1/72 - Saunders-Roe SR.45 Princess by One Man Model (3D printed models) - released

[Ed Russell]

There were a couple of them at Model Expo.

By Tamigawa injection moulded kit standards they are pretty rough however nothing that a bucket of bog and a belt sander couldn't fix!

Seriously, if you are up for a vacform, you will be able to build this. For a kit this size, it is state of the art for 3D printing, as has been discussed, and, given the size and complexity, the price is reasonable.

 

@ICMFcomments on HP.42 are relevant here

He's running FDM (filament) printers. which are the most economical 3D print technology to run, but have (for the modeller) a fairly poor surface finish, as noted.  You can improve this with lower layer heights - make each vertical slice thinner - but doing so will dramatically lengthen the print times; if your slices are half as thick, it takes twice as long to print the model.  He's probably doing 0.2 mm layers, about the thickness of a business card.  It would look much smoother at .05 mm layers (half the thickness of a sheet of paper), but that would take 4x as long to print, and he'd have to raise his prices accordingly.  The prints still wouldn't be perfect - I've said before that FDM just isn't a great technology for modellers' needs, as it's a glorified hot glue gun (and I own one) - but they'd be much better, and much closer to usable.

However.

For the kinds of things he's doing, there aren't a whole lot of alternatives.  He's doing large subjects, and large prints.  That requires a large build envelope.  And there's nothing anywhere near as economical as an FDM printer for $ per cm3.  ................

So yes, there are technologies that could produce better parts.  And he could even use the same technology to produce better parts.  ..................

[One Man Model]

Here's available eBay links. 

prototype ver.

https://www.ebay.com/itm/113802659986

airliner ver.

https://www.ebay.com/itm/113832925979

My mass production printing resolusion is 0.1, 0.14 and 0.15mm. Normally 0.15 or 0.14mm to minize printing time. Further thinner resolusion is possible but it will be much more expensive. I use both new and old printers. 

Parts fabricated by only new printers with thinner resolusion surface will be better. The Zortrax M300 can fabricate by 0.09mm and the Atom2.5EX by 0.05mm. Half resolusion mean 2 times printing time. I want to release kit series by affordable price.

[One Man Model]

I have released 1/48 kit as well. 

It is basically 1.5 times enlarged model of 1/72 parts. 

Partially, I added separation because of fabricator capacity.

 

 

1/48 airliner ver.

https://www.ebay.com/itm/113865261766

1/72 airliner ver.

https://www.ebay.com/itm/113860574813

1/72 prototype ver.

https://www.ebay.com/itm/113802659986

[One Man Model]

Saunders Roe Princess prototype version is cheaper than planned airliner version.

1st floor is empty so kit amount is shorter.