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Vinyl cutting coach sides


Etched Pixels

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I've been playing with the vinyl cutter and Thompson stock. As the Thompson stock is very similar in ends and profile to the Mark 1 it seemed a perfect thing to use the clear plastic shell from the Farish Mark 1 coaches for. Especially with new better Mark 1 coaches on the way.

 

The coaches were drawn with the gimp and then pasted together using a small program which assembles them and generates three images, one is a colour printed sheet which is like the coach sides it reads but with areas around the sides and in the windows filled in colour so that any slight cutting inaccuracy doesn't show up. The second is a black and white sheet showing which areas are part of the coach (and thus the cutting lines), the third a proof sheet combining strictly for human consumption.

 

The black and white sheet goes into inkscape and the inkscape 'trace bitmap' function turns it into cutting vectors, and hpgl-distiller makes it edible by the vinyl cutter.

 

The print image goes to the laser printer first on paper to check sizes/detail and then again with magic laser printed vinyl paper. This second sheet then goes into the vinyl cutter where the registration marks ensure the image is cut accurately and the end result goes on the side of a brasso cleaned coach.

 

Bogies are plastic ones from the NGS. I could have used the correct etched 8'6" ones but the 8' ones will fool most people and are rather simpler to use. All I need to do now is cut off the underframe then paint and glue on a pair of etched Thompson truss rods, vac cyl, dynamo and battery boxes. After that I'll probably fix the roof ventilators and add rainstrips. Certainly the rainstrips are a very visible difference that needs sorting.

 

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I had a crack at the third, first, and two brake third types to start with - in part because they are very similar so a lot can be cut and pasted. I've not found suitable fonts for the LNER brown livery and teak looks to be very very hard so I'll give that a miss for now.

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  • RMweb Gold

Looks pretty crisp Alan.

 

Am currently having a go at some of Adam's vinyl sides...I wonder in the production methods, if there is a way to lose the 'white edge' on the vinyl? I tried a black felt tip pen without success.

 

I see you also got the brasso on the underframe as I did :icon_mutter: ...I guess its some black paint to the rescue for that one :icon_razz:

 

Pete

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I see you also got the brasso on the underframe as I did :icon_mutter: ...I guess its some black paint to the rescue for that one :icon_razz:

 

You could pop the underframe off the body before attacking it with brasso. They're easy enough to get off by sliding a steel edge between and twisting near the plastic 'rivets'. It also makes it easy to upgrade the underframe/sole bar section with an etched Ultima kit.

 

G.

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I normally do but this coach like quite a few of the newer ones I've had has the underframe and body shell glued together. I will indeed repaint the underframe - but after I've replaced it.

 

It now has an underframe on it which has shown up a problem I'd not considered - the solebars I have are designed to fit inside the edge of an etched fold up shell and the battery boxes are designed to fit likewise so needed sawing down to size. I think I may need to etch some alternatives.

 

Pete: I'm not aware of a method to avoid the white edges. It's one reason I normally use etched sides or paint sides. Adam did post some suggestions to the n gauge group about the white edges. I seem to remember that felt tip pen was mentioned.

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Guest jim s-w

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Hiya EP

 

What sort of files does your Vinyl cutter use?

 

Cheers

 

Jim

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The cutter itself talks a subset of HP-GL and some other vendor HP-GL like language. That seems to be fairly common for such devices although some of the very low end ones have a USB connector and dump bits of the processing onto the PC. Inkscape will convert a lot of formats to HP-GL and the windows softrware supplied (which I don't use) has plugins for some drawing programs as well. In theory anything that will output fairly simple postscript also ought to be convertible into suitable cutting lists.

 

Sadly its not strong enough to cut thick card or all but the thinnest of styrene sheet and laser cutters are a bit too expensive

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Its a CE5000-40. The bigger brother of the Craft Robo and I believe the version I have was also discontinued some time ago which has the Windows users cross as there is no new software for it now. It's really more of a pro vinyl sign cutter so unless you also do signwriting the craft robo upgrade is probably a new craft robo if you've worn the poor thing out. Maybe you'll be the first person to claim craft robos are 'consumables' to the taxman. [1]

 

Alan

[1] In the games industry years ago we had a similar argument with the taxman because Amiga and Atari mice really didn't last more than a few months in a work environment !

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