Sunday, November 20, 2016

Amherst 2016, Models from clinics, plus



Closer to the 2017 show than this years show.  Yes, I am at least that far behind.

There were several clinics at this years Amherst show that had structures as part of the clinic. Basically, make and take clinics.  I did not take the clinics, but helped present them, so I made these items at home.  Obviously, having all the time I needed, and was able to add details that one would not have time to do in a two hour clinic.  The details, however, could be added after you take the building home.

First up, the Basic Wood Kit.  This was a kit cut out on a Cricut, https://shop.cricut.com/.
 The kit was supplied with all the parts shown.  A little cutting and glue, and in two hours, 

 you have a nice lineside structure.  The roofing is paper.  I tried to use only the items we would have available at the clinic.  I did cheat with the 3D printed hinges.

 This is the one I built,  There was also a second clinic offered to detail the scene and the interior.

This kit was assembled and detailed by Joe Robertson, MMR., and is, to say the least, OUTSTANDING!





Scratch Built Styrene structure
This was the project, and was supplied with sheet styrene for the roof.

Since I was doing this at home, I designed and 3D printed rafters for the main building.  I 3D printed the shed roof in copper infused PLA.

I used paper shingles I drew and printed.  The styrene was painted with a paint pen, and weathered with various markers.



Wood Bridge, scratch built
This is a great little project, and fulfills two requirements for the NMRA Master Modeler Structures Certificate.  Something other than a standard building, and it is scratch built.

The project is finished up in a couple hours and ready to install.

DPM Kit

The Woodland Scenics Modular Learning kit, Link to Learning Kit, is on of the projects during the show.  There is also a clinic on building trees and one on scenery.  These three are FREE, presented by Woodland Scenics.
There are the parts for the kit.  If you are attending the Amherst show and model in HO scale, you should take the time to take this clinic.  It is given once on Saturday and once on Sunday.  


I built mine pretty much per the instructions.  I did add the roof drains that I 3D printed.

The weathering would not be done in the clinic, but the building and roof are painted as part of the clinic.


These free clinics are given in the stadium area in the building with the Woodland Scenics booth.

The left over junk.
When we were building the wood kit at the beginning, there were leftovers.  I threw them in my suitcase, and when I ran across them many months later, I figured I would kitbash something from the leftover parts. I ended up with this octagon shaped lineside structure.

I covered making the skylights in a previous post, skylights

I designed and 3D printed the bench with details.

Lots of details can be seen through the skylights.

The shovels were also 3D printed on my home printer.  They are not really good for foreground models, but they make a good representation inside the building.



One door will open toward the track, for a speeder, and the other has a ramp for vehicles.

If you ever get a chance to attend the Amherst show, don't pass it up!  The largest model railroad show in the US,  http://www.railroadhobbyshow.com/

Sunday, November 13, 2016

Gulf Gas Station, HO Scale, 3D Printed



There are several illustrations of Gulf similar gas stations, and I designed one closest to this one depicted on an ink blotter.  

The numbers in the upper right, are Tichy Train Group numbers and sizes for their stock windows.  I sized the openings to fit these windows, or in the case of the front windows, I did have to kitbash the windows, making them one windowpane narrower. (who knew windowpane was one word?)

I usually draw the complete item, then figure out how I am going to break it up for 3D printing.

Here is the exploded view.  With it cut up like this, I did not have to have any support material.

The major parts of the structure.  The center section was printed upside down, which eliminated an support material. Now they just need glued together.

There is not such thing as having to many clamps.  Since I printed this in ABS, it is easily solvent welded with Methylene Chloride.

I inserted sheet styrene for the roof before installing the top section.  Most of the time I prime the ABS with a primer with filler to help fill in and hide the layering.

Test fitting some of the 3D printed details for the outside and interior.

The finished building, sitting on a temporary base.

I added gutter and downspout to the rear.

I installed shelving on this side wall, across from the men's room.

I put angled shelving behind the desk.

I temporarily installed the interior for these pictures.

Installed on its temporary display base.  Signage still to be added.


Tuesday, August 30, 2016

3D Printing with Wood, Wood Infused PLA

I discussed my experience with Copper Infused PLA filament in a couple of posts earlier this year, 3d-printing-in-copper-model-railroad and 3d-printing-in-copper-2-3-weathering.  In this installment, I am going to show what I have been doing with Wood Infused PLA.  As mentioned in the posts on printing copper PLA is a little stringy, and not as strong as ABS.

Barrels
The printer running, printing four HO wood barrels, two closed, two open.

Here is what they look like sitting on the printer bed.  I have previously blogged about both wood and steel barrels using the premium ABS at this link, barrels-wood-and-steel-ho-s-and-o-scale

They pop off the raft support material.

One of the cool things about the Wood infused PLA is that it is stainable.  I stained the middle ones, the one on the left with shoe polish, and the right one with alcohol and india ink.

Desks and chair
PLA is, in my opinion, at stringy material, and, because of that, it take a little more cleanup that ABS. The desks are not front of the scene material, but certainly, for the few pennies they cost, they will work in most situations.

What I am showing in this, and the previous picture, is the progression in adjustments made to get a better print.  The one on the right was printed laying on its back, with no support, and came out the cleanest.  

Chairs were even more problematic, as this was the only chair that came out reasonable.  Not great, but not bad for the cost.

 I have tried several different designs for chairs, and none are particularly good.

This one was printed in two pieces, as you can see by the post sticking up through the chair seat.

Lumber stacks
Making stacks of lumber is time consuming and takes a lot of strip wood.  With the printer, I can make reasonable representations.  Once the stack is designed, I can have them printing while I am doing something else.

As I recall, these are HO scale 4x12's.  In this extreme close up, you can see the layering and the rounding.

In a more normal view, these 6x6;s look fine.  It will be a good way to fill the lumberyard and make lumber loads.

Plywood stacks
There are times when you can use the layering to your advantage, and I thought I might be able to make some plywood stacks.  I set the layers thicker than I normally do, and I like the way they came out.

 I took my stacks, and glued paper printed with a plywood pattern on top.

The finished loads.

Boxcar floor
Although the car is not done yet, HOn30 by the way, I did print a wood PLA floor.  

The walls, door and underframe were also 3D printed, but in ABS.  The floor required not trimming.  Items this size, really hold the tolerances well, whereas, once you get around .02-.03" it is not so good.

Truck beds

This stake bed for the 1941-45 Chevy from CMW was all 3D printed.  The outer frame in ABS, and then a wood PLA insert.  The tolerances are excellent, as the wood just snapped right in place.  It would have been easy to use wood strips, but

it would have been a real pain to cut and notch all the strip wood for this model!  

With 3D printing, I just drew the wood part on top of the frame I designed, and it fits perfectly.

Here is a view the frame without the wood, and also, a stake bed frame and wood PLA on a White Super Power tractor from CMW.  The wood deck, in this case, has been stained.  

I am working on a post using Stainless Steel and Iron infused PLA.  I just have not found that many items that I wanted to print in these metals.