On Sun, Mar 20, 2016 at 10:10 AM, efbaskin@hotmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:It doesn't work well at all. I have the Samsung Gear VR viewer and the color fringing and pincushioning are noticeable not very far away from the the center of the photo. That's assuming that you can get your eyes to merge the left and right image together in the first place. The interoculars don't match between the viewer and a mounted pair, and since both are fixed, that's a problem.
If you really want to investigate without buying one, then take an image to a Best Buy and see for yourself. They will have a Gear VR on the floor for customers to look at.The Gear VR is it's own thing and it's great with what it was designed for. There's a free app called Google Cardboard Camera that does 360 degree stereo panoramas. And yes, it does stereo with only one lens. Retinal rivalry is an issue when there are objects that move, but that doesn't keep it from being a cool app IMO.
On Sun, Mar 20, 2016 at 10:10 AM, efbaskin@hotmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:It doesn't work well at all. I have the Samsung Gear VR viewer and the color fringing and pincushioning are noticeable not very far away from the the center of the photo. That's assuming that you can get your eyes to merge the left and right image together in the first place. The interoculars don't match between the viewer and a mounted pair, and since both are fixed, that's a problem.If you really want to investigate without buying one, then take an image to a Best Buy and see for yourself. They will have a Gear VR on the floor for customers to look at.The Gear VR is it's own thing and it's great with what it was designed for. There's a free app called Google Cardboard Camera that does 360 degree stereo panoramas. And yes, it does stereo with only one lens. Retinal rivalry is an issue when there are objects that move, but that doesn't keep it from being a cool app IMO.
On Sun, Mar 20, 2016 at 10:10 AM, efbaskin@hotmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:It doesn't work well at all. I have the Samsung Gear VR viewer and the color fringing and pincushioning are noticeable not very far away from the the center of the photo. That's assuming that you can get your eyes to merge the left and right image together in the first place. The interoculars don't match between the viewer and a mounted pair, and since both are fixed, that's a problem.If you really want to investigate without buying one, then take an image to a Best Buy and see for yourself. They will have a Gear VR on the floor for customers to look at.The Gear VR is it's own thing and it's great with what it was designed for. There's a free app called Google Cardboard Camera that does 360 degree stereo panoramas. And yes, it does stereo with only one lens. Retinal rivalry is an issue when there are objects that move, but that doesn't keep it from being a cool app IMO.
On Mar 21, 2016, at 9:20 AM, Vladimir Galkin vlagal57@yahoo.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:
They can and do; there's just the initial cost of getting the 3D printer, after that I'm not sure what the 'per mount' cost would be but it can't be very much. Depending on the cost of the printer the quality of the mounts will vary but you certainly don't need a very big one to do it.Wasn't there someone out there that was going to do a run of paper mounts at some point? Again, the initial setup is the cost, 'per mount' costs are pretty low.I've stocked up on mounts, should last me a while, but I'm planning 3D printing mine when I run out of the ones I have... I'm more worried that they are going to stop making 120 film before all of that!V
From: "Joe Staus jjstaus@yahoo.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: "MF3D-group@yahoogroups.com" <MF3D-group@yahoogroups.com>
Sent: Monday, March 21, 2016 7:55 AM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
I wonder if, someday soon, 3d printers will be able to produce mounts at a reasonable cost??? (Google thingiverse for Ideas)
From: "Todd Schlemmer theschlem@gmail.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: MF3D-group@yahoogroups.com
Sent: Sunday, March 20, 2016 8:26 PM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
Thanks! That is a great and helpful answer!
--
.-. .-. . . . .-. . .
`-. | |-| | |- |\/|
`-' `-' ' ` `-' `-' ' `On Sun, Mar 20, 2016 at 10:10 AM, efbaskin@hotmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:It doesn't work well at all. I have the Samsung Gear VR viewer and the color fringing and pincushioning are noticeable not very far away from the the center of the photo. That's assuming that you can get your eyes to merge the left and right image together in the first place. The interoculars don't match between the viewer and a mounted pair, and since both are fixed, that's a problem.If you really want to investigate without buying one, then take an image to a Best Buy and see for yourself. They will have a Gear VR on the floor for customers to look at.The Gear VR is it's own thing and it's great with what it was designed for. There's a free app called Google Cardboard Camera that does 360 degree stereo panoramas. And yes, it does stereo with only one lens. Retinal rivalry is an issue when there are objects that move, but that doesn't keep it from being a cool app IMO.
>>> I wonder if, someday soon, 3d printers will be able to produce mounts at a reasonable cost???
On Mon, Mar 21, 2016 at 12:14 PM, 'Geoffrey S. Waldo' gfpguy1@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:I suggest taking some existing plastic mounts we like, and making replica molds in silicone. Then one can simply cast positive replicas in urethane or similar.
Sent from my iPhone-----------------------------------------------------------------My personal contact information:Email: Gfpguy1@gmail.comCell: 505-204-6979Home: 505-930-5139Residential Mailing Address(please use this as the default unless otherwise advised):Geoffrey S. Waldo----------Consulting:**Protein Solubility, Folding, Engineering, & Detection**----------Work Contact Information:Geoffrey S. Waldo, PhD
Mail Stop M888
Los Alamos National Laboratory
Los Alamos, NM 87545
Tel: 505-667-8161 email: waldo@LANL.gov
Fax: 505-665-3024
Cell: 505-204-6979
Los Alamos Fluorescent Proteins Website: http://www.lanl.gov/projects/gfp/
•Superfolder, Folding Reporter, Split Proteins
•Tools for engineering protein folding, stability, and solubility
•Protein interactions, tagging, and detection
ISFI Integrated Center for Structure and Function Innovation web site:http://techcenter.mbi.ucla.edu
On Mar 21, 2016, at 9:20 AM, Vladimir Galkin vlagal57@yahoo.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:They can and do; there's just the initial cost of getting the 3D printer, after that I'm not sure what the 'per mount' cost would be but it can't be very much. Depending on the cost of the printer the quality of the mounts will vary but you certainly don't need a very big one to do it.Wasn't there someone out there that was going to do a run of paper mounts at some point? Again, the initial setup is the cost, 'per mount' costs are pretty low.I've stocked up on mounts, should last me a while, but I'm planning 3D printing mine when I run out of the ones I have... I'm more worried that they are going to stop making 120 film before all of that!V
From: "Joe Staus jjstaus@yahoo.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: "MF3D-group@yahoogroups.com" <MF3D-group@yahoogroups.com>
Sent: Monday, March 21, 2016 7:55 AM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
I wonder if, someday soon, 3d printers will be able to produce mounts at a reasonable cost??? (Google thingiverse for Ideas)
From: "Todd Schlemmer theschlem@gmail.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: MF3D-group@yahoogroups.com
Sent: Sunday, March 20, 2016 8:26 PM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
Thanks! That is a great and helpful answer!
--
.-. .-. . . . .-. . .
`-. | |-| | |- |\/|
`-' `-' ' ` `-' `-' ' `On Sun, Mar 20, 2016 at 10:10 AM, efbaskin@hotmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:It doesn't work well at all. I have the Samsung Gear VR viewer and the color fringing and pincushioning are noticeable not very far away from the the center of the photo. That's assuming that you can get your eyes to merge the left and right image together in the first place. The interoculars don't match between the viewer and a mounted pair, and since both are fixed, that's a problem.If you really want to investigate without buying one, then take an image to a Best Buy and see for yourself. They will have a Gear VR on the floor for customers to look at.The Gear VR is it's own thing and it's great with what it was designed for. There's a free app called Google Cardboard Camera that does 360 degree stereo panoramas. And yes, it does stereo with only one lens. Retinal rivalry is an issue when there are objects that move, but that doesn't keep it from being a cool app IMO.
On Mon, Mar 21, 2016 at 7:49 PM, Todd Schlemmer theschlem@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:>>> I wonder if, someday soon, 3d printers will be able to produce mounts at a reasonable cost???I have done exactly that. I modeled my original mounts on a Holga mount, but was summarily informed here that the Holga mount dimensions were suboptimal. I changed them to 80 X 140 mm size, with 54mm square apertures with a 63mm spacing. They're very sturdy and cost pennies each, but take about 10 minutes? per mount.I can easily modify dimensions if you have a preference for another application:let me know.Todd
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`-' `-' ' ` `-' `-' ' `On Mon, Mar 21, 2016 at 12:14 PM, 'Geoffrey S. Waldo' gfpguy1@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:I suggest taking some existing plastic mounts we like, and making replica molds in silicone. Then one can simply cast positive replicas in urethane or similar.
Sent from my iPhone-----------------------------------------------------------------My personal contact information:Email: Gfpguy1@gmail.comCell: 505-204-6979Home: 505-930-5139Residential Mailing Address(please use this as the default unless otherwise advised):Geoffrey S. Waldo----------Consulting:**Protein Solubility, Folding, Engineering, & Detection**----------Work Contact Information:Geoffrey S. Waldo, PhD
Mail Stop M888
Los Alamos National Laboratory
Los Alamos, NM 87545
Tel: 505-667-8161 email: waldo@LANL.gov
Fax: 505-665-3024
Cell: 505-204-6979
Los Alamos Fluorescent Proteins Website: http://www.lanl.gov/projects/gfp/
•Superfolder, Folding Reporter, Split Proteins
•Tools for engineering protein folding, stability, and solubility
•Protein interactions, tagging, and detection
ISFI Integrated Center for Structure and Function Innovation web site:http://techcenter.mbi.ucla.edu
On Mar 21, 2016, at 9:20 AM, Vladimir Galkin vlagal57@yahoo.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:They can and do; there's just the initial cost of getting the 3D printer, after that I'm not sure what the 'per mount' cost would be but it can't be very much. Depending on the cost of the printer the quality of the mounts will vary but you certainly don't need a very big one to do it.Wasn't there someone out there that was going to do a run of paper mounts at some point? Again, the initial setup is the cost, 'per mount' costs are pretty low.I've stocked up on mounts, should last me a while, but I'm planning 3D printing mine when I run out of the ones I have... I'm more worried that they are going to stop making 120 film before all of that!V
From: "Joe Staus jjstaus@yahoo.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: "MF3D-group@yahoogroups.com" <MF3D-group@yahoogroups.com>
Sent: Monday, March 21, 2016 7:55 AM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
I wonder if, someday soon, 3d printers will be able to produce mounts at a reasonable cost??? (Google thingiverse for Ideas)
From: "Todd Schlemmer theschlem@gmail.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: MF3D-group@yahoogroups.com
Sent: Sunday, March 20, 2016 8:26 PM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
Thanks! That is a great and helpful answer!
--
.-. .-. . . . .-. . .
`-. | |-| | |- |\/|
`-' `-' ' ` `-' `-' ' `On Sun, Mar 20, 2016 at 10:10 AM, efbaskin@hotmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:It doesn't work well at all. I have the Samsung Gear VR viewer and the color fringing and pincushioning are noticeable not very far away from the the center of the photo. That's assuming that you can get your eyes to merge the left and right image together in the first place. The interoculars don't match between the viewer and a mounted pair, and since both are fixed, that's a problem.If you really want to investigate without buying one, then take an image to a Best Buy and see for yourself. They will have a Gear VR on the floor for customers to look at.The Gear VR is it's own thing and it's great with what it was designed for. There's a free app called Google Cardboard Camera that does 360 degree stereo panoramas. And yes, it does stereo with only one lens. Retinal rivalry is an issue when there are objects that move, but that doesn't keep it from being a cool app IMO.
>I suspect that you'll find that the output from the home/hobby 3D
> They can and do; there's just the initial cost of getting the 3D
> printer, after that I'm not sure what the 'per mount' cost would be
> but it can't be very much. ??Depending on the cost of the printer
> the quality of the mounts will vary but you certainly don't need a
> very big one to do it.
> Wasn't there someone out there that was going to do a run of paperThat was me. The set up cost wound up being much higher than
> mounts at some point? Again, the initial setup is the cost, 'per
> mount' costs are pretty low.
> I've stocked up on mounts, should last me a while, but I'm planningI also have a bunch of mounts. I have a lot of unmounted slides, so
> 3D printing mine when I run out of the ones I have... ??I'm more
> worried that they are going to stop making 120 film before all of
> that!
> There are several companies that supply these.I have been getting ads and links for a new home laser cutter that is
> There are several companies that supply these.
>>>I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.>>>
>
> They can and do; there's just the initial cost of getting the 3D
> printer, after that I'm not sure what the 'per mount' cost would be
> but it can't be very much. ??Depending on the cost of the printer
> the quality of the mounts will vary but you certainly don't need a
> very big one to do it.
> Wasn't there someone out there that was going to do a run of paper
> mounts at some point? Again, the initial setup is the cost, 'per
> mount' costs are pretty low.
> I've stocked up on mounts, should last me a while, but I'm planning
> 3D printing mine when I run out of the ones I have... ??I'm more
> worried that they are going to stop making 120 film before all of
> that!
> I had a friend that used a laser cutting service to cutThe laser is working by focusing energy. They call 'em laser
> some wood into parts he needed; they used a 2D adobe
> illustrator file as a source and then charged him $25 for
> the setup; then a couple of bucks a minute for the actual
> cutting... I wonder how many mounts can be cut in 'one
> go'.
On Tue, Mar 22, 2016 at 2:45 PM, Vladimir Galkin vlagal57@yahoo.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:>>>I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.>>>I don't mount all of my slides at the moment; usually just a couple per roll, partially cause I haven't gotten to the point where every pair is worth mounting and partially cause of the time - as I said; that's what I'm leaving for retirement!V
From: "Brian Reynolds mf3d@reynolds.users.panix.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: "Vladimir Galkin vlagal57@yahoo.com [MF3D-group]" <MF3D-group@yahoogroups.com>
Sent: Monday, March 21, 2016 9:43 PM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
Vladimir Galkin vlagal57@yahoo.com [MF3D-group] wrote:
>
> They can and do; there's just the initial cost of getting the 3D
> printer, after that I'm not sure what the 'per mount' cost would be
> but it can't be very much. ??Depending on the cost of the printer
> the quality of the mounts will vary but you certainly don't need a
> very big one to do it.
I suspect that you'll find that the output from the home/hobby 3D
printers isn't consistent enough to make cheap mounts. Even at Maker
Faire (where you'd hope that the manufacturers would be showing their
best), I've seen lots of failed prints during demos.
> Wasn't there someone out there that was going to do a run of paper
> mounts at some point? Again, the initial setup is the cost, 'per
> mount' costs are pretty low.
That was me. The set up cost wound up being much higher than
originally mentioned to me ($75 vs $300), and I didn't have software
to submit a design. I now have software that should do the job, but I
have to teach myself how to use it.
> I've stocked up on mounts, should last me a while, but I'm planning
> 3D printing mine when I run out of the ones I have... ??I'm more
> worried that they are going to stop making 120 film before all of
> that!
I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.
--
Brian Reynolds | "It's just like flying a spaceship.
reynolds@panix.com | You push some buttons and see
https://www.panix.com/~reynolds/ | what happens." -- Zapp Brannigan
NAR# 54438 |
On Mar 25, 2016, at 6:19 PM, Todd Schlemmer theschlem@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:
I have to reply to this:"I suspect that you'll find that the output from the home/hobby 3Dprinters isn't consistent enough to make cheap mounts. Even at Maker
Faire...'Baloney. Consumer grade 3D printers CAN be a little fiddly, and there is definitely a learning curve to surmount when starting, but once tuned, I can print many dozens of Kg of plastic filament before I have an issue that compromises the quality of a print. Usually, some particle of schmutz finds it's way into my extruder and clogs the machine, ruining a print. Happens a couple times a year, and I print a LOT. Also, vendors aren't exhibiting at Maker Faire, hobbyists are. I should point out that in the time it takes me to carefully mount a stereo pair in a mount, I can print 2 or 3 mounts.That aside, I received a pair of Google Cardboard VR viewers today, and promptly took a look at a few of my stereo pairs on Flickr.I endorse this as a quick and dirty method of sharing stereo photography using scanned images. Of course, the resolution on my fancy-schmancy Droid is not equal to the ISO 50 slide film I used to make the (pinhole) images, but certainly acceptable for easy sharing. Also, if you were so inclined, the lenses from the Google Cardboard rig could be repurposed into a homemade stereo viewer. I bought a 2-pack, and I intend to design a 3D printed stereo viewer, using the simple lenses from one of the Cardboard viewers. As always, I will share as an open project, and I expect the usual criticisms.TS
--
.-. .-. . . . .-. . .
`-. | |-| | |- |\/|
`-' `-' ' ` `-' `-' ' `On Tue, Mar 22, 2016 at 2:45 PM, Vladimir Galkin vlagal57@yahoo.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:>>>I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.>>>I don't mount all of my slides at the moment; usually just a couple per roll, partially cause I haven't gotten to the point where every pair is worth mounting and partially cause of the time - as I said; that's what I'm leaving for retirement!V
From: "Brian Reynolds mf3d@reynolds.users.panix.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: "Vladimir Galkin vlagal57@yahoo.com [MF3D-group]" <MF3D-group@yahoogroups.com>
Sent: Monday, March 21, 2016 9:43 PM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
Vladimir Galkin vlagal57@yahoo.com [MF3D-group] wrote:
>
> They can and do; there's just the initial cost of getting the 3D
> printer, after that I'm not sure what the 'per mount' cost would be
> but it can't be very much. ??Depending on the cost of the printer
> the quality of the mounts will vary but you certainly don't need a
> very big one to do it.
I suspect that you'll find that the output from the home/hobby 3D
printers isn't consistent enough to make cheap mounts. Even at Maker
Faire (where you'd hope that the manufacturers would be showing their
best), I've seen lots of failed prints during demos.
> Wasn't there someone out there that was going to do a run of paper
> mounts at some point? Again, the initial setup is the cost, 'per
> mount' costs are pretty low.
That was me. The set up cost wound up being much higher than
originally mentioned to me ($75 vs $300), and I didn't have software
to submit a design. I now have software that should do the job, but I
have to teach myself how to use it.
> I've stocked up on mounts, should last me a while, but I'm planning
> 3D printing mine when I run out of the ones I have... ??I'm more
> worried that they are going to stop making 120 film before all of
> that!
I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.
--
Brian Reynolds | "It's just like flying a spaceship.
reynolds@panix.com | You push some buttons and see
https://www.panix.com/~reynolds/ | what happens." -- Zapp Brannigan
NAR# 54438 |
On Fri, Mar 25, 2016 at 6:47 PM, 'Geoffrey S. Waldo' gfpguy1@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:Precision required for interlocking post and hole assembly of front/back halves of film slide holders is on the order of less than 0.25 mil; indeed, consumer grade filament extrusion printers don't begin to approach this resolution. They typically work at 5 mil resolution or worse.Most slide holders are made by precision injection molding. The steel forms are precision machined to 1/10,000-inch tolerances, and include anode polishing and laser interferometry quality checks. Typical high precision injection molds start at 20-100K range. Which is why we don't have folks lined up to make 3D world medium format mounts in their garages. Check out Medium Machines.It is possible to print positives for making molds for polymer casting, but you will spend quite some time sanding and prepping the printed model prior to using it to make a mold.Of course, printing a holder for a cell phone "viewer" is quite doable as the tolerances are much more permissive.Geoff
Sent from my iPhone-----------------------------------------------------------------My personal contact information:Email: Gfpguy1@gmail.comCell: 505-204-6979Home: 505-930-5139Residential Mailing Address(please use this as the default unless otherwise advised):Geoffrey S. Waldo----------Consulting:**Protein Solubility, Folding, Engineering, & Detection**----------Work Contact Information:Geoffrey S. Waldo, PhD
Mail Stop M888
Los Alamos National Laboratory
Los Alamos, NM 87545
Tel: 505-667-8161 email: waldo@LANL.gov
Fax: 505-665-3024
Cell: 505-204-6979
Los Alamos Fluorescent Proteins Website: http://www.lanl.gov/projects/gfp/
•Superfolder, Folding Reporter, Split Proteins
•Tools for engineering protein folding, stability, and solubility
•Protein interactions, tagging, and detection
ISFI Integrated Center for Structure and Function Innovation web site:http://techcenter.mbi.ucla.edu
On Mar 25, 2016, at 6:19 PM, Todd Schlemmer theschlem@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:I have to reply to this:"I suspect that you'll find that the output from the home/hobby 3Dprinters isn't consistent enough to make cheap mounts. Even at Maker
Faire...'Baloney. Consumer grade 3D printers CAN be a little fiddly, and there is definitely a learning curve to surmount when starting, but once tuned, I can print many dozens of Kg of plastic filament before I have an issue that compromises the quality of a print. Usually, some particle of schmutz finds it's way into my extruder and clogs the machine, ruining a print. Happens a couple times a year, and I print a LOT. Also, vendors aren't exhibiting at Maker Faire, hobbyists are. I should point out that in the time it takes me to carefully mount a stereo pair in a mount, I can print 2 or 3 mounts.That aside, I received a pair of Google Cardboard VR viewers today, and promptly took a look at a few of my stereo pairs on Flickr.I endorse this as a quick and dirty method of sharing stereo photography using scanned images. Of course, the resolution on my fancy-schmancy Droid is not equal to the ISO 50 slide film I used to make the (pinhole) images, but certainly acceptable for easy sharing. Also, if you were so inclined, the lenses from the Google Cardboard rig could be repurposed into a homemade stereo viewer. I bought a 2-pack, and I intend to design a 3D printed stereo viewer, using the simple lenses from one of the Cardboard viewers. As always, I will share as an open project, and I expect the usual criticisms.TS
--
.-. .-. . . . .-. . .
`-. | |-| | |- |\/|
`-' `-' ' ` `-' `-' ' `On Tue, Mar 22, 2016 at 2:45 PM, Vladimir Galkin vlagal57@yahoo.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:>>>I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.>>>I don't mount all of my slides at the moment; usually just a couple per roll, partially cause I haven't gotten to the point where every pair is worth mounting and partially cause of the time - as I said; that's what I'm leaving for retirement!V
From: "Brian Reynolds mf3d@reynolds.users.panix.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: "Vladimir Galkin vlagal57@yahoo.com [MF3D-group]" <MF3D-group@yahoogroups.com>
Sent: Monday, March 21, 2016 9:43 PM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
Vladimir Galkin vlagal57@yahoo.com [MF3D-group] wrote:
>
> They can and do; there's just the initial cost of getting the 3D
> printer, after that I'm not sure what the 'per mount' cost would be
> but it can't be very much. ??Depending on the cost of the printer
> the quality of the mounts will vary but you certainly don't need a
> very big one to do it.
I suspect that you'll find that the output from the home/hobby 3D
printers isn't consistent enough to make cheap mounts. Even at Maker
Faire (where you'd hope that the manufacturers would be showing their
best), I've seen lots of failed prints during demos.
> Wasn't there someone out there that was going to do a run of paper
> mounts at some point? Again, the initial setup is the cost, 'per
> mount' costs are pretty low.
That was me. The set up cost wound up being much higher than
originally mentioned to me ($75 vs $300), and I didn't have software
to submit a design. I now have software that should do the job, but I
have to teach myself how to use it.
> I've stocked up on mounts, should last me a while, but I'm planning
> 3D printing mine when I run out of the ones I have... ??I'm more
> worried that they are going to stop making 120 film before all of
> that!
I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.
--
Brian Reynolds | "It's just like flying a spaceship.
reynolds@panix.com | You push some buttons and see
https://www.panix.com/~reynolds/ | what happens." -- Zapp Brannigan
NAR# 54438 |
On Mar 25, 2016, at 8:48 PM, Todd Schlemmer theschlem@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:
Geoffi appreciate your attention to detail and precision, but that is a ridiculous standard for precision if you are mounting stereo pairs by hand. If you could keep it cold, a hard cheese like Parmesan could be pressed into service, and a 3Dprinted frame will always be more stable and thus more archival than some die-cut cardboard. Once you cut apart a stereo pair, the only precision that really matters is how your well you place your two images relative to each other. I think your objection to 3Dprinted mounts is misguided. And recommending casting over additive manufacturing is ignorant of the shrinkage that occurs during casting, not to mention warping and other distortions.I admit I am not the stereo expert, but making is solidly in my wheelhouse, and you are spouting nonsense.TS
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`-' `-' ' ` `-' `-' ' `On Fri, Mar 25, 2016 at 6:47 PM, 'Geoffrey S. Waldo' gfpguy1@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:Precision required for interlocking post and hole assembly of front/back halves of film slide holders is on the order of less than 0.25 mil; indeed, consumer grade filament extrusion printers don't begin to approach this resolution. They typically work at 5 mil resolution or worse.Most slide holders are made by precision injection molding. The steel forms are precision machined to 1/10,000-inch tolerances, and include anode polishing and laser interferometry quality checks. Typical high precision injection molds start at 20-100K range. Which is why we don't have folks lined up to make 3D world medium format mounts in their garages. Check out Medium Machines.It is possible to print positives for making molds for polymer casting, but you will spend quite some time sanding and prepping the printed model prior to using it to make a mold.Of course, printing a holder for a cell phone "viewer" is quite doable as the tolerances are much more permissive.Geoff
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On Mar 25, 2016, at 6:19 PM, Todd Schlemmer theschlem@gmail.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:I have to reply to this:"I suspect that you'll find that the output from the home/hobby 3Dprinters isn't consistent enough to make cheap mounts. Even at Maker
Faire...'Baloney. Consumer grade 3D printers CAN be a little fiddly, and there is definitely a learning curve to surmount when starting, but once tuned, I can print many dozens of Kg of plastic filament before I have an issue that compromises the quality of a print. Usually, some particle of schmutz finds it's way into my extruder and clogs the machine, ruining a print. Happens a couple times a year, and I print a LOT. Also, vendors aren't exhibiting at Maker Faire, hobbyists are. I should point out that in the time it takes me to carefully mount a stereo pair in a mount, I can print 2 or 3 mounts.That aside, I received a pair of Google Cardboard VR viewers today, and promptly took a look at a few of my stereo pairs on Flickr.I endorse this as a quick and dirty method of sharing stereo photography using scanned images. Of course, the resolution on my fancy-schmancy Droid is not equal to the ISO 50 slide film I used to make the (pinhole) images, but certainly acceptable for easy sharing. Also, if you were so inclined, the lenses from the Google Cardboard rig could be repurposed into a homemade stereo viewer. I bought a 2-pack, and I intend to design a 3D printed stereo viewer, using the simple lenses from one of the Cardboard viewers. As always, I will share as an open project, and I expect the usual criticisms.TS
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`-' `-' ' ` `-' `-' ' `On Tue, Mar 22, 2016 at 2:45 PM, Vladimir Galkin vlagal57@yahoo.com [MF3D-group] <MF3D-group@yahoogroups.com> wrote:>>>I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.>>>I don't mount all of my slides at the moment; usually just a couple per roll, partially cause I haven't gotten to the point where every pair is worth mounting and partially cause of the time - as I said; that's what I'm leaving for retirement!V
From: "Brian Reynolds mf3d@reynolds.users.panix.com [MF3D-group]" <MF3D-group@yahoogroups.com>
To: "Vladimir Galkin vlagal57@yahoo.com [MF3D-group]" <MF3D-group@yahoogroups.com>
Sent: Monday, March 21, 2016 9:43 PM
Subject: Re: [MF3D-group] Re: Stereo Pairs in VR rig?
Vladimir Galkin vlagal57@yahoo.com [MF3D-group] wrote:
>
> They can and do; there's just the initial cost of getting the 3D
> printer, after that I'm not sure what the 'per mount' cost would be
> but it can't be very much. ??Depending on the cost of the printer
> the quality of the mounts will vary but you certainly don't need a
> very big one to do it.
I suspect that you'll find that the output from the home/hobby 3D
printers isn't consistent enough to make cheap mounts. Even at Maker
Faire (where you'd hope that the manufacturers would be showing their
best), I've seen lots of failed prints during demos.
> Wasn't there someone out there that was going to do a run of paper
> mounts at some point? Again, the initial setup is the cost, 'per
> mount' costs are pretty low.
That was me. The set up cost wound up being much higher than
originally mentioned to me ($75 vs $300), and I didn't have software
to submit a design. I now have software that should do the job, but I
have to teach myself how to use it.
> I've stocked up on mounts, should last me a while, but I'm planning
> 3D printing mine when I run out of the ones I have... ??I'm more
> worried that they are going to stop making 120 film before all of
> that!
I also have a bunch of mounts. I have a lot of unmounted slides, so
I'm not worried about running out of film. I'm more likely to get
sick and tired of mounting by hand.
--
Brian Reynolds | "It's just like flying a spaceship.
reynolds@panix.com | You push some buttons and see
https://www.panix.com/~reynolds/ | what happens." -- Zapp Brannigan
NAR# 54438 |
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