Well it is time for a paradigm shift in philosophy. So far, I have printed "en bloc" as a fully functioning unit. It came out cooler than I ever thought it would, but, the material it is printed in is to hard to work with. Impressive as a printed object, but, in the end that is what it is. After looking at the superb detail available with the FUD material from Shapeways as demonstrated in these pictars ..
I want to print it in FUD...
A big thank you to Bernard Kron for the pictures I can't seem to take. Another big thank you to Bernard for his review and assessments of the prints. I asked Bernard to look at the prints for painting and/or finishing purposes. Basically, because I know nothing about painting model cars having only painted 1:1 in the last thirty years.
The good of the project so far:
1. Wheels rotate, suspension and steering works
2. Print is very strong and takes a 1:1 human foot before considerable damage is done
3. A printed engine storage system that is so very close to working, So close I am calling it a success and I am just tired of printing it.
4. Flexibility of the material was fun to design to.
5. Printed as a fully functioning unit, no assembly other than tires
6. An outstanding desk ornament!
1. Material does not sand, is porous and is very very hard to bring to a surface that can take paint.
2. Suspension joints and steering system are inaccurate so that they could be printed with articulation.
3. WSF minimums made the gaps for articulation huge
4. Really really hard to paint a fully assembled model.
5. Detail is not good when compared to FUD
6. Printer leaves orientation marks
With all that said, I am going to reconfigure the print for detail and for FUD printing. The detail of the stupid little jack is hard to believe when it is sitting in your hand and it too is fully functional! This will mean that I will have to rebuild the suspension, the steering, wheels and hubs. After many conversations with Bernard I realize there is merit to something that is not just an engineering exercise. I am talking about printing the model as a kit or a pile of parts, as many as I can cram into the printing box, tub, seats, cowls and the engine and transmission. I am going to work towards a strength and gap test piece in the next few weeks. The next model will focus on accuracy and sacrifice articulation, ... OK, that was hard to type. Yeah, it has occurred to me that I could print a working engine in FUD, pistons, rods, crank the works in 1:24, ... Must stop thinking this direction. OK, I will get it all out, I could print so the seat brackets are adjustable, the engine rotates (although that would be lost on the completed model), the steering works, the hood and cowl can be removed, the wheels rotate and still maintain accuracy with FUD. Suspension will not happen because you can print FUD to be flexible, but, it stress fractures very easily (springs would break)
Bernard turned me onto scale hardware and I am thinking that I will try the first print to accept bolts in the flanges so that the wheels will be bolted on. I may not have the flange depth for this, we will see.
I need to find a Cobalt SS engine locally to laser scan for modeling. If it is at a junk yard, I want to scan a couple of other engines for modeling too, if they will let me. I would love a VW V10 diesel, but, they are kind of rare, might have to settle for a Cummins as I like those too.
I am actually excited about making a "kit" for the Atom in FUD. It will not be cheap, I am thinking that by the time I have all of the panels, seats and other parts done it will be right around four times the cost of the current print. I was also thinking of printing a "pole" of bearing material that would be driven into the bearing areas for an even tighter gap control on the suspension joints. Bernard has the jack that was printed and has a legitimate concern about will painting the jack fill the bearing areas and stop articulation.