[HN Gopher] BMW's New Overspray-Free Paint Works Like an Inkjet ...
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BMW's New Overspray-Free Paint Works Like an Inkjet Printer
Author : clouddrover
Score : 50 points
Date : 2021-10-02 04:59 UTC (18 hours ago)
(HTM) web link (www.carscoops.com)
(TXT) w3m dump (www.carscoops.com)
| hownottowrite wrote:
| The technology actually belongs to Durr. They've been building
| paint shops for BMW for a few years now.
|
| https://www.durr.com/en/products/paint-shop-application-tech...
| amelius wrote:
| It's actually by this company:
|
| https://www.durr.com/en/products/paint-shop-application-tech...
| tguvot wrote:
| >BMW's New Overspray-Free Paint Works Like an Inkjet Printer
|
| Does it mean that it won't paint black if it's out of color
| cartridge ?
| [deleted]
| jcims wrote:
| Cool concept, looks super slow relative to exciting assembly
| plant paint though. Upside is you can buy a plaid car from the
| factory, downside is it's +$5k and an extra month lead time.
| joosters wrote:
| The article claims that it _saves_ money, rather than costing
| extra.
| smoyer wrote:
| Looking at the orange base-coat in the video, I'd suggest it
| saves money versus hand-painted custom paint jobs but as
| every surface of the car (inside doors) are orange, I'd say
| that was applied by the traditional robot painters (with HVLP
| guns).
| jcims wrote:
| I think that is relative to custom paint vs existing manual
| methods. That i would agree with, i just don't see this
| replacing single tone paint methods. Which likely wasn't why
| it was built, so not sure why i'm pointing that out haha.
| sen wrote:
| Considering there's already 6 month waits on new cars, I'd
| happily throw in an extra month if it meant I got to use an
| online editor to design my own paint job.
| dkdk8283 wrote:
| Is this a new technology or just a new use case for an existing
| process? Inkjet print heads are very close to the surface being
| painted but this process appears to have a few inches of
| clearance.
|
| I suspect the paint has additives to help with this process. We
| didn't see any color other than black in this demo.
|
| The video doesn't show any close up pictures of the process but
| it looks novel.
| jjoonathan wrote:
| I've seen this in UV printers, too (UV = inkjet, but the ink is
| cured with UV instead of solvent evaporation).
|
| I poked around to figure out how they can print from so far
| away, but couldn't find any sources talking about it, and if
| printing from ~10cm away needs special tricks to accomplish or
| not.
|
| The one trick I can think of to extend print distance would be
| increasing the drop size. That would probably be acceptable
| when printing on cars (the article) or mugs (UV printers) -- is
| that the trick?
| Dylovell wrote:
| Hopefully this develops into a handheld, so I can use this to
| paint the walls in my house without spending hours taping.
| Freaken wrote:
| This is electrostatically applied, a bit like powder coating
| from my understanding, so yeah, it probably won't work on
| drywall.
| omgtehlion wrote:
| From TFA: > the new method works without electrostatics,
| relying instead on jet application.
| Freaken wrote:
| True, my bad, read the exact opposite.
| omgtehlion wrote:
| There are a lot of (quite limited) handheld ink printers on
| aliexpress ))
| iratewizard wrote:
| Can this be applied to make those creepy anime cars, but directly
| onto the body instead of a vinyl wrap?
| mothsonasloth wrote:
| Non-OEM paint cartridge detected. Unable to paint car.
| idiotsecant wrote:
| I think the 'no overspray' aspect of this is probably a bit
| oversold, given that there doesn't appear to be any novel
| technology here - just close spray through a flow orifice. People
| who are willing to pay for this kind of service want clean, high
| contrast lines. Tape does a great job of this, I am skeptical
| that this can compare. If it does I'm sure it'll be huge though.
| rootusrootus wrote:
| The lines in the video look very comparable to tape lines.
| Would need to see very close up to be 100% sure but it looks
| promising.
| birdman3131 wrote:
| What I notice is they did an outline at a slower and likely
| higher accuracy mode then came back and filled at a higher
| speed.
| throwawaysea wrote:
| Given that car factories already use charged paint particles and
| bodies to minimize paint usage and waste, how useful is the
| overspray aspect here?
| krasin wrote:
| >The overspray-free technology also allows vehicles with
| intricate designs, including two-tone offerings, to be painted
| faster and cheaper.
|
| This is the use case. As a matter of historical anecdote, the
| very same use case was the motivation to develop painter's
| tape: https://paintdenver.com/the-history-of-painters-tape/
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