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Today's Topics:
1. Re: 3D printing (Kevin Karney)
2. Re: 3D printing (David Bell)
----------------------------------------------------------------------
Message: 1
Date: Fri, 05 Dec 2014 18:12:33 +0000
From: Kevin Karney <[email protected]>
To: Tony Moss <[email protected]>
Cc: [email protected]
Subject: Re: 3D printing
Message-ID: <[email protected]>
Content-Type: text/plain; charset="us-ascii"
Tony
All those bright young Design students are 3D printing things in plastic and
then using lost wax techniques to cast the final product in something really
solid.
K
Kevin Karney, MA JP
Freedom Cottage,
Llandogo,
Monmouth, NP25 4TP
01594 530 595
On 5 Dec 2014, at 13:30, Tony Moss <[email protected]> wrote:
Hi all,
I mentioned the possibility of making elaborate pierced gnomons using
3D printing in a very recent article in BSS Bulletin but I never expected the
real possibility to be so near at hand. Using plastic printed 'patterns' from
which to cast e.g. bronze gnomons would probably result in a non-rigid result
as cast metal is usually quite soft. I wonder if we will ever be able to print
particulate metals in 3D which could then be 'sintered'. This process is
rather like baking a cake but using metal ingredients to make rigid components.
No doubt I will probably now find that facts have overtaken this thought
already. :-(
Tony Moss
-----Original Message-----
From: Simon \[illustratingshadows via sundial <[email protected]
<mailto:[email protected]>>
To: John Pickard <[email protected] <mailto:[email protected]>>; Sundial List
<[email protected] <mailto:[email protected]>>
Sent: Fri, 5 Dec 2014 1:54
Attached Message
From: Simon [illustratingshadows <[email protected]
<mailto:[email protected]>>
To: John Pickard <[email protected] <mailto:[email protected]>>; Sundial
List <[email protected] <mailto:[email protected]>>
Subject: Re: 3D printers - PS an ooops
Date: Fri, 5 Dec 2014 01:53:26 +0000 (UTC)
ooops ~ the pictures I attached were for the dial without longitude
correction, sorry. Not relevant to the issue at hand, namely the key point was
the use of the .STL file type and suffix. US printer prices are similar to
those in Australia I think, I imagine other printer vendors may use a file type
other than .STL however their software should spell out what their printer
needs.
Simon
Simon Wheaton-Smith
www.illustratingshadows.com <http://www.illustratingshadows.com/>
Phoenix, Arizona, W112.1 N33.5
From: John Pickard <[email protected] <mailto:[email protected]>>
To: Sundial List <[email protected] <mailto:[email protected]>>
Sent: Thursday, December 4, 2014 6:11 PM
Subject: 3D printers
Good morning,
There was some discussion on the list a few months ago about 3D printers.
One of the leading electronics stores in Australia is now selling DIY kits
for a small 3D printer (Velleman K8200) for $AUD1300. It's a desk-top unit
that purely by chance I saw in operation at the local library a day or so
ago.
http://www.jaycar.com.au/productView.asp?ID=TL4020
<http://www.jaycar.com.au/productView.asp?ID=TL4020>
More info on the kit: www.k8200.eu <http://www.k8200.eu/>
The max dimensions of printed objects is 200 x 200 x 200 mm, which would be
too small for most outdoor dials, but could be ideal for prototyping
portable dials (e.g. armillary spheres, ring dials, etc.) The printed
resolution is: X and Y (wall thickness): 0.5 mm; Z: (layer thickness) 0.20 -
0.25 mm. Still not comparable to engraving, but an obvious harbinger of
things to come. If we think about how digital cameras and smart phones now
have amazing resolution, then most likely the resolution of these 3D
printers will be much better in a couple of years.
Software is Repetier: www.repetier.com <http://www.repetier.com/>
I have no idea how you enter specifications for an object. I found no
mention of CAD in my quick reading of material on the Repetier, so I guess
that they have some other way of doing it.
I have no doubt that similar printers are offered in most countries, and one
would be a Christmas present!
Cheers, John
John Pickard
[email protected] <mailto:[email protected]>
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Message: 2
Date: Fri, 5 Dec 2014 10:23:03 -0800
From: David Bell <[email protected]>
To: Tony Moss <[email protected]>
Cc: "[email protected]" <[email protected]>
Subject: Re: 3D printing
Message-ID: <[email protected]>
Content-Type: text/plain; charset="us-ascii"
Laser sintering 3D printing is definitely a current process! Bronze, stainless,
and others.
Dave
Sent from my iPhone
On Dec 5, 2014, at 5:30 AM, Tony Moss <[email protected]> wrote:
Hi all,
I mentioned the possibility of making elaborate pierced gnomons using
3D printing in a very recent article in BSS Bulletin but I never expected the
real possibility to be so near at hand. Using plastic printed 'patterns' from
which to cast e.g. bronze gnomons would probably result in a non-rigid result
as cast metal is usually quite soft. I wonder if we will ever be able to print
particulate metals in 3D which could then be 'sintered'. This process is
rather like baking a cake but using metal ingredients to make rigid components.
No doubt I will probably now find that facts have overtaken this thought
already. :-(
Tony Moss
-----Original Message-----
From: Simon \[illustratingshadows via sundial <[email protected]>
To: John Pickard <[email protected]>; Sundial List <[email protected]>
Sent: Fri, 5 Dec 2014 1:54
Attached Message
From: Simon [illustratingshadows <[email protected]>
To: John Pickard <[email protected]>; Sundial List
<[email protected]>
Subject: Re: 3D printers - PS an ooops
Date: Fri, 5 Dec 2014 01:53:26 +0000 (UTC)
ooops ~ the pictures I attached were for the dial without longitude
correction, sorry. Not relevant to the issue at hand, namely the key point was
the use of the .STL file type and suffix. US printer prices are similar to
those in Australia I think, I imagine other printer vendors may use a file type
other than .STL however their software should spell out what their printer
needs.
Simon
Simon Wheaton-Smith
www.illustratingshadows.com
Phoenix, Arizona, W112.1 N33.5
From: John Pickard <[email protected]>
To: Sundial List <[email protected]>
Sent: Thursday, December 4, 2014 6:11 PM
Subject: 3D printers
Good morning,
There was some discussion on the list a few months ago about 3D printers.
One of the leading electronics stores in Australia is now selling DIY kits
for a small 3D printer (Velleman K8200) for $AUD1300. It's a desk-top unit
that purely by chance I saw in operation at the local library a day or so
ago.
http://www.jaycar.com.au/productView.asp?ID=TL4020
More info on the kit: www.k8200.eu
The max dimensions of printed objects is 200 x 200 x 200 mm, which would be
too small for most outdoor dials, but could be ideal for prototyping
portable dials (e.g. armillary spheres, ring dials, etc.) The printed
resolution is: X and Y (wall thickness): 0.5 mm; Z: (layer thickness) 0.20 -
0.25 mm. Still not comparable to engraving, but an obvious harbinger of
things to come. If we think about how digital cameras and smart phones now
have amazing resolution, then most likely the resolution of these 3D
printers will be much better in a couple of years.
Software is Repetier: www.repetier.com
I have no idea how you enter specifications for an object. I found no
mention of CAD in my quick reading of material on the Repetier, so I guess
that they have some other way of doing it.
I have no doubt that similar printers are offered in most countries, and one
would be a Christmas present!
Cheers, John
John Pickard
[email protected]
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