Scratch build correction!

Well, I have to start with a correction today. Yesterday’s post – Ray’s station – was indeed a kit, and not scratch built.

But that opens a can of worms. Have a look below, is Clark’s building a kit or scratch built?

“Hi Al,

I built a 3D printer to expand what I could do at home, and wound up printing this small building. The first two pics are as it came off the printer. My best friend’s father Philip Koehler is also into N-scale trains; he was visiting and obviously liked it, so I was pleased to give it to him. I got the pic of it in his layout a month later. He did far more justice to it than I would have been able to, it looks great in his layout!

For the curious, the building is printed in ABS plastic (same stuff that Lego bricks are made from), one tiny layer at a time (about 0.2mm in this case). The top of the roof and top of the smokestack looking a bit squirrelly is due to the hot print head spending too much time near that section of plastic and that keeps it from properly hardening in shape. I have since learned that if I print 3 or 4 objects at a time, it looks much better!

The original file for the building is not of my creation, it was posted by Thingiverse user, Stevemedmin.



Printed building1

Printed building2

Printed building3

What do you think? Kit or scratch built? Anyhow, here’s some old school scratch building:

“Hi Alastair

I send you my fuel station for 1:120 gauge. I’m would like to built TT diorama with polish rolling stock era III.

Everyhin’ the best



And while we’re on the subject of scratch building again, I’ll finish with this:

Remember John’s amazing scratch built uboat? Well that’s not the star of the show anymore – now it’s Scuffy the Tugboat. And no wonder, it’s a lot easier to build! You can see it here.

Latest ebay cheat sheet is here. Still going strong.



22 Responses to Scratch build correction!

  1. I think 3D printing is not scratch building. I’d put it in the category of kit bashing. Because, it’s more your design process, and then more of a modified kit. Scratch building, in my opinion is more using pieces, parts, and components of non-related buildings to make a completed structure.

  2. What a nice little house; the development of 3D printing technology has opened a whole vista of opportunity, including creating complex replacement parts for worn-out components on RTR stock etc.

    However, this is neither a kit, nor is it scratch-built. Clark has simply printed something he has downloaded from a design posted for use by someone else, a bit like printing a photo that you like from Flickr for your office wall.



  3. Definitely not a kit and not scratch built as such, designed and certainly unique and looks very good in place on Phillip’s layout.
    The oil depot looks excellent, especially as it must be tiny, can’t tell from the photo, nothing to measure/scale it by. If that is scratch built in TT , eleven out of ten for that. The tugboat and the U-boat are brilliant models of course. Mike S

  4. 3D printing is a logical extension for us modeller-techies! It is kit-bashing, but it is also scratch building too – How about we call is Techie-Builds?

    If you think about it it allows us to clone any thing, and reproduce it – well, as long as it fits in the printer! Here is to the end of obsolete and unobtainable items of rolling stock, broken items, and so on!

    Now all we need is an affordable 3D scanner to link, and we are done!

  5. What is the time it took to make up that building. How much did it cost for material. What is the cost for such a printer. That isn’t scratch building.That be kitbashing for sure.Still cool, Any info would be good.

  6. Greg that fuel station is very cool. Is that a scratch build? if it is very cool indeed. I guess it is Ho scale? if it is scratch built.Is it possible you describe it more in detail.As to what you used for material,how long it took. cost that sort of thing. If anyone was to copy your cool station be easier to figure what pieces they would need to start with. thanks for any info Greg

  7. I think it is kit build. As far as I understand to scratch build something you start with photographs, plans, blue prints, dimensions etc then assemble the materials you are going to use ie wood, metal, plasticard then start making the model. Thats my idea of scratch building for what it is worth.

    Pete “The Mackem” in England

  8. To my mind, scratch building is taking raw materials and building a recognizable object. If I take styrene and build a lake bed racer that looks like the Spirit of America because no kit for that exists in 1/87, that is scratch building. Kit bashing is taking parts from one or more kits to build something different. If I take two P-51 Mustang kits and modify them to become an F82 in 1/87, that is kit bashing. Taking two service stations and melding them together to create a larger station with a two story office is also kitbashing. Modelers have taken existing products and created molds to reproduce them in quantity for years. There is an excellent example of that on the 1/87 scale site. We don’t call it scratch building or kit bashing. The printed building is definitely not kit bashing, it may be scratch building, but I really think we should avoid the argument and call it modeling. It’s a new creative process we can have a lot of fun with, without arguing about it.

  9. Scratch-building, kit-bashing, whatever! Note his opening statement: “I BUILT a 3D printer……” Oh, my goodness, as engineering-challenged as I am, I can fully appreciate his ability to do such a thing. Otherwise, I think his product is neither scratch or kit; it’s in a category all its own, for which I do not have a term…..yet. Meanwhile, I will have to be content with something like “producing”. That is certainly an understatement, and I apologize to you, Clark, for not having the brain power to come up with a more appropriate term. At any rate, you have done a marvelous job of building a mechanism that puts out a product that the rest of us would have to pay a lot for and/or put in endless hours building. Thanks for sharing that!


  10. wow pretty koool way to build structures for modeling…
    and how original can u get?
    keep it running…!!!

  11. I wonder what engine the boat has. And when looking I remembered the boat models from my childhood which had remarkable type of engine -two small tubes soldered to the thin metal diaphragm fixed to the support stand .After filling the tubes with water from the syringe,the boat was put on the water,the burner (a small candle) gave off heat to the membrane and engine started working with a wonderful sound of working engine! the boat started off very quickly. Does anybody know the engine like this?

  12. I like it all.

  13. What is the scale of the print out buildings?


    Joe T.

  14. The engine mentioned above is called a “pop pop” boat engine because of the sound they make. I have one that I bought from a curiousity shop a couple of years ago. They are still made in India.
    They work great.

  15. Hi folks, it is totally irrelavant wether you scratch build or build from a kit or merge the two processes, what IS relevant, is thet you have a go and produce “stuff”
    I started out with very simple plastic kits and now have the motto, “if it suites my purpose I can build it” I dont care how I get to the end result, but enjoy getting there and seeing the finished product.
    The only bit of advice I can give is, if the object of your efforts looks good 3 feet away, its a goer! Ask the “rivet counters” what have you produced? Generally they will get a bit shy at that question.
    Go on, build stuff!

  16. I would consider it scratch built if he was the author of the electronic computer file that was transmitted to the 3-D Printer. Otherwise it would be considered a kit if he takes someone else’s creation that took many hours to draw up and layout. This technique of using someone else’s file is called “Plug and Play”

  17. I could construct a knife and make glue, but it doesn’t mean I scratch built a model. Same thing with the 3D printer. He made the printer, but he didn’t make the blueprint of the building.

  18. Marion picked up on it before I could ask the question :) If I build the printer, does it count as scratch-built? :) But really, the house in question was drawn up by someone else. I do a lot of designing things for myself, I just happened to see a neat building and wanted to see how it’d turn out. I would encourage anyone interested to try using Sketchup to model a building or whatsit in scale. If you don’t know someone with a printer, there are services online that can print your files for you. It’s a blast and so very satisfying when you see something you’ve drawn up come to life. I’m working on some structures of my own and I’ll send an update to Al when I get some printed to show. To everyone who scratchbuilds ‘old school’, I still do that, and many of you are better at it than I am and have my respect. I don’t see 3D printing replacing scratchbuilding in the near future for building unique and fantastic things for our setups; more as complimenting it :)

  19. I think perhaps we are getting a bit neurotic about scratch building and kits – all I know is that 3D printing opens a new world to modellers to create “things” that will look good on our layouts – especially items such as bridge arches that we may need a lot to build a viaduct – many very good modellers have in the past had things made by specialists to incorporate in their models but don’t get this level of criticism

  20. In my opinion, a 3d printout is most definitely not kitbashed. To be kitbashed, there has to have been a kit and that kit has to have been modified.
    It is not exactly scratchbuilt either. Traditional scratchbuilding does not have the kind of preformed parts that define a kit. Depending on the source code for the print, it is not really a kit either.
    The only conclusion then is that anything built using 3d printing technology falls into a category all its own.

  21. Is something scratchbuilt? Probably not if it comes with instructions.

  22. So neat to see 3 d printing develop into something everyone can use! As for the Fitzroy, -brilliant, she looks good in the water and seems like she would be a dry boat!

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