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Scratch Building In 2019 With 3D-Printed Parts
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 Posted: Mon May 13th, 2019 10:24 pm
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tebee
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OK use this part instead of the original.
 
You'll probably need bearings if you use pinpoint axles.


Scale everything at  13.7/48 = 0.2854  when you print 


Tom


Attachment: bf12 b 78 on30.zip (Downloaded 5 times)



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 Posted: Mon May 13th, 2019 10:28 pm
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tebee
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@John Ray

People on the 7/8ths Lounge have suggested the truck will not be strong enough. 

How strong do you think the 7/8ths version you printed is ?

Please can I borrow your photo to show them ?

Ta

Tom




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 Posted: Tue May 14th, 2019 12:44 am
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Sean W
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I started designing archbar trucks a few months ago...

Kinda abandoned the project, wasn't coming together the way I hoped.





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 Posted: Tue May 14th, 2019 01:38 am
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John Ray
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Tom, 

Your truck is very strong, it has a very robust web.
If you needed it to be stronger or more resilient,
you could change the material to PETG, ABS, or even nylon.

You are more than welcome to use the photo.
The truck as you see it is exactly how it came off the printer.
I only trimmed away the brim that holds it down to the build plate.
As shown, there is no glue holding it together, everything is a press fit.

If you need more photos, let me know.
If you want them, I could mail you the pieces I printed,
and you can test it for yourself.

John R.


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 Posted: Tue Oct 8th, 2019 12:36 am
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John Ray
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Sean,

I had a heater failure,
then a bunch of delays keeping me away from printing for a few months.

I've been printing now for about a month,
and have just completed a couple of fun projects which I will detail in my next post.

I am still very interested in obtaining a copy of the file you used to create your chassis,
if you are still willing to share it.

Thanks,

John


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 Posted: Tue Oct 8th, 2019 01:43 am
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John Ray
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1:29n3 tool car, I've been back to 3D printing.

I have 2 active projects, one, a tool car for a small mining operation,
the second is a small industrial loco for the same mine.

The car finished today (still needs some more weathering)
the loco will be finished in about a week, unless I get a super burst of energy,
then it would be ready sooner.

The flatcar portion of the tool car is from a very talented designer,
that goes by the user name of TrotFox, on Thingiverse.

The original design was in Fn3, all I had to do was re-scale it to my scale. 
This is a very complete design that prints as you see it here:





The tool crib portion was designed by another very generous designer on Thingiverse,
that goes by the user name of Raby.
The original design was for a bobber caboose, which I remixed into the tool crib.





The trucks are temporarily Athern "O".
The brake wheel and couplers are from Ozark Miniatures.

Now, just to give you an idea of the variety of useful files that can be found on Thingiverse,
here are some of the detail files seen in the images above:

Barrels...from Thingiverse user Nathansmind
Gas cans...from Thingiverse user hOunskull
Box crate...from Thingiverse user Firestryfe
Wire rope...from Thingiverse user Tomebl
Hit &miss...from Thingiverse user ringmaster

With the declining number of suppliers, or in my oddball scale vertially none, 
3D printing has been a godsend.

I am not a tech guru, but was able to learn this machine,
with the help of the outstanding groups on forums as well as FB.

If you are considering 3D printing, I hope you, or you and train friends, give it a try.

If you do not want to buy a machine for yourself,
there are many "maker" groups as well as libraries, that allow access to their machines.

Regards,

John R.


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 Posted: Tue Oct 8th, 2019 12:05 pm
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Si.
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Hi John  :wave:


NICE ! ... Looking car build !!  :old dude:



I thought about 1:35n3 scale ...  ???

... before deciding eventually on 1:35n2.  L:



Using O-scale track & I guess wheelsets etc. is  C :cool: :cool: L .

1:29 is not so far away from 1:32 either.  :dt:



Are those Link 'n' Pins you've installed ...  ???

... Russ Simpsons ol' 1:24 'West Side Lumber Co.' ones by any chance ?  L:

Or maybe 3D-printed ?  ???



:moose: :moose: :moose: :moose: :moose:



Si.




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 Posted: Tue Oct 8th, 2019 02:26 pm
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John Ray
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Good eye, Si !

Yes those are Simpson couplers which I mis-attributed above.

Though I've been building my own trucks,
using "O" track (and some Peco SM-32) has been very convenient.

"O"-gauge at 1:29 works out to 36.25 inches,
which is pretty darn close.

I started building a limited number of 1:29 narrow gauge items,
to be used in conjunction with the 1:29 standard gauge I have.

Right now everything sits on a shelf.
I hope to incorporate all the 1:29 in an eventual rebirth of my garden layout.

John R.


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