Jag tänkte bygga en glidetrack till min kamera likt denna http://www.youtube.com/watch?v=ZM1Pb5x2 ... ure=relmfu.
Jag kan knappt något om el-teknik, förutom det man lär sig i högstadiet. Min fråga är hur kan man göra en liknande styrbar motor där man kan kontrollera dess hastighet och riktning? Vilken motor bör jag använda för en kamera som väger ca 2 - 5 kg? Jag har googlat lite men har inte lyckats hitta mycket (som jag förstår). Jag skulle uppskatta om ni kunde skicka info/länkar på delar som ni anser kan fungera.
Tackar!
Glidetrack till kamera med styrbar elmotor, hur?
- Lennart Aspenryd
- Tidigare Lasp
- Inlägg: 12607
- Blev medlem: 1 juli 2011, 19:09:09
- Ort: Helsingborg
Re: Glidetrack till kamera med styrbar elmotor, hur?
Hej och välkommen till forumet.
Varför inte utnyttja sökfunktionen.
Saken har diskuterats flera gånger här på EF.
Idag när det är så lätt att få tag på bra aluminiumvaggor är detta en vettig ide. Så sök och du skall finna.
Jag måste inflika att Lasse Svanberg TM på Filminstitutet gjort jobb åt mig och myntat uttrycket
"Fotografen är till för att hålla fast kameran, så att den inte Zoomar eller Paaanorerar!"
Hans test är och var Billigt Men Bra, kör på det säger Lasp
Använd alltså byggprylar till stativ och skenor!
http://elektronikforumet.com/forum/view ... se#p419144
Varför inte utnyttja sökfunktionen.
Saken har diskuterats flera gånger här på EF.
Idag när det är så lätt att få tag på bra aluminiumvaggor är detta en vettig ide. Så sök och du skall finna.
Jag måste inflika att Lasse Svanberg TM på Filminstitutet gjort jobb åt mig och myntat uttrycket
"Fotografen är till för att hålla fast kameran, så att den inte Zoomar eller Paaanorerar!"
Hans test är och var Billigt Men Bra, kör på det säger Lasp
Använd alltså byggprylar till stativ och skenor!
http://elektronikforumet.com/forum/view ... se#p419144
Re: Glidetrack till kamera med styrbar elmotor, hur?
Gimey här på forumet visade mig en mycket fin egenbyggd i söndags kväll. En stegmotor och drivare samt lite alu-profil och en remdrift. Vid intresse kan jag kolla om han har några foton /CAD. Han kollar nog inte in så ofta.
Re: Glidetrack till kamera med styrbar elmotor, hur?
Jag sökte lite snabbt men kunde inte riktigt hitta rätt, jag ska söka lite mer senare idag tänkte jag. Det är just motorn och styrningen av den som är problemet för mig, då jag inte als begriper mig på såna saker, men jag får leta lite här på forumet.
Vad gäller Gimey´s bygge låter det ganska intressant, har han någon video el. liknande? Det hade ju också varit intressant att få veta vart han har hittat alla grejer.
Tack för svaren!
Vad gäller Gimey´s bygge låter det ganska intressant, har han någon video el. liknande? Det hade ju också varit intressant att få veta vart han har hittat alla grejer.
Tack för svaren!
Re: Glidetrack till kamera med styrbar elmotor, hur?
Kolla den här, han bygger en "Slider Controller" med stegmotor och ett Arduino-kort.
You select the number of shots to be taken (1-999), the time to move (3-999 minutes), Interval between shots (1-999 seconds), Exposure time (1-999 seconds) and press go. The controller will drive the slider the required amount, stop, fire the camera, wait for the exposure time and then drive the slider for the next shot.
The stepper motor drive provides very precise movement of the slider. The stepper motor requires 1600 steps per revolution and I am using a ¼ in BSW drive thread (20 threads per inch). One step gives (25.4 / 20) / 1600 = 0.0008 mm movement of the slider. If I took 1000 shots at the slowest stepping speed the slider would move a total of 0.8 mm. The fastest the stepper motor can drive the slider is 4 mm per second or about 3 minutes for the full 650 mm travel.
Finns länkar och kod.
You select the number of shots to be taken (1-999), the time to move (3-999 minutes), Interval between shots (1-999 seconds), Exposure time (1-999 seconds) and press go. The controller will drive the slider the required amount, stop, fire the camera, wait for the exposure time and then drive the slider for the next shot.
The stepper motor drive provides very precise movement of the slider. The stepper motor requires 1600 steps per revolution and I am using a ¼ in BSW drive thread (20 threads per inch). One step gives (25.4 / 20) / 1600 = 0.0008 mm movement of the slider. If I took 1000 shots at the slowest stepping speed the slider would move a total of 0.8 mm. The fastest the stepper motor can drive the slider is 4 mm per second or about 3 minutes for the full 650 mm travel.
Finns länkar och kod.
Re: Glidetrack till kamera med styrbar elmotor, hur?
lite mer info:
I have load tested the motor which can lift up to 5kg vertical on the slider before it stalls.
These are the major components.
• 4N25 Opto Coupler IC, this electrically isolates the controller from the camera.jaycar.com.au/products_uploaded/ZD1926_4N25SR2-M__ZD1934_4N35SR2-M.pdf
• Arduino Demilanove 328, this is the brain of the controller. Think this controller has been replaced by the Arduino Uno.
• DFRobot Arudino Keyboard Shield, provides LCD and keyboard input.
• ProtoShield for Arduino, board to attach Opto Coupler and EasyDriver.
• EasyDriver Steper Motor Driver, this drives the stepper motor. See schmalzhaus.com/EasyDriver/
• Stepper Motor, provides the drive.
• Powered by 12V 6Ah battery Motor://jaycar.com.au/productView.asp?ID=SB2485&form=CAT2&SUBCATID=997#12
I purchased these components from the Australian web site: littlebirdelectronics.com. You can also find these components at the US site: sparkfun.com.
For full details on the micro controllers see: arduino.cc
You can also find code for motion control at: openmoco.org. I looked at this code, but ended up writing my own. See the code at gist.github.com/752692. All the controller electronics is easy to use as this is the first time I have ever built one. I am no electronics expert as you can tell from my terrible soldering job.
I have made a few improvements to the slider since filming; see photos on the attached link. These include:
• Finished the controller enclosure to protect the electronics.
• Replaced the purchased stepper drive coupling with one I made. Mine one is much more precise and stronger.
• Replaced the carriage drive nut with a bigger bronze bush for smother action.
• Added adjustable drag breaks to the carriage. This reduces any slack in the bearings and provides smoother sliding when controlling the slider by hand.
WARNING:
All of the cutting and some of the drilling footage have been sped up to make the video shorter. Don’t try to cut or drill this fast or you are likely to destroy your tools or yourself.
FILM
The weather in Sydney has been terrible the last few weeks, so I have unable to get any good quality night time lapse shots. The controller should do the job, if only the weather would co-operate. Mostly shot on my Canon 550d, with some extra shots using a Sony NEX-5. Most shots using 50mm 1:1.8 prime lens. I used a set of Tiffen Close-up Glass Lens Set for the close up shots. Canon 10-22mm for wide angle. I used my Mountain Bike Ay-Up LED headlights for lighting. Music: Welcome to Lunar Industries by Clint Mansell. Edited in FCP and no colour correction.
I have used my Light Camera Crane for a few of the construction shots see
vimeo.com/17780636 and also used the slider for a few of the close up shots vimeo.com/17725662
See photos at flickr.com/photos/53188536@N06/ This includes photos of the improvements after this film was completed.
I have load tested the motor which can lift up to 5kg vertical on the slider before it stalls.
These are the major components.
• 4N25 Opto Coupler IC, this electrically isolates the controller from the camera.jaycar.com.au/products_uploaded/ZD1926_4N25SR2-M__ZD1934_4N35SR2-M.pdf
• Arduino Demilanove 328, this is the brain of the controller. Think this controller has been replaced by the Arduino Uno.
• DFRobot Arudino Keyboard Shield, provides LCD and keyboard input.
• ProtoShield for Arduino, board to attach Opto Coupler and EasyDriver.
• EasyDriver Steper Motor Driver, this drives the stepper motor. See schmalzhaus.com/EasyDriver/
• Stepper Motor, provides the drive.
• Powered by 12V 6Ah battery Motor://jaycar.com.au/productView.asp?ID=SB2485&form=CAT2&SUBCATID=997#12
I purchased these components from the Australian web site: littlebirdelectronics.com. You can also find these components at the US site: sparkfun.com.
For full details on the micro controllers see: arduino.cc
You can also find code for motion control at: openmoco.org. I looked at this code, but ended up writing my own. See the code at gist.github.com/752692. All the controller electronics is easy to use as this is the first time I have ever built one. I am no electronics expert as you can tell from my terrible soldering job.
I have made a few improvements to the slider since filming; see photos on the attached link. These include:
• Finished the controller enclosure to protect the electronics.
• Replaced the purchased stepper drive coupling with one I made. Mine one is much more precise and stronger.
• Replaced the carriage drive nut with a bigger bronze bush for smother action.
• Added adjustable drag breaks to the carriage. This reduces any slack in the bearings and provides smoother sliding when controlling the slider by hand.
WARNING:
All of the cutting and some of the drilling footage have been sped up to make the video shorter. Don’t try to cut or drill this fast or you are likely to destroy your tools or yourself.
FILM
The weather in Sydney has been terrible the last few weeks, so I have unable to get any good quality night time lapse shots. The controller should do the job, if only the weather would co-operate. Mostly shot on my Canon 550d, with some extra shots using a Sony NEX-5. Most shots using 50mm 1:1.8 prime lens. I used a set of Tiffen Close-up Glass Lens Set for the close up shots. Canon 10-22mm for wide angle. I used my Mountain Bike Ay-Up LED headlights for lighting. Music: Welcome to Lunar Industries by Clint Mansell. Edited in FCP and no colour correction.
I have used my Light Camera Crane for a few of the construction shots see
vimeo.com/17780636 and also used the slider for a few of the close up shots vimeo.com/17725662
See photos at flickr.com/photos/53188536@N06/ This includes photos of the improvements after this film was completed.
Re: Glidetrack till kamera med styrbar elmotor, hur?
Jag har bett Gimey kika in här, så vi får se om han dyker upp. En upptagen man på det stora hela.
