Introduction: Kinograph V0.1 - DIY Film Scanner/Telecine - Machine Assembly

Picture of Kinograph V0.1 - DIY Film Scanner/Telecine - Machine Assembly

!! NOTE: Kinograph is a work in progress and is not intended for use in the field...yet. It works - but is limited by the DSLR's mechanical shutter, the need for mechanical improvements as well as software migration to a more robust platform. These and other issues are being solved by the community on the Kinograph forums. Please join us there.

This is a set of assembly instructions for the Kinograph (http://kinograph.cc), an open source film scanner for digitizing 35, 16, and 8mm film. This project is in active development and is in its very beginning stages. The v0.1 is the first released version and is considered experimental. Please visit the website for the most up-to-date information and to join the community to help improve the project.

While living and teaching in Jordan, I discovered a collection of 850 orphaned film canisters. With no financial support for their digitization and no equipment in Jordan to view the films, I decided to make a machine that could be built there with parts easily purchased online and with cameras that my students had available. The result is the Kinograph, which was made while I was a student at NYU's Interactive Telecommunications Program. More information the collection of films found in Jordan can be found here. I plan to return to Jordan with the Kinograph in 2014 to digitize the films and make them available online.

This scanner is made to work with consumer cameras such as a DSLR, micro-4/3, etc. The one requirement is that the camera you plan to use has a remote shutter cable. Here is an example. PLEASE NOTE that consumer cameras have mechanical shutters (that clicking noise you hear when you take a picture) that will wear out. If you use your camera to digitize large amounts of film, it will need repairing. As a reference, the Canon 5DmkII has a shutter life of ~300,000 shots. This means you could comfortably capture 200 minutes of film before repairing the shutter. Obviously, this is not ideal. Kinograph is an ongoing experiment and designs are in the works for a more robust camera system that does not require mechanical shutters.

Kinograph also comes with software which is discussed later in this Instructable. It too is going through constant development and the latest version can be found on Github.

The work currently being done on the project includes:

  1. Development of software application for Mac OSX, Windows, and Linux.

2. Design of separate 8mm capture machine and accompanying Kickstarter campaign.

3. Lab tests on an industrial version that uses a camera with a global shutter.

4. Building a community portal where users can share their progress and design changes.

5. Making a kit of parts and/or fully assembled Kinographs available for purchase.

If you have questions regarding this Instructable or the project in general, please contact me via email: info@kinograph.cc

Step 1: Parts List

The materials used in this build are suggestions. You could build the frame out of other materials, use different motors, etc. This build has been tested and works reliably.

Any item with a star next to it could be replaced with another part of your choice for a cheaper build. I chose to go with these parts because when I was building it, I didn't have a fully realized design yet and these 80-20 compatible pieces allowed flexibility and ease of ordering so I could get to the first build quickly and modify it from there. They're definitely overpriced and can be replaced with other parts but I have not had the time yet to try other parts. Let me know if you do!

NOTE: prices do not include tax or shipping.

TOOLS

5/32" allen wrench

Hacksaw or chop saw with metal blade

1/4-20 tap

screwdriver

acrylic cutter or bandsaw

assorted drill bits

optional: step-up bits for drilling acrylic

small level

soldering iron + solder

hook-up wire

PARTS (total cost ~ $1,075)

1" 80-20 T-Slot Aluminum -18 ft. total (3x 6ft. @ McMaster Carr = $59.37)

T-Slot bolts and nuts - 60 total (15x 4packs @ McMaster Carr = $34.50)*

3-way T-Slot corner connectors - 12 total (McMaster Carr = $118.32 )*

Adjustable leveling feet w/ 1/4-20 thread bolt - 12 total (Amazon or other = $12.12 )

Panel holders - 22 total (McMaster Carr = $108.90 )*

Sheet Acrylic - 2x 12"x12" colored (orange), 2x 12"x12" black, 1x 6"x12" colored (orange) (McMasterCarr or other = $47.10)

9x 1.5" standoffs, 10-32 thread (McMasterCarr = $11.44)

16x 10-32 bolts, 3/4" (pack of 25 @ McMasterCarr = $5.61)

Size 10 flat washers (pack of 100 @ McMasterCarr = $2.28)

2x Gear Motor (Surplus Sales = $69.90)

2x flexible shaft couplers - one side should match your motor shaft size and the other side needs to be 8mm (I got mine at RW couplings for approx. $125)

2x 8mm steel shaft (McMasterCarr = $11.56)

3mm x 3mm key stock (McMasterCarr = $13.92)

2x 9" lazy susan bearing (McMasterCarr = $13.56)

1/4-20 threaded rod, at least 16" (McMasterCarr = $ 2.62)

1/4-20 nuts (pack of 20 @ Home Depot = $1.18)

1/4-20 washers(pack of 25 @ Home Depot = $2.46)

Bearing shims (pack of 25 @ McMasterCarr = $9.48)

Assorted small screws and nuts. If you don't have any laying around, a small kit will do the trick. (Amazon = $3.77 + shipping)

1x 70mm x 90mm PCB board (New Egg = $4.75)

0.75" standoffs (Amazon = $5.26) +#8-32 0.5" screws (Amazon = $3.16)

4x 1.5" 1/4-20 bolts (Home Depot = $2.36)

Magnetic Strip (Home Depot = $3.98)

5-min epoxy (Home Depot = $5.28)

2x 90-degree 0.75" bracket (Home Depot = $1.97)

LED diffusion material (Amazon = $19.00)

LED light source (MPJA = $2.95)

2" T-slot extruded aluminum, 12" (McMasterCarr = $12.85)

2x 8-hole t-slot compatible plates (McMasterCarr = $14.60)*

1x 4-hole t-slot compatible 90-degree brace (McMasterCarr = $5.58)*

Microscope (for parts), should have a vertical adjustment (coarse + fine) and a horizontal plate for mounting additional camera plates. (Amazon = $107)

2" t-slot compatible sliding bearing (McMasterCarr = $46.16)

Hand-brake for sliding bearing (McMasterCarr = $10.17)

Roller Switch (Jameco = $1.95)

Relay Switch (Jameco = $2.75)

Arduino + USB cable (Amazon = $33.99)

Camera shutter cable - see description and link in previous step (est $50)

hookup wire (Amazon = $19)

12V power supply (buy a plug-in power supply that can run at 1-2 Amps or buy a bench power supply which I recommend having around: Jameco = $99.95)

2.2K resistor (Amazon = $1.49)

N400 Diode (Amazon = $5.30, or Sparkfun = $0.15)

TIP120 transistor (Amazon = $2.59)

Mini breadboard w/ jumper wires - optional - (Amazon = $6.49)

Alligator clip wires (Amazon = $6.78)

Adjustable Inserts (metal tabs) - (Amazon = $10.65)

Telephone cables (Amazon = $3.12)

0.75" flat brackets (Home Depot = $2.48)

Step 2: Reel Platforms

Picture of Reel Platforms

The reel platforms support the reels on a flat surface and are used to mount the motors for advancing the film. You will need to build TWO of these.

1: Cut the following pieces of 80-20 T-slot aluminum and tap each end with a 1/4-20 tap. You should tap them to a depth of about 1/2". See step 3.

8x 12" (arms - positioned horizontally)

8x 3.75" (legs - positioned vertically)

2: Slide two nuts into each 12" piece. The side you put them in will face down.

3: Connect the pieces with the 3-way connectors. NOTE: I cut the bolts that were included with the connectors to half of their length so that I didn't have to tap the aluminum more than 1/2".

4: Attach the panel holders, 2 per 12" bar. This will hold the acrylic sheet. Don't tighten them all the way so that you can adjust them when you place the acrylic in.

5: If you have access to a laser cutter, you can laser cut the acrylic for the platform with this file. If not, you will need to drill holes as labeled in the file. One way to do this is to print out the file onto paper (may have to split it between two sheets and tape them together), and tape it to the acrylic and drill where you see marks for holes. I recommend using step-up bits for drilling acrylic, or you can just go really slow on your regular drill/press.

6: Insert the acrylic. Slide the panel holders into position and tighten them underneath. Bolt it to the panel holders using the 1/4"-20 80-20 flat-head bolts. If the holes don't quite line up, bore them out as necessary.

7. Locate the four outermost holes in the middle of the acrylic. Insert a 10-32 machine screw from underneath with a 10-32 flat washer to match and slide another washer onto the bolt from the top. Screw on the 1.5" stand-offs.

8. Solder lead wires onto the terminals of your motor.

9: Mount the motor with 10-32 machine screws. It's a good idea to affix the shaft coupler to the motor shaft at this point. In the picture only the bottom half of the coupler is shown. NOTE: If you were unable to source the motor I used (see parts list), then the mounting holes in the acrylic will be different and you will need to drill them yourself. The center of the shaft will need to be aligned with the center of the large hole in the middle of the acrylic.

Step 3: Lazy Suzan Platform and Shaft Assembly

Picture of Lazy Suzan Platform and Shaft Assembly

The lazy susan platforms allow the reels to rotate smoothly while the machine is running. It is raised up from the platform by the standoffs to allow for the shaft coupler. These instructions are for both platforms built in the previous step, so you will need to do everything twice.

1: Cut out the acrylic support disc using this file. If you do not have access to a laser cutter, a round shape is not necessary, just the holes.

2: Place 10-32 washers on top of each of the four holes and hold them in place with masking tape.

3. To make the shafts, you will need two 8mm steel shafts and 3mm x 3mm key stock. The key stock is cut into 2x 2.25" lengths and welded (by a local shop) onto the steel shafts approx. 1.5" from one end. Insert the short end of the shaft into the other end of the coupler and tighten.

4. Flip the acrylic plate over so that the washers meet up with the four standoffs on the platform. Line up the lazy susan bearing with the four holes and use 10-32 screws to tighten everything down. Also tighten the screws on the bottom of the platform. NOTE: the alignment of everything will be easier if you loosen the screws on the bottom of the platform attached to the standoffs so that they can wiggle around a bit. Once you have screws going into the standoff from both sides you can start tightening.

Step 4: Gate Platform Assembly

Picture of Gate Platform Assembly

The gate platform will support the gate and rollers.

1: Cut 2x 12" and 2x 6" lengths of T-slot aluminum. This is the top of the gate platform. You will also need to cut 4x 5.25" lengths for the legs. Tap both ends of each piece with the 1/4-20 tap.

2: Attach the panel holders, 2 per long side and 1 per short side of the platform as shown (you'll see I was missing two on one side but the parts list has been updated and you should have all 6). Do not tighten all the way.

3. Attach the pieces of 80-20 using the 3-way connectors.

4. Cut the acrylic platform using this file and attach it to the platform holders and tighten everything down.

5. Cut 4x 4" lengths of the 1/4-20 threaded rod and assemble the posts in the holes as shown. There should be one 1/4-20 nut and 1/4-20 washer on the bottom side of the acrylic. On top, lay a washer, 4x 1/4-20 nuts, another 1/4-20 washer and add a bearing shim on top. The order and number of these nuts and washers can be adjusted later to align the rollers with the height of the film as it comes off of the reels.

Step 5: Gate Assembly

Picture of Gate Assembly

The gate provides illumination and a structure for guiding the film into position for photographing.

NOTE: This is the area that needs the most improvement and will be the focus of future iterations. It's a hack, I know. But it works, I promise.

1: Align and mount the LED panel onto a circuit board as shown with small machine screws and nuts to hold it in place. You will need to drill small holes for the bolts. Add a bit of hot glue to the back if you want to make it more secure.

2: On the back of the circuit board, connect the white leads (ground) and grey leads (power) as well as a piece of wire leading to each side for connecting to our Arduino circuit later.

3: Cut out the gate pieces from the 6" of acrylic leftover from the gate platform with this file. There are 3 pieces. The largest is the main gate and is attached directly to the circuit board and LED assembly. The other two are gates. The one with the larger window is for 35mm and the smaller one is for 16mm film. Currently there is not gate for 8mm.

4: Put 4x 1.5" 1/4-20 bolts through the four holes around the main gate window and tighten with nuts on the front side (Looking at the front, the window is on the right side). On the left side, put two 90-degree braces underneath the heads of the screws (see image).

5: With epoxy, glue a piece of magnetic strip on either side of the window. This will be used later to attach film guides.

6. Thread two 0.75" standoffs facing backwards through the top holes of the main gate.

7. Attach diffusion material to the back of the window of the main gate. In my case, I took the LED diffusion film out of an old monitor and cut it into small squares. I stacked 6-8 of them and taped them to the back of the gate.

8. Cut a 4.5" length of T-slot aluminum and tap one side with the 1/4-20 tap.

9. Using T-slot nuts and bolts, attach the main gate to the aluminum post. Attach the post to the gate platform.

EDGE TABS - these apply a small amount of pressure to the edges of the film so that it is straight and taught when passing through the field of view of the camera. This is also an area being improved in the next design.

When aligning the key stock and flexible insert tabs in the following steps, it's a good idea to use a short scrap of film to make sure the alignment is correct. See photos for detail.

Take the leftover key stock and cut 4 pieces approx. 1cm in length. Epoxy them to the top and bottom of a flat length of metal 3.5cm in length. I used 0.75" wide flat brackets and cut their length to fit (see photo).

Epoxy a metal tab (flexible insert) on top of the four pieces of keystock. When dry, bend the ends down to make a smooth corner at each end.

You can now mount these onto the magnetic strips on the main gate assembly. You will align them with the film later.

If you haven't already, cut the acrylic gate face plate that appears in the same file as the main gate assembly in the previous step (there are two - one for 35mm with a large window and one for 16mm with a smaller window).

Cut the cable from 4 telephone jacks (male) and epoxy them to the back-side of the face plate where they will meet the edges of the film. Use a scrap piece of film to achieve proper alignment (see photos). The back-side of the face plate will have slightly more acrylic to the right of the window than the left (see photos).

Epoxy metal tabs onto the spring arms of the telephone jacks, leaving 1/8" or so hanging off. When the epoxy has dried, bend the excess overhang down so that a smooth corner meets the film edges as it arrives at the tab (see photos).

Repeat the above steps for both 35mm and 16mm gates and tabs.

NOTE: If you've gotten this far and you're thinking "Telephone jacks? He can't be serious," just remember that this design is meant to be a solution to a worst-case scenario. It is not intended for use on highly valuable films or for preservation. The telephone jacks actually provide a perfect amount of pressure on the film edges and the tabs provide a smooth metal surface without requiring the construction of an all-metal gate.

Step 6: Rollers

Picture of Rollers

The rollers were designed in a 3D program, Rhinoceros. They were printed on a high-quality 3D printer (Object Connex500) with Vero Black plastic. You can print the rollers on any 3D printer, or turn them on a lathe.

  1. Print the roller files, found here. Print 3 of the smooth idle rollers, and one with sprockets on it.

2. Insert a flanged bearing into both the top and bottom of each roller.

3. Slide the rollers on to the posts. The sprocket roller should be placed on the post immediately to the right of the main gate assembly.

4. Add a bearing shim on top of the flanged bearing and add a hex nut to hold the roller in place. Do not tighten.

Step 7: Frame Assembly

Picture of Frame Assembly

Put the frames together and level everything, and add the camera rail.

  1. Add two T-slot nuts to the front legs of the gate platform. Do the same for the front left leg of the left platform and the front right leg of the right platform. To hold them in, insert the adjustable leveling feet.
  2. Add leveling feet to all remaining legs on the platforms

  3. Cut a 12" piece of 2" t-slot aluminum and insert 2 t-slot nuts on the top track and 4 on the lower track (see photo).

  4. Attach the 8-hole plates to the legs of the reel platforms and the gate platform as shown.

  5. Attach the 2" t-slot cross bar to the 8-hold plates.

  6. Cut a 12" piece of 2" t-slot and slide 1 t-nut slot into each track, facing up. Attach the 4-hold 90-degree brace.

  7. Attach the camera track arm (the 2" x 12" t-slot) to the 2" cross bar.

  8. Using a level, adjust the leveling feet so that everything is level.

Step 8: Camera Mount

Picture of Camera Mount

Here's where it gets really "hacky." For the camera mount, it's important to have fine adjustments so you can get as much of the film image in your camera's field of view as possible. This increases the final resolution of the movie file. In other words, the closer you get the more pixels you will capture. But when you're that close you need to make very small adjustments to your camera's position. The cheapest way I could find to have fine controls was to disassemble a microscope for the vertical positioning, and use a macro photography plate for the horizontal positioning.

Why a microscope? It has fine-tuning knobs for positioning, is made with parts that are guaranteed to be exactly vertical and horizontal, and it was cheaper than buying separate parts and making one myself.

If you go the microscope route, you will need to build a mounting plate to affix the post to the slider bearing that fits on the t-slot rail. I've posted some pictures of my solution here, which was made of two acrylic plates glued together, then mounted to the sliding bearing. Your solution may have to be different, but the following general steps are what need to happen.

  1. Disassemble the microscope so you have a post, the adjustment housing, and a horizontal plate.

2. Mount the microscope post to the slider bearing. You will have to fabricate your own and its design will depend on the microscope you got.

3. Mount a standard camera plate to the macro-adjustable camera plate.

4. Mount the two plates to the microscope's horizontal platform.

5. Slide the camera mount assembly onto the 2" t-slot rail and tighten the bearing's brake arm to hold it in place.

Step 9: Electronics

Picture of Electronics

The roller switch is activated by the ramps built into the sprocket roller. The Arduino is used to activate the relay. The relay activates the camera shutter cable when the roller switch changes states. See the last photo in this step for a diagram of all wire connections.

  1. Mount the roller switch to a piece of acrylic or wood and use a 1.25" standoff to mount the switch arm to the gate platform. NOTE: the standoff height changes depending on the gauge of film your scanning. A higher standoff is used for 16mm than 35mm - depending on how accurate your legs are on the gate platform you may have to cut or extend yours.
  2. One a breadboard or a blank prototyping Arduino shield (pictured), wire the relay. In my case, I'm using jumper wires and connecting everything with alligator clips so it can be quickly disassembled if necessary.
  3. Splice your camera's shutter cable. You will likely find 2-3 wires inside. As a test, plug in the cable and turn your camera on. Find out which two wires, when crossed, trigger the shutter. If there is a third wire, it might be for triggering the auto-focus mechanism and should not be used. I bent it backwards and wrapped it in heat-shrink tubing. The two wires you will be using should be soldered to pins so that they can be plugged easily into the relay circuit.
  4. Connect the roller switch's connections to the circuit (see the drawing for a map of all connections).
  5. Plug in your 12VDC power supply to the circuit.
  6. Connect your camera to its cable and make sure all connections to the circuit and Arduino are complete, especially the connections to common ground. To test the circuit, plug in your Arduino to your computer (for power) and hit the roller switch. If the camera takes a picture then everything is working! If not, go back and check your wiring.
  7. Using the diagram provided, make your motor circuit and hook it up to power and Arduino. You can incorporate this circuit into the relay circuit or keep it separate. Either way works. This circuit controls the motor using PWM (pulse-width-modulation). It changes the speed of the motor to meet the frames-per-second variable set in the software. In some cases, you may want to control the motor manually. While this is a feature I plan to integrate, it is not currently available. To have full manual control, hook up your motor to an adjustable power supply according to its power requirements and adjust the voltage to change the speed.

You are now ready to operate the Kinograph. Operating Instructions coming very soon (as of 2/23/2014)

Comments

how 2 (author)2014-07-10

Hi,

Awesome project! I noticed you were concerned about the shutter count on the 5d. The Magic lantern firmware has a feature called silent shooting. It essentially takes a picture from the live view keeping the shutter up the whole time. That might help extend the life of the camera beyond 200 minutes of film.

mepler (author)how 22014-07-10

Thanks for the tip. Do you have a link to the documentation on that? I'd like to see if the plane shutter is still used.

how 2 (author)mepler2014-07-10

http://wiki.magiclantern.fm/userguide

It is in the table of contents under -shoot -silent pictures.

In my own research, it seems to take stills from the video footage, meaning the highest resolution is around 1920 by 1080p. However, this software is also open source and the developers are very helpful, so you could more than likely ask them about any works in the future for that part of the program.

NachoS9 (author)how 22016-09-30

now magic-lantern suport hi res silent picture

cineguerrilha (author)2014-07-11

Hi Again, would you happen to have obj or any other 3d file for super 8 sprockets? Many thanks!!! Richardson

mepler (author)cineguerrilha2014-07-14

I'm working on those right now and will offer them as a Kickstarter reward (cheap) when the 8mm prototype is ready in a couple of months.

sde leo (author)mepler2016-03-28

I'm very much interested in Kinograph8. Where can we find more information? Thanks.

KevinJ9 (author)mepler2015-06-04

When will the Kickstarter reward be available? I'm currently working on one using a Raspberry Pi and am trying to figure out what I'll do for the sprocket. Also it might be worth it to put your 3D files on shapeways.com where people can order their own for those that don't have easy access to a 3D printer.

mepler (author)KevinJ92015-06-04

There hasn't been a kickstarter yet, but hopefully some time this year. I hope to send an update out to my mailing list (info@kinograph.cc) soon with more details. The 3D files are downloadable on the site (http://kinograph.cc) and you can easily upload that to shapeways if you'd like to get some made. Let me know if you do!

KevinJ9 (author)mepler2015-06-23

Would it be possible to post the rollers in .3dm format or similar? When I import the .obj files, they're not able to be edited to put in the Super8 sprockets.

mepler (author)KevinJ92015-06-29

I made a zip file for you with a 3dm file. It contains the final roller, the bump and sprocket parts I used to make that roller, and a blank roller for you to play with. I also included the python scripts I used to place the bumpers/sprockets on the roller. When you use it, place the blank roller at the center with its bottom on the plane. Link: kinograph.cc/files/rhino_roller_python.zip

KevinJ9 (author)mepler2015-06-04

Looking at it, I think the curve from the 16mm to the 8mm could be cut down (or removed) and then that might possibly give enough room to have the Super8 teeth on the opposite side from the 8mm and give each a lip under the other's teeth? I've no idea how to start editing the schematic in Rhino though.

KevinJ9 (author)mepler2015-06-04

Shapeways seems to be somewhat expensive at about $31-32 each. I found http://i.materialise.com/ and they can do them for a lot cheaper (around $14 for the sprocket and if you get 3 of the idle, those go to around $12). It'd be nice if somehow the Super8 sprocket could be added though.

cineguerrilha (author)mepler2014-07-14

awesome!

ynneb (author)2015-07-23

I have created a forum for this project. It will allow users to share pictures ideas and upload files etc. I have started various forums in the past, some still active with more than 30,000 members. While I dont think this project will generate this many members I thing it should help refine the project and become a great place to share ideas. Please join in http://kinograph.freeforums.org/index.php

mepler (author)ynneb2015-11-21

Thanks! To anyone looking, the official forum can be found here: http://forums.kinograph.cc/

ksinger2 (author)2015-11-19

Hey, I was just curious as to how you were able to focus the Raspberry camera at such a close distance? I am having trouble getting a clear image when the camera is so close to the film gate.

mepler (author)ksinger22015-11-21

Hi @ksinger2. This version uses a DSLR with a macro lens. For the Raspberry Pi camera, you can try a couple of different things. 1st, try this: https://www.youtube.com/watch?feature=player_embedded&v=FPv1sMk_fv4&t=42, or you can buy cameras with lenses, like this one: http://www.mpja.com/Camera-Module-5M-Pixel-for-Raspberry-Pi-C_S-Mount-Lens/productinfo/31497%20MP/?gclid=Cj0KEQiAycCyBRDss-D2yIWd_tgBEiQAL-9Rku-lYe81oS8m_FzdEIeJTJtXDA_P9IYprCvQ6ecnHmwaApIi8P8HAQ that can be adjusted in a similar way (by tightening or loosening the lens in its mount).

FredericV1 (author)2015-07-02

Why not developping for HD moving camera. you can get the luma signal for synchro (from the yellow connector). I use that with a modified projector

mepler (author)FredericV12015-07-18

Frederic,

I'd be interested in hearing more about this. If you're talking about adding a movie camera, this would require the frame rate of the video to be perfectly in-synch with the frame rate of the machine. This is difficult to do cheaply because it would involve fabrication of parts to create intermittent motion. Right now the film never stops moving, which is easier to manage. Is there a way to achieve the speed improvements of using a video camera without having to build an intermittent gate? OR - the question becomes how to build an intermittent gate that is reliable, cheap, and can be manufactured easily.

ynneb (author)mepler2015-07-23

Hi I am about to embark on a similar project. I have some ideas that you might find useful (or not).

I read your comment about limited shutter life. (300,000) How about using an HD webcam and using the computer to capture the actual screen shots. As the film passes through an optical sensor/trigger it tells the computer to take a snap shot. On my machine each frame will temporarily stop for the shot. I will be using geared down stepper motors for the reel drives. There is software that can automate the process continuously. (Actionaz)
Also its possible to use a digital movie camera to stream continuosly to the computer and the same method of screen capturing can be used. This solves the whole frame rate issue.

doombot77 (author)FredericV12015-07-08

That sure would speed things up with scanning. Tell us more Fred.

melvideoman (author)2015-07-16

will you charge your device for a video camera.

mepler (author)melvideoman2015-07-18

using a video camera would require the frame rate of the video to be perfectly in-synch with the frame rate of the machine. This is difficult to do cheaply because it would involve fabrication of parts to create intermittent motion. Right now the film never stops moving, which is easier to manage.

doombot77 (author)2015-07-16

I'm sure you meant too say,

Will you change it for a video camera ?

WarlockD (author)2015-01-30

You should make a 3d printer file of this. One part could be the back part, and the front part could have little bendy tabs. it could then fit toghether? Going to try to hack something togther trying to build this thing but going to use MDF so my design is going to be much cheaper haha.

digitap (author)2014-09-03

This is a great project! Just a few thoughts:

You might want to check out the following page for some thoughts on the lighting and capture mechanisms. I'd be interested if the LED arrays and diffuser are something that could be worked in to your design.

It also has links to "Fred's" page, who has some pretty extensive post-processing scripts developed in AVISynth. I'm not sure if these functions would be useful or complementary to the software you're using.

I'd love to see your design able to support a range of capture devices - from cheap single LED light source and smartphone/Rasp PI camera all the way up to custom LED arrays (including IR) and machine vision cameras.

Of course the first and seemingly unsolved part that your project can accomplish is a reliable and cheap transport mechanism plus open source (free) capture and control software.

cine2digits.co.uk

cineguerrilha (author)2014-07-07

This project is awesome! Btw, what do you think about using a pentax k1 (mirrorless interchangeable lens,

http://www.cnet.com/products/pentax-k-01/

) and a IR controller (

http://www.amazon.com/Wireless-Control-MagicFiber-Microfiber-Cleaning/dp/B0040RDT0M/) ? thanks!

mepler (author)cineguerrilha2014-07-08

Yes, that could work. The roller switch is just activating a relay. The relay simultaneously turns on the LED and sends a pulse to the camera cable. If you want to switch out the camera cable for an IR transmitter, the rest of the circuit is unchanged. And yes, the Pentax should work great.

reyahtbor (author)2014-06-25

If you were looking for capture devices I discovered a company called Ambarella that makes all kinds of video capture SoCs for all kinds of industries and at least one of them captures 4K video at 30fps and has both HDR and WDR tone mapping. I was thinking this might be a nice device to exploit for this project.

http://www.ambarella.com/uploads/docs/A9%20Product%20Brief%20120813-2.pdf

mepler (author)reyahtbor2014-06-27

This company looks really promising. I'll be contacting them this week. Thanks for the tip! Do you work with camera boards? My email = info@kinograph.cc

reyahtbor (author)2014-06-18

On the project page you are using a DSLR. Could a modified Raspberry Pi camera module that has already been done for macro photography be used instead?

This would reduce the cost dramatically, and allow the unit to be entirely self contained by moving the capture device (camera) pretty close to the gate.

I was thinking about this like a VCR, or other similar device. Keeping the media close to the capture device.

I assume there are technical reason why this or similar solution wasn't chosen.

mepler (author)reyahtbor2014-06-19

It is a great idea, and one that I'm working on for the 8mm version of the Kinograph at the moment. There are problems with quality, speed, and the type of sensor that the small board cameras pose, however. Firstly, the dynamic range is pretty horrible. The shutter is a rolling shutter, which means you can't move the film very fast at all, especially when it's so close to the camera because you will get a "jell-o" or smeary effect. I think it could work well for small gauge film, though, and will be sending updates from the Kinograph email when I have some result. Send me a quick email there and I'll add you to the update list: info@kinograph.cc

maheelrp (author)2014-06-07

ofey/ trossi,

What is the unit measurement of the obj files pl.

ofey (author)2014-06-04

cdn.makezine.com/make/38/Kinograph-0.1-Design-Files.zip

trossi (author)2014-04-25

I may have completely overlooked this, but are there any plans to support digitizing the sound tracks along with the frames? I have 16mm films that I would like to preserve, but would also like to eventually capture the sound. Not sure if there are any projects out there to convert the sound tracks.

This is a great project and I have been watching the progress for some time. I plan on using this setup with a Raspberry Pi and the Raspberry Pi Camera. Thank you for posting the 3D files for the rollers, I just printed the one with the sprockets and it turned out great.

mepler (author)trossi2014-04-26

The sound is digitized using a piece of software developed at the University of South Carolina called AEO-Light. More info on that here: http://imi.cas.sc.edu/mirc-software-overview/

As soon as I get a spare afternoon I'll put together a user guide that walks you through the whole process.

I've been drafting plans for an RPi version and very much look forward to seeing how it works for you. Thanks for following and good luck with your build.

-Matt

klindsey6 (author)2014-02-24

This is an awesome looking unit. I would recommend the use of the word telecine in your build description. I've been working on my own machine for years and there is a substantial community out there who would be interested. I just can't say as I've ever he heard the term Kinograph use in the community before. Awesome build though. I noticed much of the cost is in the frame. I assume you built it out of aluminum was for transporting it mostly? Of course it looks awesome.

mepler (author)klindsey62014-02-24

Yes, you're right. The frame is very expensive and truthfully does not need to be made out of extruded aluminum. My choice for that material was based on flexibility since, as I was building it, my designs kept changing. The slots in the aluminum make it easy to for adjusting the position of parts without having to drill. The cost could come down significantly by building the frame with more common hardware found at hardware stores.

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More by mepler:Kinograph v0.1 - DIY Film Scanner/Telecine - Machine AssemblyRaspTI: Convert a Vintage Computer (TI-99/4A) into a RaspPi Workstation - Part 1 - KeyboardMake Silicone Molds for your 3D printed object
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