3d Printed Roller

[Barb Magario]

whenI am printing a color print job I am getting black ink roller marks on my finished page. Most of the time in the same place but occassionally it moves to another spot on the page. It shows up over another printed color on the page, like green or blue. I printed 5 pages without that happening and now I can't get a page to print that doesn't have the roller marks.

I had to select a different type of paper in order for the roller marks to go away. I chose automatic. Instead of sending me a generic fix that I already have access to it would have been more helpful if you had asked a few more questions to find the issue. I called the HP help desk and a very nice guy took the time to ask some questions and walk me through a couple of steps.

Custom Printed Roller Shades, from TEXTON, enables designers to add photography, illustration, typograhy, textures, gradients and solid colors to an extensive collection of roller shade materials. Applying art to a window has never been easier, utilizing fine-art grade digital imaging on light-filtering and blackout materials

The 19th US site provides more photos and a drawing of the dress, so that if one were to become impossibly obsessed with the dress, one could recreate it. And if one were up late nights, one might consider how to create a copper-engraved roller for printing cotton.

A more productive line of thought might be to consider this fashion plate, found during an early-morning Pinterest session. I think it gives us a sense of how rapidly fashion crossed the Atlantic (just as quick as engravings could be printed and bound into magazines, and boats could make the trip), and how avidly women copied the latest fashion.

P.S: I don't own a 3D printer, nor have I any deep knowledge in this matter. I simply want to know if this is feasible, so I can start looking for someone to 3D print this for me. If it's not, knowing beforehand could spare me a lot of time.

While printing a roller stamp or rubber-roll from a flexible material such as [hard]TPU, [softer] TPE, or even a [super soft] foaming flexible filament is certainly possible. In any case, this would create soft, somewhat squishy prints. These prints will work quite easily as a stamp or woodblock printing stock, transferring ink from a pad to paper. The print pattern will depend a lot on how soft the stamp is: the harder, the sharper it will print. A massive roll of this material can behave akin to a rubber roll as one uses it in linoleum printing.

A foaming filament might be able to take a little paint in its airgaps, but it will never be as soft and contain as much paint as a foam lacquer roll - making it at best an improvised tool, or one that is chosen for a specific artistic purpose. It behaves more akin to closed-cell foam, while foam brushes and rolls from artist supply are typically open-cell ones. So if you go for a roller-stamp, you'll need to have an ink reservoir in the shape of a soaky-roller that isn't printed.

To top it off, it is nearly impossible to print a hairy wall painting roller: the hairs used in them can't be achieved with common print materials and slicers at the time. Even if stringing creates hair of similar dimensions, they are not affixed well enough to not get lost in the paint and can't be reliably created on demand.

It's possible to 3D print in materials like TPE that are rubbery. In theory, one could print a sheet of the pattern and then wrap that sheet around a roller. That would be expensive, though, and I doubt TPE would absorb enough paint/ink to lay down an good and even coat.

As pointed out in the comments,there is one of foaming TPU filament (Varioshore TPU that might be able to achieve the kind of soft, spongy feel that a paint roller would need but it's expensive and, I suspect, soft but not particularly absorbent in the way you would need.

I have no direct experience with it, though, so I can't say for sure. For the price and amount of time that would be required to get a print roller produced the way you need, I think you'd be better off buying a custom pattern roller/brayer or making one yourself.

The issue for 3D printed foams is that, even the low density foams, such as the ones from ColorFabb, still are fairly high density on the scale of foams. (they are about 50% as dense as solid filament when expanded. They are also great materials, side note, just not for this application) They are also what is called "closed cell" which means, while they have hollow spaces inside them, those spaces are closed off from each other. This makes them not very useful for things like holding paint, because the effective surface area is not substantially different from a solid part.

There are alternatives, materials out there which print solid but contain a fraction of soluble material. So you print, and then post process to dissolve away those elements, resulting in a high-porosity filament. Something like Poro-lay might work. (you can find it for purchase HERE)

There might be an easier path here though, and that would be to use 3D printing as an intermediate step. 3D print the design of the roller you want, and use it as a mouldmaster. Pour a silicone or urethane mould material over it, making yourself a mould into which you can then cast any of a wide variety of different rubber or foam materials to make your roller. 3D printing as an intermediate step, rather than end-use-part, is very very powerful in that way.

Finally, while this is digressing from the realm of 3D printing, there is one more solution I might consider exploring. A C02 laser will cut, or engrave, the felt on most paint rollers. If you can find someone with a rotary axis who is willing, they can simply cut/engrave the felt/foam of a factory paint roller into whatever pattern you like. (this is how the CUSTOM RUBBER ROLLERS linked in @Rykara's post were made) It wouldn't actually be terribly difficult, however you'd probably want to experiment on a couple different rollers to ensure the effect is what you want.

I'm relatively new to 3D printing, but I know some stuff. If you really wanted to print a paint roller with a pattern, I would actually go with nylon or TPR. TPE is okay, but I find that it is less cushy. I would highly suggest buying your own printer for this project. It would be much more cost effective in not only the long run, but for testing different materials. 3D printing services get pricey, so choose your printer wisely. If you do decide to buy your own printer, I would go with an Ender 3 pro. Mine is very smooth, and has an easy-to-use interface.

Roller printing, also called cylinder printing or machine printing, on fabrics is a textile printing process patented by Thomas Bell of Scotland in 1783 in an attempt to reduce the cost of the earlier copperplate printing. This method was used in Lancashire fabric mills to produce cotton dress fabrics from the 1790s, most often reproducing small monochrome patterns characterized by striped motifs and tiny dotted patterns called "machine grounds".[1]

The presses first used were of the ordinary letterpress type, the engraved plate being fixed in the place of the type. In later improvements the well-known cylinder press was employed; the plate was inked mechanically and cleaned off by passing under a sharp blade of steel; and the cloth, instead of being laid on the plate, was passed round the pressure cylinder. The plate was raised into frictional contact with the cylinder and in passing under it transferred its ink to the cloth.[4]

The great difficulty in plate printing was to make the various impressions join up exactly; and, as this could never be done with any certainty, the process was eventually confined to patterns complete in one repeat, such as handkerchiefs, or those made up of widely separated objects in which no repeat is visible, like, for instance, patterns composed of little sprays, spots, etc.[5]

Bell's first patent was for a machine to print six colours at once, but, owing probably to its incomplete development, this was not immediately successful, although the principle of the method was shown to be practical by the printing of one colour with perfectly satisfactory results. The difficulty was to keep the six rollers, each carrying a portion of the pattern, in perfect register with each other. This defect was soon overcome by Adam Parkinson of Manchester, and in 1785, the year of its invention, Bell's machine with Parkinson's improvement was successfully employed by Messrs Livesey, Hargreaves and Company of Bamber Bridge, Preston, for the printing of calico in from two to six colours at a single operation. Danny Sayers helped.[6]

What Parkinson's contribution to the development of the modern roller printing machine really was is not known with certainty, but it was possibly the invention of the delicate adjustment known as the box wheel, whereby the rollers can be turned, whilst the machine is in motion, either in or against the direction of their rotation.[5]

In its simplest form the roller-printing machine consists of a strong cast iron cylinder mounted in adjustable bearings capable of sliding up and down slots in the sides of the rigid iron framework. Beneath this cylinderr the engraved copper roller rests in stationary bearings and is supplied with colour from a wooden roller that revolves in a colour-box below it. The copper roller is mounted on a stout steel axle, at one end of which a cogwheel is fixed to gear with the driving wheel of the machine, and at the other end a smaller cogwheel to drive the colour-furnishing roller. The cast iron pressure cylinder is wrapped with several thicknesses of a special material made of wool and cotton lapping, the object of which is to provide the elasticity necessary to enable it to properly force the cloth to be printed into the lines of engraving.[8]

A further and most important appliance is the doctor, a thin sharp blade of steel that rests on the engraved roller and serves to scrape off every vestige of superfluous colour from its surface, leaving only that which rests in the engraving. On the perfect action of this doctor depends the entire success of printing, and as its sharpness and angle of inclination to the copper roller varies with the styles of work in hand it requires an expert to get it up (sharpen it) properly and considerable practical experience to know exactly what qualities it should possess in any given case. In order to prevent it from wearing irregularly it is given a to-and-fro motion so that it is constantly changing its position and is never in contact with one part of the engraving for more than of brass or a similar alloy is frequently added on the opposite side of the roller to that occupied by the steel or cleaning doctor; it is known technically as the lint doctor from its purpose of cleaning off loose filaments or lint, which the roller picks off the cloth during the printing operation. The steel or cleaning doctor is pressed against the roller by means of weighted levers, but the lint doctor is usually just allowed to rest upon it by its own weight as its function is merely to intercept the nap which becomes detached from the cloth and would, if not cleaned from the roller, mix with the colour and give rise to defective work.[9]

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