Author Topic: Weekend Update 10/6/24  (Read 13868 times)

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shark_jj

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Re: Weekend Update 10/6/24
« Reply #1 on: October 04, 2024, 09:28:59 PM »
+30
Over the last month or so I have posted pictures of my grandson Nathan helping out with the scenery in the Clarion River Junction area.  We are on the HOMES Club Layout Tour tomorrow here in the Golden Horseshoe area of Southern Ontario and Nathan badly wanted to have the water installed in the river inlet.  He came up Wednesday night and I had him watch the Woodland Scenics Deep Pour Water video and then he undertook to do the mixing and pouring. 

In the photo we see two brand new 6300 class SD45's leading freight #262 over the Clarion River bridge.  The water that Nathan poured came out great.  Once the tour is over we will be applying the Ripple Effects. 

I will try to post some tour pictures tomorrow night. 





John

mu26aeh

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Re: Weekend Update 10/6/24
« Reply #2 on: October 04, 2024, 09:44:46 PM »
+18
Some time off after the layout tours, got back in the basement this week and started on more paint shop projects.  First up is Reading & Lehigh #2760.  This unit started life as Chesapeake and Ohio #2760.  It was bought by the R&L as the C&O was casting off their steam locomotive fleet for the new fangled diesel locomotives that were the talk of the town.  It had been to another shop prior to entering Hanover where graphics were not applied correctly (peeling decals due to no clear coat pre or post application), so I had to strip the tender down, then primer and repaint.  Applied new graphics earlier this evening.




nkalanaga

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Re: Weekend Update 10/6/24
« Reply #3 on: October 05, 2024, 02:58:11 AM »
+2
I believe that picture was on a branch above Wallace, Idaho.  If so, yes, it was in a very narrow canyon.  If I'm right, that's Burke, Idaho, and here's a little bit of history:

https://www.atlasobscura.com/places/burke-ghost-town

I liked the closing comment that one shouldn't go after dark, because of "paranormal activity".  I'd be more worried about predators, of all species.
N Kalanaga
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Sumner

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Re: Weekend Update 10/6/24
« Reply #4 on: October 05, 2024, 08:45:59 AM »
+20
Finished a saw sharpening station for my sawmill this week and got the print files posted on thingiverse ( HERE ).

More pictures and info on The Railwire  ( HERE )  ..... and ....

you can find the whole build on my site  ( HERE ).             

This is the smallest design I've done so far and the print is tricky to support and hard to remove the supports without breaking anything. Also hard to get the last small pieces of the resin supports off the print. Again I used an AnyCubic Photon M3 ($200) printer and Siraya Tech 'Build' Sonic Gray resin. The resin gives good detail, is strong and the blade has flex to it.



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Sumner

Working in N Scale ---Modeling UP from late 40's to early 70's very loosely......

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chuck geiger

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Re: Weekend Update 10/6/24
« Reply #5 on: October 05, 2024, 03:46:51 PM »
+30
Finally getting the work on layout mojo going again and some small projects to start. Like Ed told me, you don't need a list, just go with what hits you when you walk into the room.













« Last Edit: October 05, 2024, 03:48:49 PM by chuck geiger »
Chuck Geiger
provencountrypd@gmail.com



peteski

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Re: Weekend Update 10/6/24
« Reply #6 on: October 05, 2024, 07:23:54 PM »
+4
Finished a saw sharpening station for my sawmill this week and got the print files posted on thingiverse ( HERE ).

Sumner, you design some wonderful sawmill equipment, but I'm wondering why can't you design and print it in multiple pieces so the supports would be easier to remove, and the items would be easier to paint.  This to me seems sort of like those 3D designers who design a complete automobile as a single printout. It makes it pretty impossible to print the interiors. Seems that it would be easier to separate the parts in the CAD drawing then after they are printed.
. . . 42 . . .

OldEastRR

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Re: Weekend Update 10/6/24
« Reply #7 on: October 05, 2024, 08:11:21 PM »
+1
I believe that picture was on a branch above Wallace, Idaho.  If so, yes, it was in a very narrow canyon.  If I'm right, that's Burke, Idaho, and here's a little bit of history:

https://www.atlasobscura.com/places/burke-ghost-town

I liked the closing comment that one shouldn't go after dark, because of "paranormal activity".  I'd be more worried about predators, of all species.

Reminds me of the song "The Railroad Runs Through the Middle of the House".

shark_jj

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Re: Weekend Update 10/6/24
« Reply #8 on: October 05, 2024, 09:43:29 PM »
+18
The layout tour went great today.  Had 40 people come and look at the layout.  Heard a lot of positive comments about what could be accomplished in N Scale.  A few weeks back John posted a Youtube video from N Scale Dystopia.  The modeler's name is Denny and he stopped by and we had an interesting discussion about his experiences.  I'm looking forward to seeing how his new layout progresses.  I promised some photos, however, I won't be for two reasons.  First, the morning was hectic and between running trains and talking to people I plain forgot to take any pictures.  In the afternoon I was going to grab a couple of photos but on second thought, I decided posting photos of people I don't really know on the Internet, even if with good intentions, wasn't one of my best ideas.  Instead, here are two of the coal trains we ran in the course of the day.  All told we ran 6 different trains over the course of the day.  Scale speed, around the layout, 8 hours, zero derailments.  Quality time with my grandson.  Good conversations.  Great day.

 

Chuck, love the weathering on those freight cars, and you have captured southwest scenery so well, I almost had to get a drink to get the sand grit out of my mouth. 
John

nkalanaga

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Re: Weekend Update 10/6/24
« Reply #9 on: October 05, 2024, 11:24:36 PM »
+1
OldEastRR:  Here's a link to one of the versions:

https://www.youtube.com/watch?v=YgvQiBjVS-s
N Kalanaga
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robert3985

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Re: Weekend Update 10/6/24
« Reply #10 on: October 06, 2024, 05:18:09 AM »
+3
Sumner, you design some wonderful sawmill equipment, but I'm wondering why can't you design and print it in multiple pieces so the supports would be easier to remove, and the items would be easier to paint.  This to me seems sort of like those 3D designers who design a complete automobile as a single printout. It makes it pretty impossible to print the interiors. Seems that it would be easier to separate the parts in the CAD drawing then after they are printed.

It's a good question.  3D printing certainly will allow models to be produced with all sorts of inaccessible details that injection molding, or resin casting, or investment casting will NOT allow due to the constraints of the respective technologies.

Since a big part of model building is finishing and painting the model, design of models is much more than simply reproducing a scaled-down version of something, especially when finishing the model (painting & decaling) might be literally impossible if some details are visible, but inaccessible.

Which is why, in designing several models that I'll be introducing in the next few months, that even though I can print them in fewer pieces with just as accurate scale fidelity, painting them would be cumbersome (at best) and nearly impossible (at worst)...so, they are getting designed to be easy to paint, easy to assemble, and still retain their scale fidelity, but by printing them with more parts, with assembly required. 

Yup, it takes more work, but I think customer satisfaction, rather than customer frustration at the difficulty level needed to finish a finely detailed model that's virtually already assembled, will more than compensate for having to snap, or glue together several separate, but easily painted parts.

Just sayin'...

Cheerio!
Bob Gilmore

John

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Re: Weekend Update 10/6/24
« Reply #11 on: October 06, 2024, 05:43:13 AM »
+4
I think for this particular model, a one piece print is probably appropriate. I can’t see any easy way to have that fine detail saw as a separate part and then included into the machine later on. When you compare the model against the coin, you can clearly see that this is a very small piece and even with ABS like resin it’s probably, not the strongest piece in the model. Depending on the print orientation that Sumner used you may not need all that many supports for this and most of them will be light anyway just my five cents worth.

shark_jj

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Re: Weekend Update 10/6/24
« Reply #12 on: October 06, 2024, 08:55:51 AM »
0
My thanks to those of you who messaged me about the lack of support under that bridge.  It is based on a bridge outside Scranton and has a boxlike structure which goes underneath it.  Several years ago with an Open House deadline approaching had time to install the bridge but not the superstructure.  Since then the superstructure just keeps getting bumped down the road.  Having posted this picture and now realizing this is one of the first things people see entering the layout room, I realize I have to quit procrastinating and instead of bumping the bridge structure down the list, bump it up.  Thanks for the nudge.
John

Sumner

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Re: Weekend Update 10/6/24
« Reply #13 on: October 06, 2024, 10:28:05 AM »
+13
.........I'm wondering why can't you design and print it in multiple pieces so the supports would be easier to remove, and the items would be easier to paint.......... Seems that it would be easier to separate the parts in the CAD drawing....

First off hope you and anyone else interested in this takes a couple minutes and reads this article about supports....

https://ameralabs.com/blog/6-tips-3d-printing-supports/

They are just part of the equation if you are doing the design of what you want to print or are printing someone else's design.  When one designs something to be manufactured with metal they have to consider what the capabilities of the final machining process is capable of.  3D printing opens up more possibilities of what is possible but still has limitations.  During the design stage you have to consider what the printer is capable of.  I've built (machined/welded) a lot of items with 1/8" steel or thinner that you can easily see in the final object.  Can I show something in N scale that is 1/8" (.001""/.025mm).  Not really, my printer can't print it and if it did I couldn't see it.  So one is left with trying to represent something the best they can with the limitations that they are faced with.

Robert is designing items to sell so has other considerations that I don't have.  I'm designing items for my layout and then for most of them spending some considerable amount of time documenting them and posting the files for others to use if they so desire at no cost to them.  If I was designing them to sell I'd spend a lot more time refining them and working on how best to print them for best looks and assembly if that is the final goal, but I'm not.



In the case of the sharpening station above I got the first two prints to print and I'm satisfied with the paint job so I'm done with it and onto the next project.  In the design I did the opposite of what you are suggesting and what I often do.  I designed a lot of the print in separate parts, the saw, side stands and parts of the main center section.  Then I combined them for the final print file.

Why?  One is that this is so small that I could hold onto the center and paint the stands and blade with a very fine brush.  It was easier to paint those items already attached than to of tried to hold them in some way and paint them separately (they are small).  Then I would have had to locate them on the other parts and glue them.  Again at 80 years old and having to use a visor not fun.

Another reason I went this route is that it cut down on the supports needed.  If I would of printed the blade separately I would of needed more supports.  The way it is the side stands act as some of the supports needed and it was easier to remove the supports from the bottom of them and clean them up with a file than the ones on the blade.  In this case the smallest supports I can use were used and they are as thick as the blade so difficult to remove without breaking the blade. 

If one can have most of the supports under the main piece on the side that won't show that is going to be the best road to usually go down.  Then the model itself becomes the support for other smaller detail that is part of it.  The supported side is never going to look as good as the unsupported areas even after you file/sand and clean it up.

In the case of the side stands if they were to be printed separately they would need the slot for the saw blade.  It would need to be oversized a bit to get the blade into the slot.  To make the sides of the slot strong enough they would have been thicker and more out of scale giving the stands a bulkier look than they already have.

Lots to consider and if you look, a number of my designs/prints that are available to print, at no cost  ;), are in pieces that can be cleaned, painted and assembled.

Sumner

« Last Edit: October 06, 2024, 07:23:26 PM by Sumner »
Working in N Scale ---Modeling UP from late 40's to early 70's very loosely......

Under$8.00 Servo turnout Control --- 3D Printed Model RR Objects -- My Home Page

http://1fatgmc.com/RailRoad/RR Main/Link Page Menu.html

Chris333

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Re: Weekend Update 10/6/24
« Reply #14 on: October 06, 2024, 11:14:37 AM »
+1
I didn't know how at first so a lot of my earlier designs don't have supports on them. But once I figured out how to also upload the supported model, I would upload both. I know it can take some time to design a model, but it also takes some time to support it.

So with these files:
https://www.printables.com/model/859963-hon30-gilpin-ore-cars
There are supported and unsupported models. The supported models can be sliced and put right into a printed in about 3 minutes.  The unsupported files cannot be sliced until until an hour or two of supports are added. After adding the supports in Chitubox you can save it as an .stl file. I should also add that "auto supports" do not ever work and I have never used them.

Same here:
https://www.printables.com/model/913753-new-lime-rock-dump-car-hon30/files

I suggest if possible to also upload your supported files.
« Last Edit: October 06, 2024, 11:16:51 AM by Chris333 »