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Tractors and crawlers
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 Posted: Sun Jun 4th, 2017 06:28 pm
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slateworks
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As I haven't posted on my own activity for a month or so I thought I'd do an update with another "oddball" I've been working on. I thought Updah's sawmill needed a lumber carrier but just like the Faux-Holt tractor I showed earlier in this thread, the very nice Wiseman/McKenzie Iron and Steel model

http://www.locopainter.com/store/product.php?id=1289
 
was too rich for my wallet and I decided to build my own.

So,starting with some plans found on the 'net for a Gerlinger version,


b (2) by slateworks, on Flickr


b (3) by slateworks, on Flickr

 I set about acquiring some "bits" to get me started with a cheap 1/43 Fordson tractor,


c (1) by slateworks, on Flickr

the remnants of the tread plate from the Holt build,


e by slateworks, on Flickr

some brass tubing and coil springs found in the bits box,


e (6) by slateworks, on Flickr

some deep U section styrene which was bent round the handle of a craft knife into a set of U shapes with a hair dryer


f (2) by slateworks, on Flickr

and some 18.5mm double spoked wheels from Langley Models,

http://www.langleymodels.co.uk/shop/sh000001.pl?REFPAGE=http%3a%2f%2fwww%2elangleymodels%2eco%2euk%2fshop%2fss000001%2epl%3fpage%3dsearch%26PR%3d%2d1%26TB%3dA%26SS%3do%20scale%20wheels%26ACTION%3dquick%20search&WD=scale%20wheels%20cart&PN=Wheels%2ehtml%23a1000004#a1000004

the last three of which items made up into running wheels and suspension legs.


f (4) by slateworks, on Flickr

Having measured and scaled the drawings, the tread plate was cut out to form the main chassis panel and the now dismantled tractor power plant test fitted.


e (2) by slateworks, on Flickr


e (3) by slateworks, on Flickr

Again, using the drawings as a guide (nothing I make is a true copy so any researched information is literally just a guide!), the rest of the chassis frame was built up from styrene strip and mouldings and overlaid with Archers Rivets.


h (1) by slateworks, on Flickr


h (2) by slateworks, on Flickr

Additional springs and collets were added to the suspension legs, domestic O rings added to the wheels as tyres, threaded brass rod was added to represent the screw lifting mechanism for the lumber carrying "jaws" and the tractor's original steering wheel was fitted to a new styrene steering column.


k (4) by slateworks, on Flickr

A driver's seat was made from a cut down Model T car seat and some styrene rod to fit on top of the tractor's differential cover and the tread plate


l (5) by slateworks, on Flickr


l (6) by slateworks, on Flickr

and the steering mechanism was made up from styrene strip, rod, sewing pins and odd gears from the bits box.


j (8) by slateworks, on Flickr

More styrene rod, various now defunct Bachmann rail truck gears and old guitar string end knobs were then used to make a representation of the drive to the lumber lifting mechanism.


l (9) by slateworks, on Flickr


m (8) by slateworks, on Flickr

Various plastic gears from China were then built onto the rear suspension legs and the tractor primary drive shaft using Crow River Products bearing pillow blocks and onto the inner face of the rear main wheels whilst smaller gears were used to represent chain tensioners.


o (6) by slateworks, on Flickr


o (8) by slateworks, on Flickr

The whole contraption was then given a spray of Halfords red primer as a top coat and some light weathering with Artitec weathering powders.


p (2) by slateworks, on Flickr


p (3) by slateworks, on Flickr

As far as the chain drive is concerned, I've picked up a reasonably priced length of fusee clock chain which I reckon I can get to fit round the drive gears - I can see that the chain tensioner gear will need to be raised a little.


o (9) by slateworks, on Flickr

However, before I can do that, I need to work out how to separate links without causing too much collateral damage so that I can split the chain into useable lengths. In the absence of any real advice from the watch and clock fraternity, my present thinking is to try to use a gear puller to push the pins out of their mounts and for that I'm waiting on delivery of a 0.7mm thimble for the puller.

Last edited on Sun Jun 4th, 2017 11:06 pm by slateworks



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 Posted: Sun Jun 4th, 2017 10:03 pm
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Si.
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Hi Doug :wave:


Simply MORE awesome than AWESOME ! :bg:


Another Updah 'mechanical monster' takes to the woods !! :shocked:


Brilliant step-by-step Doug.

*****styrene work as well ol' bean. ;)


I think Herb used to 'stunt ride' motorcycles through the middle of those.

What a C O O L model. :cool:


:moose:


Si.



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 Posted: Sun Jun 4th, 2017 11:09 pm
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slateworks
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Thanks Si and she should be on the prowl in a week or so depending on the chain work. Updah does have more than its fair share of monsters I guess but at least they're all useful - in Updah that is!

Last edited on Sun Jun 4th, 2017 11:10 pm by slateworks



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 Posted: Wed Jun 7th, 2017 05:41 pm
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slateworks
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Well, the lumber carrier's chain drive is now in place, the fusee chain having created all sorts of little issues but for me, worth it in the end.


q (1) by slateworks, on Flickr


q (2) by slateworks, on Flickr


q (3) by slateworks, on Flickr


q (4) by slateworks, on Flickr


q (5) by slateworks, on Flickr

Now to decide what oddball to try next.

Last edited on Wed Jun 7th, 2017 05:45 pm by slateworks



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Doug
Updah Creek http://www.freerails.com/view_topic.php?id=7457&forum_id=4&page=1
My Flickr albums https://www.flickr.com/photos/33431492@N04/albums
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 Posted: Wed Jun 7th, 2017 06:59 pm
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Si.
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Hi Doug :wave:


Updahs mechanical monsters might scare the $4!7 out of the tourists ...

... but so does "sorry no mosquito spray" at the local store. :shocked:


It is an Updah MASTERPIECE for sure !!


I just wanna see a 1:48 Herb on 2-wheels, blasting through the middle ! ;)


:moose:


Si.


The flippin' fussy fiddly fusee looks a treat BTW :bg:



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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Wed Jun 7th, 2017 11:15 pm
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slateworks
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Thanks Si. All just a bit of fun really



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 Posted: Fri Jun 9th, 2017 08:01 pm
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Alwin
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Hi Doug,

Great carrier! Little point of critic, the steering rods are not aligned with the wheels. But I noticed that only in your last photo from above.

Great piece of modeling.

Alwin

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 Posted: Fri Jun 9th, 2017 11:07 pm
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Lee B
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Alwin wrote:
Great carrier! Little point of critic, the steering rods are not aligned with the wheels. But I noticed that only in your last photo from above.


I noticed the same right away, but I doubt anyone will see it on the layout.
Such a neat project!




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 Posted: Fri Jun 9th, 2017 11:13 pm
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slateworks
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Many thanks chaps. In fact the wheels should be pointing dead ahead and they somehow got moved in placing the contraption! The suspension legs are relatively free to turn whereas the rods are actually glued solid. Thanks for looking and commenting, much appreciated.



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Updah Creek http://www.freerails.com/view_topic.php?id=7457&forum_id=4&page=1
My Flickr albums https://www.flickr.com/photos/33431492@N04/albums
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