Tim Schwartz tschwartz

Well since it was snowing all day I stayed in side, completed my changes to my 3D print file for the steeple cab and sent it to Shapeways for printing.

on%20cut.jpg 

This is a view of the STL file from the current model. I did not realize I reduced curves significantly until I got my print. The curves on the end are triangular and so I made sure on my current version that I fixed the STL file I sent to the printer. In this view you can also see where I left room for 2.5mm square metal stock to add some more weight to the locomotive.

IMG_1871.jpg 

In this view you should be able to see print lines marked by the blue and red lines. Those have been sanded so now. The blue arrow points at the brass stock I placed inside the cut to show how it will fit inside the frame of the body. Finally you will see the red arrow pointing to my upside down coupler. That is top set short shank  whisker coupler pretending to be an under set version. I think that will be the best for coupler height.

The wheels on the HH600 are 42 inch, while the steeple cab should be 46 inch. I put 45 inch NWSL wheels on my display version, but it doesn't look like they make something that will fit this atlas model. Does any one know if there is a substitute out there?

IMG_1869.jpg 

 

I also added blocks to allow screws through the frame to hold the body square to the frame. This feature is added to the new version of the cab. 

Other things I was up to this week was to clean all the holes for grab irons, I got my head lights and figured out how to mount the LED's into them. Pantograph has been ordered but is back ordered. Bells should be in the mail. I pretty much do all my ordering on line as the closest hobby shop is 5 hours away, and they don't stock the super details anyway.

Since the weather is supposed to be poor all week, I hope to get all the hand rails and grab irons in, possibly my Micro Mark rivet decals done, and I have to see if I can figure out how to make the side arm pantographs as I can't find anything like that on line.

 

Until next time,

 

Tim

Tim Schwartz Having fun in HO
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Reply 0
Pflarrian

Pantographs

Hello,

 

Having spent a LOT of time perusing pantographs online, Sommerfeld makes some nice ones, but I have never seen a model for an offset one. Perhaps a Faively single-arm type with the contact pad turned a little?

Reply 0
Tim Schwartz tschwartz

Pantograph

I have used the Sommerfeld on display models. I was thinking of using a cut down trolley pole and a brass shim for a contact pad. I know how much they stuck out the side for length.
Reply 0
William Flatt

3-D printing costs

Generally, what are the costs for this type of model construction, assuming one is able to undertake the drawing oneself? 

Reply 0
William Flatt

3-d info

Where is a suitable source for information as to how to draw for model railroad equipment, like trolley cars.

Reply 0
Tim Schwartz tschwartz

3Dprint info

Well I am no expert in 3d printing so I will refer you to Shapeways.com where I get my info. Costs are by cubic cm of material. I have been printing using "FUD" acrylic. It produces the finest detail. FUD is frosted ultra detail. As for drawing in 3d, you need to understand a bit of CAD. Some people use google Sketchup as it is free. Then either you need a drawing, or lots of photos that you can scale from. Or find some one to do all the drafting for you.
Reply 0
DKRickman

Learning to draw

Quote:

Where is a suitable source for information as to how to draw for model railroad equipment, like trolley cars.

If you use Sketchup, there are plenty of tutorials on YouTube, as well as a variety of web pages describing basic techniques.  After that, there's no substitute for practice.  That's 90% of the reason I made drawings of proposed models such as my little 2-4-2 and a dream shop building.  While I don't really need 3D drawings of them, it's an excellent way of learning how to draw various things.  The key is to push yourself, trying a new technique or shape with each new drawing.  CAD software in general has a very steep learning curve, but once you've begun to master it you'll find it's incredibly powerful.

Ken Rickman

Danville & Western HO modeler and web historian

http://southern-railway.railfan.net/dw/

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