Re: [CAD_CAM_EDM_DRO] CNC Painting

It's quite the big thing in auto production. I have a buddy who is in
charge of programming CNC paint machines for White/Volvo in our locale.
Movement-wise you do much the same things as in 5 axis CNC machining. Spray
paramaters are also under software control, to some degree.


At 08:02 AM 11/20/02 -0600, you wrote:

>echnidna wrote:
>
>>Hi Group
>>Can anyone comment or give info on the possibility of cnc spray painting

(non-electrostatic)

>>
>>Regards
>>Bob Thomas
>>
>>
>I have seen attempts over the years..... One I saw at least 20 years ago
>was simply a gantry device flipped up, and a gang of air brushes each
>with a different color. Each air brush had a specific tool offset
>applied, and I/O was used to trigger the one needed with a selenoid.
>
>Its downfalls were not being able to "vary" paint and air, (all ON or
>all OFF), and the biggest downfall was inavailability of the software to
>do anything but vector lines.
>Something similar was the use of a thick goooey UV cure colored urethane
>in a tube, that laid down "beads" of this stuff on acrylic to simulate
>Neon when backlit. I forgot the name of this stuff but could find it.
>The stuff came out of Canada and was quite popular. You can see signage
>made with it even today, but, I do not know who is doing it. I know
>PRECIX routers had a an attachment for it.
>
>Of course that is all changed. Today, go to any signage tade show, and
>you will see 20' wide billboard printers, printing raster images from
>just about any PC or Mac. Other than having large sprayheads, I would
>imagine it is not much different than a typical Inkjet printer. They are
>incredibly fast, AND accurate. Oh,,, also reeeeaaall expensive.
>
>Depending on what you would like to do, it likely can be accomplished by
>a home brewer with todays software availability.
>
>Chris L
>
>>
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>
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>
>Addresses:
>FAQ: http://www.ktmarketing.com/faq.html
>FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
>Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
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>List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
>Moderator: jmelson@... timg@... [Moderator]
>URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
>OFF Topic POSTS: General Machining
>If you wish to post on unlimited OT subjects goto:

aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if
you have trouble.

>http://www.metalworking.com/news_servers.html
>
>http://groups.yahoo.com/group/jobshophomeshop I consider this to be a

sister site to the CCED group, as many of the same members are there, for
OT subjects, that are not allowed on the CCED list.

>
>NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.

DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........

>bill
>List Mom
>List Owner
>
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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>

Regards, Hoyt McKagen

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