tag:blogger.com,1999:blog-380351806923823498.post116400916278408250..comments2014-02-22T04:38:25.788-08:00Comments on GigaPi: Jack Stockerhttp://www.blogger.com/profile/14810259962903126669noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-380351806923823498.post-51495831304996831312014-02-22T04:38:25.788-08:002014-02-22T04:38:25.788-08:00Can you give the dimensions of the MDF frame
With ...Can you give the dimensions of the MDF frame<br />With a schema ?<br />Thank<br /><br />Pouvez-vous donner les dimensions du cadre MDF<br />Avec un schéma ?<br />Merci.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-87232509661055175412013-08-08T07:59:10.581-07:002013-08-08T07:59:10.581-07:00Here is a link to the wheel and the worm gear that...Here is a link to the wheel and the worm gear that we used at the bottom:<br /><br />http://www.technobotsonline.com/standard-mod-1-worm-gear-<br />with-reducer.html<br /><br />http://www.technobotsonline.com/mod-1-40t-plastic-gear-brass-hub.html<br /><br />And yes, if you look at the code I made, in the settings.cpp file you will find this: <br />'double( 1 / double( double( 40 * 2048 ) / 360 ) )'<br /><br />Where 40 is the number of teeth in the wheel and 2048 is the number of steps for a full revolution.Jack Stockerhttps://www.blogger.com/profile/14810259962903126669noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-68684076946520716292013-08-05T21:49:57.968-07:002013-08-05T21:49:57.968-07:00What size 40 tooth gear did you use? Another lego...What size 40 tooth gear did you use? Another lego gear? And what size worm gears? <br /><br />I would guess that if I use different sizes, I'd need to fine tune the 'amount to turn the camera' variables. Anonymoushttps://www.blogger.com/profile/12863216561305265116noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-44081318055696852572013-05-25T23:40:18.010-07:002013-05-25T23:40:18.010-07:00If you have issues with colors, you may also be wi...If you have issues with colors, you may also be willing to have a look at this :<br />http://www.color-management-guide.com/Anonymoushttps://www.blogger.com/profile/04174528413027465107noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-79745794232880575162013-05-25T11:39:19.438-07:002013-05-25T11:39:19.438-07:00No problem, you saved us a lot of time!
Perfect fo...No problem, you saved us a lot of time!<br />Perfect for the job.Jack Stockerhttps://www.blogger.com/profile/14810259962903126669noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-16278032938673022062013-05-25T05:37:55.599-07:002013-05-25T05:37:55.599-07:00Thank you for the link to my calculator.
I hope yo...Thank you for the link to my calculator.<br />I hope you will enjoy it.Anonymoushttps://www.blogger.com/profile/04174528413027465107noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-47705895468509132272013-05-13T00:22:17.736-07:002013-05-13T00:22:17.736-07:00Sure; http://www.ebay.co.uk/itm/Power-master-laser...Sure; http://www.ebay.co.uk/itm/Power-master-laser-level-tool-kit-with-case-/400483917118?pt=UK_BOI_Industrial_Tools_Construction_Tools_ET&hash=item5d3eb39d3e<br /><br />But there are loads of them about on ebay, with varying prices.Jack Stockerhttps://www.blogger.com/profile/14810259962903126669noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-79044279405204011742013-05-13T00:18:41.348-07:002013-05-13T00:18:41.348-07:00Haven't given it much thought, but they would ...Haven't given it much thought, but they would make for very interesting pictures!Jack Stockerhttps://www.blogger.com/profile/14810259962903126669noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-25798437147847217672013-05-11T15:47:06.198-07:002013-05-11T15:47:06.198-07:00Can you supply the link to the "cheap laser l...Can you supply the link to the "cheap laser level kit brought off the internet"?Davehttps://www.blogger.com/profile/01202457666219954498noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-65717261008239186742013-05-09T10:01:07.001-07:002013-05-09T10:01:07.001-07:00Have you thought about using this for astrophotogr...Have you thought about using this for astrophotography?JPhttps://www.blogger.com/profile/01053110728448216991noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-18352554358125721022013-05-09T03:04:38.709-07:002013-05-09T03:04:38.709-07:00As long as it has a standard mount hole on the bot...As long as it has a standard mount hole on the bottom, you can create an adapter (which we had to do for the smaller of our two cameras), so theoretically it can fit any camera, as long as the motors can handle the weight.<br /><br />The shutter & focus control circuit would connect to a remote control (hopefully you can get one for your camera), which, given a bit of tinkering with the remote, should work perfectly.<br /><br />You can get circuit diagrams and examples of how to use a relay & transistor as a switch, via the Pi, on google.Jack Stockerhttps://www.blogger.com/profile/14810259962903126669noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-5646693944182552652013-05-09T02:59:16.930-07:002013-05-09T02:59:16.930-07:00To control the camera, we are using a modified rem...To control the camera, we are using a modified remote control, which has the ability to focus and use the shutter. The two cameras we use have different remote, so we had to make a circuit that can handle both types of remote.<br />The remote wires were then plugged into the circuit seen above (on the breadboard) which controls the remote using a relay switch and a transistor. This is then connected to a GPIO port on the Pi and controlled directly by the program. The replay is turned on, and the waits for a period of time (depending on settings), then turns off, which simulates a shutter press.<br /><br />The calculations for the actual picture size, how many images in each row/each column etc. were found using the link at the bottom of the page, which contains an excel spreadsheet with these calculations.<br /><br />We can only change the shutter speed before taking the entire image, which is normally set to 750 milliseconds. To see it in action, you could download Qt and the code from github (link at bottom).<br /><br />The system focueses the camera, for a user specified period of time, <br />Turns on the shutter for a user specified period of time,<br />Waits twice the shutter period in order to save the image to the SD card,<br />Moves the camera,<br />Waits for the mount to stop moving, and repeat<br />Which, depending on the settings, normally takes around 4-5 seconds per image. But it does also have to wait for the camera to move all the way back to the left after one row!Jack Stockerhttps://www.blogger.com/profile/14810259962903126669noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-540772728319786322013-05-09T02:45:42.744-07:002013-05-09T02:45:42.744-07:00Can this work for my Olympus EPM1? How would I kno...Can this work for my Olympus EPM1? How would I know to make the shutter/ focus control? I'd really like to build this and credit you. AKA AWOLhttps://www.blogger.com/profile/12247288559885084225noreply@blogger.comtag:blogger.com,1999:blog-380351806923823498.post-4422372114143943072013-05-08T08:19:50.218-07:002013-05-08T08:19:50.218-07:00Not discussed here is how the camera is being cont...Not discussed here is how the camera is being controlled. Are you using gphoto2?<br /><br />Are you using that for calculating the lens width, degrees? <br /><br />Have you found a way to control the shutter speed in spite of the changing light on a cloudy day?<br /><br />How fast does your system take images? A 10 frame shot takes 10 minutes or...?Kevin Fordhttps://www.blogger.com/profile/07207776430641143744noreply@blogger.com