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Steve P
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Hi,
I just purchased a Creality CR10 V2 from Amazon for $559.
I will be using it for my projects, railroad and otherwise.
I am currently printing: this SF cable car
This thread will document the journey.
Steve

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Steve P
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I just finished printing a wheel assembly.
The diameter is approximately 0.75"
On the finished model I will have to use metal wheels/axles,
to allow adding considerable weight to keep it in the tracks I am going to run it in.
Specifically, I am modeling 3rd & Townsend depot with 1940's Daylight locos in Gauge-1.
The steep hill it will be on screams for cable cars going up and down.
I have no experience outside of G scale.
What scale rolling stock might I consider as a source of working wheel sets?
Steve
Attachment: Screenshot from 2020-04-23 18-58-07.png (Downloaded 131 times)
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Tom Ward
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Steve
I use an Ender 3, also from Creality.
Your CR10 looks much beefier.
It’ll be interesting watching your project come together here.
The cable car looks like a good design and a fun project.
I tried going to your video of the roof being printed but it doesn’t come up.
May just be me.
I can’t tell from your pictures about the print quality.
Are you pleased with what’s coming out?
On my Ender 3,
it took me a while of fiddling with the software to get better prints,
but now I am blown away by what it can do.
I’ll enjoy watching what you do here.
Thanks for posting this.
Tom
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Steve P
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Tom,
So far I am very pleased.
I know I have a LOT of fiddling to do with the software settings to get things perfect,
but that's part of the fun.

The main roof finished overnite, 8.5 hours:
Attachment: Screenshot_2020-04-24 OctoPrint.png (Downloaded 186 times)
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Tom Ward
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Steve - looking good!
What are the dimensions of the roof?
Tom
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Steve P
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Tom,
According to this link ,
the Powell Street cars are 27' long.
The main roof is 10-3/16" long, = 10.1875
It is 3 5/16" wide
10.1875 x 32 = 326"
326" / 12 = 27.167'
So I got it pretty close for Gauge-1
Steve
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Tom Ward
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Steve P wrote:
the Powell Street cars are 27' long.
The main roof is 10-3/16" long, = 10.1875
It is 3 5/16" wide
10.1875 x 32 = 326"
326" / 12 = 27.167'
So I got it pretty close for Gauge-1
Steve
I asked about the size because my experience has been mostly small parts (1:48 scale),
with the largest being about 3” x 3”.
With the roof being that large I'm impressed with the time it took to print.
How big is the work surface? I’m limited to 12” x 12”
Tom
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Steve P
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Tom,
How big is the work surface? I’m limited to 12” x 12”
I'm a little confused.
I thought you had an Ender 3, which is:
8.66 x 8.66 x 9.84 inch (WxDxH)
My CR10 is:
11.81 x 11.81 x 15.75 inch (WxDxH)
Steve
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Tom Ward
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Steve - You’re right.
Sorry about that, I was just shooting from the hip,
had forgotten the details. Thanks.
Tom
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Steve P
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Tom,
Even my CR10 is not large enough to do a typical G scale car,
a SP Daylight passenger car is 26" long.
When I get to that point I will need to design things as pieces,
that are combined to make complete cars.
Steve
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Steve P
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Hi,
A list of software I am currently playing with.
General CAD software:
FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. FreeCAD is a multiplatfom (Windows, Mac and Linux), highly customizable and extensible software. It reads and writes to many open file formats such as STEP, IGES, STL, SVG, DXF, OBJ, IFC, DAE and many others.
Provides a set of tools for editing, cleaning, healing, inspecting, rendering, texturing and converting meshes. It offers features for processing raw data produced by 3D digitization tools/devices and for preparing models for 3D printing.
3D printer specific software:
Ultimaker Cura works by slicing the user’s model file into layers and generating a printer-specific g-code. Once finished, the g-code can be sent to the printer for the manufacture of the physical object.
The open source software, compatible with most desktop 3D printers, can work with files in the most common 3D formats such as STL, OBJ, X3D, 3MF as well as image file formats such as BMP, GIF, JPG, and PNG.
OctoPrint provides a web interface for controlling 3D printers, allowing the user to start a print job by sending G-code to a 3D printer connected via USB. OctoPrint monitors the status of the print job, as well as the printer itself, primarily the temperature of the print head (hot end) and the temperature of the bed, if the bed on the printer is heated. OctoPrint can also show the output of a connected webcam in order to monitor the state of the print, and can visualize the G-code in sync with the print job, or asynchronously.
Steve
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Steve P
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Hi,
Some useful web sites.
Sources of 3D print files:
Sources of information on 3D printing:Steve
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Steve P
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Have been experimenting with ABS and nylon.
Nylon complete failure, think I need heat box for that.
First experiments with ABS also failed,
but got that under control and printed a nice replacement lens cap,
for one that I had lost last year.
Am now experimenting with ASA.
ASA has high outdoor weather-ability; it retains gloss, color, and mechanical properties in outdoor exposure.
It has good chemical and heat resistance, high gloss, good anti-static properties, and is tough and rigid.
It is used in applications requiring weather-ability, e.g. commercial siding, outside parts of vehicles, or outdoor furniture.
The first test, the wheel guard, was PERFECT! 
Steve
Attachment: 2020-04-30-091905.jpg (Downloaded 61 times)
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Steve P
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Si,
Today's experiment was with ASA, mentioned in my last post.
Examine this picture of 2 different prints.
I placed it on my website as it was too large to post here ( >500,000 bytes)
The one on the left is printed with PLA,
the most common filament used, at least by beginners.
The one on the right was printed with ASA,
the "outdoor"plastic.
Notice how much more detail is contained in the ASA print.
Steve
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Steve P
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Built a hot box for the CR10 from scrap I found in the shed.
Steve

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