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"HONGZ" stands for HO scale, N scale, G scale, and Z scale.

Post your non-O scale stuff here!

I have not posted any update on my Spokane Southern efforts since the summer, but I've been actively using a 3D printer for modeling projects.

I purchased a Prusa Mini printer in June 2020, and have been learning the printing process, as well as CAD to be effective with this new tool.  I'm having a blast with this, and it definitely has become another effective tool in allowing me to achieve my modeling objectives.

For my first project, I designed and printed a selectively compressed Kankakee River bridge for my friend Brian's 1976 era Illinois Central Gulf.  He has completed the assembly and finishing, and is now working on the scenery to complete the scene.

Here is the majority of the components I designed and printed for him (three sets of inner spines sent earlier for test fit).

IMG_4387

Brian's skilled assembly and finishing work created this:

Assembled Bridge Cropped and retouched

Side view Bridge resized

I did several other small projects for myself and friends before my latest project.  This project required a good foundation of Fusion 360 in order to create the 3D model, and has been a great learning exercise in itself.  The model below is a "prototype", which allowed me to develop the manufacturing process of several components, and determine what assembly process I want to use on the six "production" models (two for me, and one each for four close modeling friends).  Obviously needs painting, decaling, weathering and couplers, but this allows you to see what went into this car.  The White colored pieces were 3D printed.  All of the grey parts are Tichy Train Group parts either from the Tichy 4020 kit or separate parts.  The brown turnbuckles are also Tichy parts.  So, in essence, this was a 3D printed "kitbash".

IMG_4787

IMG_4788

IMG_4789

IMG_4790

IMG_4792

IMG_4786

Regards,

Jerry

Attachments

Images (9)
  • Assembled Bridge Cropped and retouched
  • Side view Bridge resized
  • IMG_4387
  • IMG_4786
  • IMG_4787
  • IMG_4788
  • IMG_4789
  • IMG_4790
  • IMG_4792
Original Post

Replies sorted oldest to newest

Hi Art:

I'm printing with a FFF (Fused Filament Fabrication) type printer, specifically a Prusa Mini:

https://shop.prusa3d.com/en/3d...ntent=prusa-i3-mk3s#

For this printer, add shipping from the Czech Republic.  All in, I spent appx. $620.00 for the printer, shipped, plus a small nozzle, Filament sensor, and extra filament.  I felt it was money well spent.

If you want details of my printing journey, I blog about the experience, and what is required, at:

https://model-railroad-hobbyist.com/blog/10975.

The second thread documents why I chose this printer, and why I have not to date jumped into a MSLP or DLP printer, which is resin printing technology.  These printing processes give higher resolution than what I am doing, but the printer is meeting my needs at this point, and was an excellent jumping off point for the 3D printing learning process.  I simply did not want to deal with the resin handling at this time, but I may jump into that this year.

In all fairness, I hear a lot of good things about the Creality Ender 3 printers (I think they just released an upgrade), which goes for around $300.00, and is also an FFF printer.  More assembly required than what I did with my printer, but after going thru my assembly process, and learning what makes these printers tick, I wouldn't shy away from more assembly.  However, I am a VERY big fan of Prusa.  Their support, documentation, and spare parts available are in my opinion first rate for what is probably a mid-range printer.  I don't think I'd call a Prusa as "professional"; this printer really was targeted as an entry level printer.

Regards,

Jerry

The quality of that print is really impressive! I'm working on a few structures myself but progress has been slow as I figure out my clearances.

The Prusa Mini is an excellent starter machine. I have a Creality CR10S Pro and it was a good starter machine but definitely took some fine tuning to get anything good. It still could use improvement but I'm not worried about it until I get to final prints.

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