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3D-Printing Gauge-1 Model Railroad Objects
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 Posted: Sat Apr 25th, 2020 01:39 pm
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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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 Posted: Sat Apr 25th, 2020 04:56 pm
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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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 Posted: Sat Apr 25th, 2020 05:35 pm
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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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 Posted: Mon Apr 27th, 2020 05:40 pm
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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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 Posted: Mon Apr 27th, 2020 05:50 pm
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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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 Posted: Thu Apr 30th, 2020 04:21 pm
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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!  :2t:

Steve


Attachment: 2020-04-30-091905.jpg (Downloaded 55 times)



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 Posted: Fri May 1st, 2020 03:41 am
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Si.
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Hi Steve  :wave:


Looks like you are getting some nice parts from your 3D-printer !  :thumb:





Trolley roofs are a tricky business to get right.  L:  :f:
Looks like you got a good one spat outta the machine there !  :old dude:



:java: :moose: :dt:



Si.




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 Posted: Fri May 1st, 2020 04:53 am
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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.  :thumb:  

Steve




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 Posted: Fri May 1st, 2020 06:45 am
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Si.
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" I placed it on my website as it was too large to post here (>500,000 bytes) "


Hi Steve  :wave:



By far the best way to illustrate 'detail', is with a crop or a close-up, perhaps an overall as well ...

... any of which can easily be under a 0.5MB file-size & display OK on most folks screens.  :shocked:


I do photos like that with my cellphone & even sometimes crop them a bit in 'Pixlr Express' ...

... should be easy to show what you want, within a sensible sized 800x600 photo.  :)



:java: :moose: :dt:



Si.




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' Mysterious Moose Mountain ' - 1:35n2 - pt.II
http://www.freerails.com/view_topic.php?id=7318&forum_id=17&page=1

' M:R:W Motor Speedway !!! ' - 1:32 Slotcar Racing Layout
http://www.slotforum.com/forums/index.php?showtopic=59295&st=0&a
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 Posted: Sat May 2nd, 2020 03:32 pm
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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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