes and most of the photos I saw had the forging text rusted away.

I may see if I can cnc a mold, curious how detailed I can machine the forging codes.

Here is my design based on real photos compared to Popzoltan's thingiverse design.

my_pad_01.jpg
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Last edited by Tech-Com on Sun Feb 17, 2019 12:43 pm, edited 2 times in total.

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Postby Tech-Com » Sun Feb 17, 2019 9:06 am

PainlessWolf you asked if Popzoltan's tracks from thingiverse would fit? The designer (Popzoltan) made them specifically for the 1/6th stuart. I'm not going to print his out since I wanted to make my own, but I did load them in 3D to see if they fit, and they appear to be a very nice fit.

thingiverse_tracks.jpg

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Postby Tech-Com » Sun Feb 17, 2019 12:20 pm

Unfortunately I discovered a problem with the RC version of the stuart that makes installing popzoltan's tracks impossible without additional modification. PainlessWolf has made modifications to his return rollers, but I'd have to know the exact dimensions to know if they can work with Popzoltan's version.

It would clearly collide with how the stock RC version is designed unless these rollers are modified.

Notice the bottom purple shoe is inside the shaft of the return roller, this area of the shaft would have to be modified to clear it.

track_problem_00.jpg
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Postby PainlessWolf » Sun Feb 17, 2019 7:25 pm

Good morning,
You have to reduce those roller mounts to be sure. The tracks I am currently using are the one piece nylon\metal reinforced one piece tracks from the static 1/6 Stuart. The horns on the end track connectors now clear my return roller shafts nicely so any cast or printed accurate track will do so as well. In the Steinbrunn book, he recreated the actual mount type with the indent in brass. Lacking a machine shop, I went my way and it works
regards,
Painless
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This shows the spacer and stabilizer mount I came up with.  Everything is curing overnight having used LocTite 24hr epoxy..jpg
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Postby Aljones34 » Tue Feb 19, 2019 10:51 pm

As always great information to look over.

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Postby PainlessWolf » Tue Feb 19, 2019 10:59 pm

Good afternoon,
Aljones, Thanks! I'm hoping that between these two 3d Printer fellows, that an affordable set of Link Tracks will be in the offing.
regards,
Painless
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Postby Max-U52 » Wed Feb 20, 2019 6:22 pm

I'm still trying to figure out how I can get enough range on my hetzer to drive it out there to Colorado and pepper that puppy with paintballs. @)

And there's an interesting expression, pepper that puppy with paintballs. Seems to just roll right off the tongue. @) :haha: :haha: 8)
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Postby PainlessWolf » Wed Feb 20, 2019 6:40 pm

Good morning,
Enjoy that Hetzer, sir. It does roll right off the tongue! Sort of like "Pour Powder, Place Wad, Place Ball, Ram, Cap, Fire!"
regards,
Painless
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Postby Tech-Com » Sun Feb 24, 2019 4:18 pm

Painlesswolf, would you be able to provide measurements off your corrected barrel so I can turn a new one for mine?

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Postby PainlessWolf » Sun Feb 24, 2019 9:38 pm

Good afternoon,
Here you go in Standard Measurements:

Complete Length: 8" (Barrel and Sleeve assembled)

Barrel Sleeve Length: 2.25"
Outer Diameter: .63"
Inner Diameter: .50"

Barrel Length (including inner brass for servo attachment: 8.63") ( Exterior Length from Sleeve Insert: 5.75" )
Outer Diameter from Sleeve insert: .44" Tapers to .38" at the muzzle which has a slight flare to it
Bore Diameter: .25"

regards,
Painless
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Postby Tech-Com » Mon Feb 25, 2019 12:30 am

Does this look right. I only need the measurements from the mantle.

m5barrel.JPG
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Postby PainlessWolf » Mon Feb 25, 2019 5:31 am

Good evening,
Yes. Those measurements and the general barrel shape are spot on.
regards,
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Postby PainlessWolf » Sun Apr 14, 2019 2:00 am

Good afternoon,
Since new tracks are in the works, some one piece ( with no glued on washers ) track return rollers seem appropriate as well. Here are the roller measurements pics.
(Click pics to enlarge )
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A.jpg
A
B.jpg
B
C.jpg
C
D.jpg
D
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