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Search found 30 matches
- Sun May 31, 2015 2:19 pm
- Forum: Resins
- Topic: Resins For Investment Casting
- Replies: 57
- Views: 131129
- Sat May 30, 2015 8:31 am
- Forum: Resins
- Topic: Resins For Investment Casting
- Replies: 57
- Views: 131129
Re: Resins For Investment Casting
The ROR is here: http://bucktownpolymers.com/ror00.html
- Fri May 01, 2015 11:11 am
- Forum: Resins
- Topic: Any resins strong enough for engineering purpose ?
- Replies: 12
- Views: 38704
Re: Any resins strong enough for engineering purpose ?
ABS types are not a problem. The problem you are starting out with is using bottom up projection through a vat and peeling every layer along with using UV. This limits the viscosity, solids content and curing rate of the resins and composites as well as curing depth. There is a project that is using...
- Thu Apr 30, 2015 11:59 pm
- Forum: Resins
- Topic: Resins For Investment Casting
- Replies: 57
- Views: 131129
Re: Resins For Investment Casting
Bucktown Polymers has a new rinse out resin for investment casting. It does not burn out or melt out. It is rinsed out with hot water. After the cured polymer or rinse out resin (ROR) is coated with the investment and left to dry for two hours the investment is soaked in hot water for 1-2 hours to a...
- Thu Apr 30, 2015 11:20 pm
- Forum: Hardware
- Topic: PICO Projectors and Lithography
- Replies: 0
- Views: 11788
PICO Projectors and Lithography
Here's a good slide show covering how PICO projectors operate: http://www.slideshare.net/Funk98/pico-projector-12565671 The problem that people are having with getting a PICO projector to work with a 3D printer is that the spectra produced by the three LED's or three lasers used (Red (635nm), Green ...
- Thu Apr 30, 2015 11:02 pm
- Forum: General
- Topic: Pico Projector base 3D printer
- Replies: 5
- Views: 15617
Re: Pico Projector base 3D printer
PICO projectors are similar to LCD projectors only that PICO projectors use three LED's vs a mercury lamp as the light source. You can use a unmodified LED PICO projector with resins sensitive to Blue (460nm) light. See this thread for more info: http://www.buildyourownsla.com/forum/viewtopic.php?f=...
- Thu Apr 30, 2015 10:56 pm
- Forum: General
- Topic: LCD Resin 3D Printer - 'UV' source
- Replies: 3
- Views: 11813
Re: LCD Resin 3D Printer - 'UV' source
@CidVilas
See this thread for other options. You don't need a UV LED with a LCD:
viewtopic.php?f=12&t=84&start=210#p9616
See this thread for other options. You don't need a UV LED with a LCD:
viewtopic.php?f=12&t=84&start=210#p9616
- Thu Apr 30, 2015 10:52 pm
- Forum: General
- Topic: LCD Projector
- Replies: 6
- Views: 15094
Re: LCD Projector
LCD projectors are fine for lithography. Some people are just trying to use the wrong resins.
See this thread for the hows and whys
viewtopic.php?f=12&t=84&start=210#p9616
See this thread for the hows and whys
viewtopic.php?f=12&t=84&start=210#p9616
- Thu Apr 30, 2015 10:36 pm
- Forum: General
- Topic: Two-photon polymerization
- Replies: 1
- Views: 6978
Re: Two-photon polymerization
Femtosecond laser sources are very expensive.
Try building an inverse microscope SLA printer. It's good for features down to ~1um without too much expense or effort.
http://openlunchbox.com/smf/index.php?topic=40.0
Try building an inverse microscope SLA printer. It's good for features down to ~1um without too much expense or effort.
http://openlunchbox.com/smf/index.php?topic=40.0
- Thu Apr 30, 2015 9:28 pm
- Forum: Resins
- Topic: Any resins strong enough for engineering purpose ?
- Replies: 12
- Views: 38704
Re: Any resins strong enough for engineering purpose ?
@ Hugues
If you are able to order 20Kg or more at a time or cover a day or two of formulation time we can blend resins to your specs
http://bucktownpolymers.com/services.html
If you are able to order 20Kg or more at a time or cover a day or two of formulation time we can blend resins to your specs
http://bucktownpolymers.com/services.html