Carbon Limestone Co.

[Chris333]

What mechanism are you thinking of for the Whitcomb?

Same old thing I used on the Plymouth:
http://www.searails.com/powermax.html
The hood might end up being slightly too wide, but what else am I gonna do. 


Here is where I'm at with the new 12x48" layout base:


And the huge a$$ rubber rock casting from Cripplebush that I will use part of for the quarry walls:


And also lets not forget Jason 3Ded up some dump cars for me:
http://www.shapeways.com/model/1555435/chris-s-hopper-4-pack.html?li=search-results&materialId=61

[Chris333]

PPD turned my drawing into brass:


So I started trying to make a Whitcomb.

You can see the wheels don't line up with the frame journals. I actually drew them further apart than they should be, sort of split the difference, and hope they don't look so bad when done.

And here is the Searails chassis tucked in to the frame.

The locomotives frame is only 1.3" long 

The hood is also a little bit too wide because of the motor:


I was able to skip the grill because of the home made shutters mounted to the front. So the "grill" is just a slab of styrene that was rounded off.


And this is the air compressor


Someday it might look like this.

[Chris333]

I should also note that I have no scale drawings or any drawings or dimensions at all of this locomotive. It is a 25ton 25DM42a model and there are drawings for a 25T Whitcomb in the diesel cyclopedia, but it is a much older model. I did go off of that drawing for the overall length and then sized this photo to it:

When I did that the wheelbase of the photo matched the drawings so I figured I was on the right track.    I traced what I could off the photo into autoCAD and guessed the rest. So it's not perfect. Unless someone can get me scale drawings I will just live with it.

[Scottl]

What scale is this?  Wow.

What do you bend the brass with?

[Chris333]

What do you bend the brass with?

Most everything has half etched lines on the back so it is pretty easy to fold right on the line. I use a small pair of flat pliers. The hood is freestyled a bit, but there are tabs in the frame to locate it. The cab roof will end up being aluminum since it forms curves much easier.

[GaryHinshaw]

It looks like you used a sequence of fold lines to get a smooth curve in the main hood bend.  Very nice!  This is awesome work Chris.

[Scottl]

Thanks, really tremendous work.  It reminds me of people scratching in On30.  A coin for scale would set me straight.

[Philip H]

Well, to be fair to Chris, the thread's title is "Nn3 Carbon Limestone company"   

[Scottl]

Ha, I'll be less obtuse.  Chris, you make it look like you are modelling in a much larger scale.  Excellent work.

[timwatson]

What mechanism/motor are you using in that little beastie?

[VonRyan]

Darn good looking Whitcomb.
Can't wait to see it all done up and painted.

Maybe you should consult with Max for doing some of the finer details... I'm sure he probably has a thingamajig that'd be a great stand-in for the whoseamacallsit.


-Cody F.

[Chris333]

What mechanism/motor are you using in that little beastie?

http://www.searails.com/powermax.html
It have very fine 0.1mod gears and runs pretty good. Only trouble spot is getting one with a wobbly wheel.



So I'm looking at the shutters I made and they look huge. I used .030" spacing clapboards, that is the smallest they make. Any other ideas for the shutters?

[Scottl]

The Trainworx SD70M-2 kit had etchs that you bent into shutters from a single piece of metal.  You have already done your etches, but it works well.

[160pennsy]

So I'm looking at the shutters I made and they look huge. I used .030" spacing clapboards, that is the smallest they make. Any other ideas for the shutters?

This might be worth a try....Pikestuff N 541-8108 Louvered Wall Vents

[timwatson]

@Chris333 what about diesel louvers. Like some wide ones on say an Arnold S-2 or something similar?

http://d.pr/i/hDSk