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3-Axis Camera Slider

This is my 3D printed 3-axis motion control slider for my DSLR camera.

isaac-chasteauIsaac Chasteau
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This is an open source, 3-axis slider I designed for my DSLR Canon EOS 250D (EOS Rebel SL3). I designed it for video motion control, time-lapses and panoramic shots.

Here is a quick overview of the components and how the project works. There is an Arduino Nano as the brain controlling everything and monitoring the inputs. The three Nima 17 stepper motors are controlled by TMC2208 stepper driver boards. When combining the stepper motor’s step angle, the microstepping mode of the driver boards and the gear ratios of the pan and tilt axis you get a precision of 0.0133° and 0.0369° respectively. The slider carriage moves using a 36 tooth timing pulley with a 2GT timing belt on 2040 V-slot aluminium extrusion. This gives the slider has a positional precision of approximately 0.0225mm.

There are Hall effect sensors and magnets embedded in the pan, tilt and slider axis to allow the stepper motors to home and zero themselves. There is also a Bluetooth module for wireles

21 Tooth Herringbone Gear Flexi.stl

Standard Tesselated Geometry - 10.47 MB - 09/06/2020 at 23:18

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144 Tooth Herringbone Gear Base Mount.stl

Standard Tesselated Geometry - 10.12 MB - 09/06/2020 at 23:18

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17 Tooth Herringbone Gear Flexi.stl

Standard Tesselated Geometry - 10.12 MB - 09/06/2020 at 23:18

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64 Tooth Herringbone Gear.stl

Standard Tesselated Geometry - 7.73 MB - 09/06/2020 at 23:18

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Pan Mount.stl

Standard Tesselated Geometry - 2.52 MB - 09/06/2020 at 23:17

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Discussions

karmibrahim wrote 10/28/2020 at 05:48 • point

what is the maxium time for the time-lapse mode?

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Markus Zuercher wrote 09/16/2020 at 21:11 • point

OOps... Just saw the GitHub link...

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Markus Zuercher wrote 09/16/2020 at 21:10 • point

Awesome project. Please post electronics and software

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tom wrote 09/14/2020 at 20:36 • point

What software are you using to drive this thing?

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Isaac Chasteau wrote 09/17/2020 at 01:57 • point

The Arduino code for it is on my GitHub https://github.com/isaac879/Pan-Tilt-Mount (There are also the schematics and a few other things.)

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David S wrote 09/13/2020 at 17:28 • point

I have no idea what I'm doing, but I've wanted to try to do astrophotography and this look like a nice rig to do it.

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tom wrote 09/14/2020 at 20:35 • point

Google DIY equitorial camera mount, that's what you want.  Not this.

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Mike Szczys wrote 09/14/2020 at 21:22 • point

I'd recommend looking at a Barndoor tracker build for your first time out because they only have one motor/degree of freedom. Basically it tilts the camera at the same speed as the earth so you get those cool videos where the sky stays in the same place but the horizon moves.


Here's one I remember seeing from earlier in the summer: https://hackaday.io/project/172451-astrophotography-star-tracker

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Isaac Chasteau wrote 09/17/2020 at 02:00 • point

I'm sure this could be used for astrophotography but it wasn't designed for it and there are definitely better designs out there. I have heard the design on https://openastrotech.com/ is a good open source rig for astrophotography. 

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Ahron Wayne wrote 09/12/2020 at 03:44 • point

Awesome. The world can always, always always use more linear motion. 

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Tom Nardi wrote 09/07/2020 at 01:17 • point

Absolutely phenomenal project, makes me want to look for an excuse to build my own...

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