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Paperd.Ink – A hackable e-paper display

paperd.ink

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Re: Paperd.Ink – A hackable e-paper display

#31

Post by SrslyJosh »

robertlangdon wrote: post #16
Reventlov wrote: post #12

Earlier quoted context omitted.

Well, it's 3d printed, so, yeah, probably shitty because printed on the faster settings.

Hey, Yes it 3D printed, we wanted to test the prototype. If you have any suggestions do let us know. Thanks!

I think some combination of paint, sanding, and clearcoat would clean it up to the point of looking like it came out of a mold.

If you search for something along the lines of "paint and sand 3d print" or "finish 3d print" you'll find lots of different articles.

Re: Paperd.Ink – A hackable e-paper display

#32

Post by dan1234 »

missosoup wrote: post #13
dan1234 wrote: post #9

Earlier quoted context omitted.

Last time I looked into this, for a potential project, I found Waveshare seem to be the leaders for the hacker/hobby space. They’ve got a nice 12.5” display (1304x984) @ $170, which is pricey but big enough for league tables. https://www.waveshare.com/product/displays/12.48inch-e-paper...

The refresh times on waveshare panels are bad enough to make them useless for most interesting applications. That particular panel takes 16s to refresh.

16s would be for a full refresh though. If you're making an information based display you might only need to change a small area per update, which would be faster (though I couldn't find. any refresh speed in the datasheet).

Re: Paperd.Ink – A hackable e-paper display

#33

Post by numpad0 »

Reventlov wrote: post #12
missosoup wrote: post #5

http://web.archive.org/web/20200216074239/https://paperd.ink... https://www.youtube.com/watch?v=srrAUOsWHMs Enclosure doesn't look great.

Well, it's 3d printed, so, yeah, probably shitty because printed on the faster settings.

Well, 3D printers does far better with quality parts, dry PLA and in expert hands, and thus people are stupid, except it works so they are not.

Re: Paperd.Ink – A hackable e-paper display

#34

Post by robertlangdon »

UPDATE:

Unfortunately our website crashed and we're fixing it.

Youtube: https://www.youtube.com/watch?v=srrAUOsWHMs&t=3s

User Research Typeform: https://prasad463729.typeform.com/to/cmp81P

Hackaday: https://hackaday.io/project/168668-paperdink

Github: https://github.com/rgujju/paperdink

Specs: Monochrome, 4.2", 400x300 resolution

We're looking at a selling price of $59 currently however there's a lot of scope to improve further. Looking at crowdfunding and other options for funding.

Lastly, this is the first time we've posted on HN so please bear with me if there were any novice mistakes (like spamming link/lines in every comment, which has been rectified now).

Thanks for all the support and feedback coming in!

Re: Paperd.Ink – A hackable e-paper display

#35

Post by numpad0 »

dan1234 wrote: post #32
missosoup wrote: post #13

Earlier quoted context omitted.

The refresh times on waveshare panels are bad enough to make them useless for most interesting applications. That particular panel takes 16s to refresh.

16s would be for a full refresh though. If you're making an information based display you might only need to change a small area per update, which would be faster (though I couldn't find. any refresh speed in the datasheet).

WaveShare supplied code only allows full resolution full refresh with half tones and everything.

IIRC someone figured how to expedite it but that someone had to.

Re: Paperd.Ink – A hackable e-paper display

#36

Post by pcl »

mellosouls wrote: post #30

This is cool, but e-ink displays have generally had 3 major differentiators from normal screens: 1. Comfort reading for long periods. 2. Ability to read outside in the sun. 3. Battery duration. Of those, by far the most important is the first, and this product is specifically targeted away from that. The third isn't a big deal for a stationary item that can be wired or plugged in. I wish you well, but I don't immedia…

I really like the ambient nature of e-ink displays. I don’t want something emitting light and dragging my attention to it, but I do want to be able to glance at the clock or the bus schedule etc.

This looks like a product well-suited to that sort of use case.

Re: Paperd.Ink – A hackable e-paper display

#37

Post by tasogare »

robertlangdon wrote: post #16
Reventlov wrote: post #12

Earlier quoted context omitted.

Well, it's 3d printed, so, yeah, probably shitty because printed on the faster settings.

Hey, Yes it 3D printed, we wanted to test the prototype. If you have any suggestions do let us know. Thanks!

What is the expected retail price? The information is not present on the page but it’s a really important one.

Edit: $59 mentioned lower in the thread.

Re: Paperd.Ink – A hackable e-paper display

#38

Post by 74ls00 »

mellosouls wrote: post #30

This is cool, but e-ink displays have generally had 3 major differentiators from normal screens: 1. Comfort reading for long periods. 2. Ability to read outside in the sun. 3. Battery duration. Of those, by far the most important is the first, and this product is specifically targeted away from that. The third isn't a big deal for a stationary item that can be wired or plugged in. I wish you well, but I don't immedia…

4. Aesthetics

Some of us just prefer the look of e-ink displays.

Re: Paperd.Ink – A hackable e-paper display

#39

Post by lwhi »

mellosouls wrote: post #30

This is cool, but e-ink displays have generally had 3 major differentiators from normal screens: 1. Comfort reading for long periods. 2. Ability to read outside in the sun. 3. Battery duration. Of those, by far the most important is the first, and this product is specifically targeted away from that. The third isn't a big deal for a stationary item that can be wired or plugged in. I wish you well, but I don't immedia…

How about energy usage generally?

Reduction seems to be an important trend considering drives to try to reduce green house gas emissions.

Re: Paperd.Ink – A hackable e-paper display

#40

Post by GordonS »

SrslyJosh wrote: post #29

This is a cool idea, but I think the capacitive touch buttons are a mistake. I have two different appliances that have them, and the lack of tactile feedback is really irritating, especially when a button press doesn't result in instant visual/audio feedback from the device. (Makes you wonder whether or not you actually activated the button.) I strongly suggest using actual buttons.

I also really dislike buttons without feedback - you press them, and get nothing back. I often end up pressing them far harder than I probably should; the lack of tactile feedback seems to trick me into doing this.
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