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Pad Printing / Bulk Car Lettering

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Posted by orsonroy on Tuesday, June 16, 2009 2:37 PM

Not to be bellicose, but I'm not sure where you're getting that $1 buck a sheet price...? My experience is that decals run $2-5 bucks a set..?  For each car I have to do two long sides and two short sides (sides and ends). That's reporting marks, car number, railroad name, logo, build date, and all the rest.

Hi John,

Assuming you're either doing Pennsy cars or freelanced cars in a Pennsy-esque style, Rail Graphics will do them in the quantities you'll need for around $0.62 per car:

 http://www.railgraphicsdecals.com/Webinfo.pdf

That's $148 for the first 100 sets of decals (200 cars worth) and $220 for 200 reruns (another 400 cars). Lay out the artwork so an entire sheet will do one full car as a solid decal (no cutting or finicky fitting needed) and you're up to $1.17 per car (for 600 sets). You'll have to provide the scanner-ready artwork, but that's easy enough to do using various programs.

Speaking as a manufacturing engineer, I hate to say it, but you're overcomplicating home decorating cars. Hand painting and lettering 550 basic freight cars of no more than five different body styles (I'm assuming) is child's play as compared with modeler who have successfully built, painted & decorated the same number of different resin freight car models, for a FAR higher overall price (I know at least four of them!). Rattlecan paint & whole sheet decals will be your cheapest option for (I'm assuming) simple freight car kits and paint schemes of one body color and only white lettering.

Now if you WANT to built a home pad printer "just because", then have fun! Be sure to show off your work to the hobby once you get rolling too, since there's lots of techies in this hobby that will think the process will be cooler'n snot. I've got a very good friend who owns his own software company in Silicon Valley who's currently welding all-steel brackets for his multilevel mushroom layout. Is it cheap, fast, or efficient? Not really, but it's something he WANTS to do. So long as he knows that what he's doing may not be the simplest, most cost-effective or fastest way to do things who can call him crazy?

Ray Breyer

Modeling the NKP's Peoria Division, circa 1943

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Posted by Flashwave on Tuesday, June 16, 2009 2:06 PM

jwhitten

Flashwave

jwhitten

Also it looks like manual Pad Printers can be had off of ebay for about $250-350 bucks. Plus the cost of supplies I'm sure. Assuming decals are in the $2-3 bucks each range, then the cost to do 100-150 cars would be about the same. After that it would get cheaper.

Let's try that one again. A decal page is about a dollar a page, likely a tad less for an 8.5 by 11, dpeending on the hobby shop and the sale. I don;t know the ballpark for ink, but it can;t be up to 2 bucks. Also, lay out as much of the decal as you can into one piece, so your not decaling 6 times for six rows, but once, so long as it;s not white font. In hO scale, I've got almost 60 decals soley for car numbers on an 8.5/5.5 sheet. Assuming then that you add in a logo, you still end up at 60 to 70 decals a page at 8.5/11, or 1-2 bucks for 70 cars. At worst, you spend ten bucks for somewhaere around 200 cars.

And not to rain on an idea, I applaud trying to break a mold, but the only reason I can see pad printing as being more effective is whites. You can't print whites. But for a cost difference of about 25 fold, I'd go find another solution.

EDIT:I neclected setting solutions. To do the dec als, you;d need maybe 8 bucks in Microsol and and 4 in Glosscote ( you can get in a spraycan if you don;t want to hassle with an airbrush, and you'd likely want the Gloss with the pads anyway. And that's total, not per page. Morwe might bbe needed depending on how much is used, but we still aren't over $30 to make your own decals.

 

It is a white font. For all the cars.

Not to be bellicose, but I'm not sure where you're getting that $1 buck a sheet price...? My experience is that decals run $2-5 bucks a set..?  For each car I have to do two long sides and two short sides (sides and ends). That's reporting marks, car number, railroad name, logo, build date, and all the rest.

*Snip for length*

 

John


I'm talking about making them. I'm thinking that a pack of Decal paper is about 8-10 bucks for a pack of 6-8, but with sales like Hobby-Lobby's reguular 40% off, you can stock up for pretty cheap, the sale brings it back down to ~$1, and for twice the paper space as the Microscales. But standard home printers don't do whte font. matter of fact, non standard home printers don't do whites either. The software assumes white is nothing, since paper is white. As such, there's no white ink. The only option was an ALPS printer, that has now been discontinued.

As for the decals, are you finding sets of Hopper car data, then the lettering for the road (I;m assuming Pennsy here) or a shaeet with the whole mess on it?

-Morgan

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Posted by jwhitten on Tuesday, June 16, 2009 12:05 PM

WaxonWaxov

SIlk screening? directly onto the cars?

I would have never thought of that.

 

 

 

That actually might be a reasonable partial solution in this case. I could probably silk screen the sides as easily as I could pad print them. Its the ends that are going to be the real problem.

Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's
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Posted by WaxonWaxov on Tuesday, June 16, 2009 7:31 AM

SIlk screening? directly onto the cars?

I would have never thought of that.

 

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Posted by jwhitten on Tuesday, June 16, 2009 4:59 AM

Flashwave

jwhitten

Also it looks like manual Pad Printers can be had off of ebay for about $250-350 bucks. Plus the cost of supplies I'm sure. Assuming decals are in the $2-3 bucks each range, then the cost to do 100-150 cars would be about the same. After that it would get cheaper.

Let's try that one again. A decal page is about a dollar a page, likely a tad less for an 8.5 by 11, dpeending on the hobby shop and the sale. I don;t know the ballpark for ink, but it can;t be up to 2 bucks. Also, lay out as much of the decal as you can into one piece, so your not decaling 6 times for six rows, but once, so long as it;s not white font. In hO scale, I've got almost 60 decals soley for car numbers on an 8.5/5.5 sheet. Assuming then that you add in a logo, you still end up at 60 to 70 decals a page at 8.5/11, or 1-2 bucks for 70 cars. At worst, you spend ten bucks for somewhaere around 200 cars.

And not to rain on an idea, I applaud trying to break a mold, but the only reason I can see pad printing as being more effective is whites. You can't print whites. But for a cost difference of about 25 fold, I'd go find another solution.

EDIT:I neclected setting solutions. To do the dec als, you;d need maybe 8 bucks in Microsol and and 4 in Glosscote ( you can get in a spraycan if you don;t want to hassle with an airbrush, and you'd likely want the Gloss with the pads anyway. And that's total, not per page. Morwe might bbe needed depending on how much is used, but we still aren't over $30 to make your own decals.

 

It is a white font. For all the cars.

Not to be bellicose, but I'm not sure where you're getting that $1 buck a sheet price...? My experience is that decals run $2-5 bucks a set..?  For each car I have to do two long sides and two short sides (sides and ends). That's reporting marks, car number, railroad name, logo, build date, and all the rest.

I have around 300-400 hopper cars to do so far, and probably another 100-150 boxcars. And after that a number of locomotives-- those will mostly be one-offs. My first run is for a batch of hoppers I recently purchased that are all undecorated. They'll be the easiest. There are 150 in that batch.

My past experience with decals has not been that great. Admittedly that was when I was a kid and perhaps I could do a better job now.

I have a long-time (20+) years experience with computers, electronics and automation. The idea of sitting down and building a pad-printing machine is not that far-fetched for me. But on the other hand, I would prefer to go with the best and cheapest overall solution. If I had a pad printer, I think I might find it useful in other ways beyond just doing these cars. But if the cost for decals is as cheap as you say then your logic is good, and that sounds like a reasonable way to go.

I work well with computers and electronics-- and through them (automation) I can do other things. My natural inclination has always been to design myself out of problems. Model Railroading is a renewed interest for me after a nearly 25 year hiatus. In many ways it just fits right in with my other interests. But it also represents new challenges for me-- particularly model-building, artistic, scenic, etc-- a whole new area of art and "engineering" (if you like) to explore. I'm still learning-- and I have a lot yet to learn about the traditional techniques of the hobby.

And I really appreciate it when people like yourself take the time to not only discuss this technique or that, but also the logic and thinking behind them. To paraphrase the old maxim, I have a bag of hammers so I tend to see the world as a bunch of nails-- I'm "book smart" in Model Railroading-- I've read darned-near everything I can find to print or buy, along with nearly the entire archive of Model Railroader, RMC, and several other periodicals. But I am "experience poor" in Model Railroading. I have a lot of catching up to do-- enjoyably I think.

 

John


Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's
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Posted by jwhitten on Tuesday, June 16, 2009 3:45 AM

Flashwave

jwhitten

 

Also it looks like manual Pad Printers can be had off of ebay for about $250-350 bucks. Plus the cost of supplies I'm sure. Assuming decals are in the $2-3 bucks each range, then the cost to do 100-150 cars would be about the same. After that it would get cheaper.

Does anybody know how you go about making the cliche (printing plate)  ??

Let's try that one again. A decal page is about a dollar a page, likely a tad less for an 8.5 by 11, dpeending on the hobby shop and the sale.

 

 

Where are you getting decals that cheap? Every time I look they're in the $2-5 bucks a set range?

Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's
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Posted by Flashwave on Tuesday, June 16, 2009 12:11 AM

jwhitten

 

Also it looks like manual Pad Printers can be had off of ebay for about $250-350 bucks. Plus the cost of supplies I'm sure. Assuming decals are in the $2-3 bucks each range, then the cost to do 100-150 cars would be about the same. After that it would get cheaper.

Does anybody know how you go about making the cliche (printing plate)  ??

Let's try that one again. A decal page is about a dollar a page, likely a tad less for an 8.5 by 11, dpeending on the hobby shop and the sale. I don;t know the ballpark for ink, but it can;t be up to 2 bucks. Also, lay out as much of the decal as you can into one piece, so your not decaling 6 times for six rows, but once, so long as it;s not white font. In hO scale, I've got almost 60 decals soley for car numbers on an 8.5/5.5 sheet. Assuming then that you add in a logo, you still end up at 60 to 70 decals a page at 8.5/11, or 1-2 bucks for 70 cars. At worst, you spend ten bucks for somewhaere around 200 cars.

And not to rain on an idea, I applaud trying to break a mold, but the only reason I can see pad printing as being more effective is whites. You can't print whites. But for a cost difference of about 25 fold, I'd go find another solution.

EDIT:I neclected setting solutions. To do the dec als, you;d need maybe 8 bucks in Microsol and and 4 in Glosscote ( you can get in a spraycan if you don;t want to hassle with an airbrush, and you'd likely want the Gloss with the pads anyway. And that's total, not per page. Morwe might bbe needed depending on how much is used, but we still aren't over $30 to make your own decals.

-Morgan

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Posted by jwhitten on Monday, June 15, 2009 5:46 PM

 Here's another pad printing video to spark the imagination. This looks like it could be accomplished with a simple XYZ table, some industrial steppers / controller with maybe "G-code" protocol. The interesting thing about this video is the cliche (plate) and ink & ink cups are handled separately. This looks like it could be buildable in the $500-1000 dollar range.  Which admittedly is on the high side for a hobby project, but on the other hand, you could probably use the addressable XYZ setup for other stuff too.

Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's
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Posted by jwhitten on Monday, June 15, 2009 5:19 PM

 

Also it looks like manual Pad Printers can be had off of ebay for about $250-350 bucks. Plus the cost of supplies I'm sure. Assuming decals are in the $2-3 bucks each range, then the cost to do 100-150 cars would be about the same. After that it would get cheaper.

Does anybody know how you go about making the cliche (printing plate)  ??

Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's
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Posted by jwhitten on Monday, June 15, 2009 5:13 PM

wjstix

I'd be happy to be proved wrong, but unless you intend to do pad printing commercially for others, I think you'll find the expense is way too high for the equipment to just to do it for a few cars of your own at home. If you shop around you can get custom made decals that per set don't cost much more than over-the-counter commercial decals, or software to do your own decals. I suspect it's kinda like the difference between burning your own CD's on a computer, and pressing your own LP's. One is feasible as a home project, the other isn't.

 

You mean like this vinyl recording machine made out of legos?  (Which admittedly isn't duplication)

http://www.youtube.com/watch?v=ElTOLanqTBE

But this is duplication- not suitable for large volume production, but demonstrates that things can be done at home:

http://iphone.qj.net/How-to-Pirate-a-Vinyl-Record/pg/49/aid/39381

 

 

Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's
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Posted by wjstix on Monday, June 15, 2009 4:52 PM

I'd be happy to be proved wrong, but unless you intend to do pad printing commercially for others, I think you'll find the expense is way too high for the equipment to just to do it for a few cars of your own at home. If you shop around you can get custom made decals that per set don't cost much more than over-the-counter commercial decals, or software to do your own decals.

I suspect it's kinda like the difference between burning your own CD's on a computer, and pressing your own LP's. One is feasible as a home project, the other isn't.

PAD PRINTER

Stix
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Posted by Railphotog on Monday, June 15, 2009 4:38 PM

Seems like a whole lot of energy/time/costs/trials/rejects/etc. to me.   Have some custom decals made and do the cars in batches, lay them all out on a table, do one, move on to the next one, etc.   Several (or many) such work sessions would produce cars with proper lettering and very little waste or experimenting.   Farm the decaling out to a local club.  Minimal investment in time and money, no messing around indefinitely trying to get pad printing to work properly, no special inks or  processes, no cars with problems.

 

Bob Boudreau

CANADA

Visit my model railroad photography website: http://sites.google.com/site/railphotog/

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Posted by jwhitten on Monday, June 15, 2009 4:09 PM

maxman

Did you consider having the cars pad-printed for you?

That's one of the things I contacted the pad printing about, to find out how much they would charge.

 

maxman

Note that even the professional companies will have mis-hits until they get the registration straight, and that's with their fancy equipment, so I don't think you'll find the process easy to accomplish with home built equipment.

 

I understand what you're saying but I don't think there's any reason that a home-made rig has to be any less capable than a pro rig-- it just wouldn't be suitable for professional-level jobs. Its certainly possible to build accurate home-brew equipment even though it may take require more setup to use, take more time to operate, be more difficult to operate, not be as efficient or automated-- or even as you suggest, as accurate. But as long as its good enough and produces reasonable output, that is the essential goal, and one that I think is probably achievable. My goal isn't to put the professionals out of business, rather to just make something that would work "good enough" to use at home. Two different levels of engineering.

As an example, I can't imagine that anybody could produce a template as accurate as a commercially-produces Fast Tracks jig... and yet somehow, people manage to build reliable and accurate home-made turnouts all the same.

 

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Posted by maxman on Monday, June 15, 2009 3:11 PM

Did you consider having the cars pad-printed for you?  Companies such as Bowser do this for special runs such as model railroad club cars.  You will still have to decal on the car numbers, but you can minimize this by having the first couple numbers pad-printed, and the remaining digits decaled on.  Business being what it is these days, maybe they'll be willing to give you a good price to get the work.

Note that even the professional companies will have mis-hits until they get the registration straight, and that's with their fancy equipment, so I don't think you'll find the process easy to accomplish with home built equipment.

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Posted by jwhitten on Monday, June 15, 2009 2:31 PM

BigRusty

A better method would be silk screen printing. You set the type or artwork with the ink jet. You make a neg. You expose the neg to the treated silk screen, develop and print as many as you want. [...]

This won't work if you have grab irons or other obstructions on the surface so set up an 8 x 10 page full and print them on decal paper.

 

 

 

Yes, I considered screen printing but I don't think that's an option due to the irregularity of the surfaces and I don't want to decal hundreds of cars by hand. So in researching options, the one that really stands out is pad printing. I've had a hazy, general idea of how its done, but had not found good information until today. One of the respondants to this post provided some pretty good links. That also helped me find some videos and to contact a pad-printing company for more information.

After reading through the various articles and stuff it seems reasonable to me that there could be a home-built assembly rig to do some sort of pad printing on a small scale. The issues, as I understand them now, are primarily how to get the plate (the 'cliche'), obtaining the right type of pad for printing, and the inks. The remaining aspects would seem to be constructing a suitable rig to ink the cliche and move the pad over it to pick up the image, and then roll / stamp it in the right spot on the car.

I've already thought out the solution to some of this. The rest I need more info from the pad printing company regarding costs, what's available, etc. I also wouldn't mind knowing more-- from any source?-- about the hardness of the cliche needed, amount of time required to properly ink it, etc. More of the process details. It doesn't matter to me if its a mostly manual process as long as its repeatable and less tedious than decaling.

Another thing I'm thinking about, while I'm waiting for input from elsewhere, is whether or not the material used in those foam "stamping" pads that kids use-- that are shaped like trees, flowers, etc-- would be suitable for a process similar to pad printing, whether it would be possible to achieve suitable results in a low-cost setup.

The two big issues that I'm trying to resolve in my thinking are workpiece registration and how to handle "variable" printing (i.e., sequentially numbered cars, randomized build dates, etc). I think the big companies side-step this issue by simply making multiple cliches and running however many they need of each one, and then collating the output. Which would essentially make each car a "one-off" from my perspective and substantially raise the costs. There's gotta be a way to do it more effectively I'm thinking. Just not sure how... :)

 

jwhitten

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Posted by BigRusty on Monday, June 15, 2009 2:13 PM

A better method would be silk screen printing. You set the type or artwork with the ink jet. You make a neg. You expose the neg to the treated silk screen, develop and print as many as you want.

 Just Google Silk screen supplies and see what you can learn.

Try this: http://www.photoezsilkscreen.com/

Best of all you can do white printing as well as muliti color printing with multiple screens. Very fine screens are available to print reporting marks, etc.

I am producing 60 baggage and RPO cars. Decaling them would be too expensive if I could even buy them. By setting up a printing frame the car sides can be registered with small blocks to obtain precise location on every copy.

This won't work if you have grab irons or other obstructions on the surface so set up an 8 x 10 page full and print them on decal paper.

 

Modeling the New Haven Railroad in the transition era
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Posted by jwhitten on Monday, June 15, 2009 1:23 PM

maxman

 


thank you! That's what I've been looking for.

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Posted by maxman on Monday, June 15, 2009 1:15 PM
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Posted by jwhitten on Monday, June 15, 2009 1:08 PM

 Can either of you give a general overview of the process, materials used, etc? I still don't know much about it and would like to know more.

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Posted by cacole on Monday, June 15, 2009 1:06 PM

 Pad printing is something that requires special training, machinery and dies.  It is not for the do-it-yourselfer unless you're so wealthy that you can afford to spend hundreds or thousands of dollars per copy produced.

 

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Posted by jsoderq on Monday, June 15, 2009 1:02 PM

Pad printing is not really something you can do at home. It took me a couple months to  learn the process in a factory. It involves a ratther complex machine. an engraving plate etching, a large assortment of printing heads and fixtures.

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Pad Printing / Bulk Car Lettering
Posted by jwhitten on Monday, June 15, 2009 12:39 PM

 Does anybody know anything about "Pad Printing" and could either give a good description of it, and its various considerations, or else could point to a good online reference or book that I could read more about how its done? I'm primarily interested in learning about its basic principles, problems/issues to be aware of, and how to construct a simple pad printer for use at home.

I've also considered alternate technologies such as ink jet printing (starting from a sacrificed ink jet printer) but I'm not sure how well this would work. Certainly that idea has some merits if certain issues could be worked out such as controlling the ink deposit a short distance away from the print head (enough to allow feature clearance).

I don't want to do decals if I can help it, though that might be the most realistic way to go. I've got literally hundreds of cars to do, mostly hoppers and boxcars, and most undecorated still in kit form. So I'm trying to figure out how to set up a small personal-use assembly line to do it.

Any suggestions?

 

Thanks

jwhitten

Modeling the South Pennsylvania Railroad ("The Hilltop Route") in the late 50's

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