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I love DIY moco! You're not wasting time, you're doing something useful and having fun in the process. That's how I justify my "experiments" in this area.
Are you using Mantis for control?
You need to get this material over to Doug Kropla for showcasing on his Facebook DIY Moco page...
https://www.facebook.com/pg/motionco...=page_internalJim Arthurs
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Mantis is the go-to for turnkey indy professional moco... seen in action here...
https://www.youtube.com/watch?v=sDzrfNepMTA
It's basically a high frequency 8 channel CNC controller board, built out in a box with good I/O options, with a full custom motion control software written to run light on older laptops if needed. It will work with your steppers and existing drivers and make move programming fun. Or more fun. Or at least "fun-ish".
Here's the site...
https://www.bfg-motion.com/index.php?p=1_4Jim Arthurs
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The 'modularity' is that one axis can be removed from the rig and set on a bench/tripod.. this will allow 'up and over' mixed with a product rotation.
Not really a filming application but will allow basically a 3d set of photos to be taken of a product from many many angles.. a web shop tool if you get me as the user should be able to mouse over a product and spin it in 3 axes.. maybe its called photogrametry or something
I need to hook up with some digital people and see what they can make of the raw footage
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Originally posted by morgan_moore View Post
Originally posted by Jim Arthurs View PostI love DIY moco! You're not wasting time, you're doing something useful and having fun in the process. That's how I justify my "experiments" in this area.
Are you using Mantis for control?
You need to get this material over to Doug Kropla for showcasing on his Facebook DIY Moco page...
https://www.facebook.com/pg/motionco...=page_internalFlorida Based Photographer & Cinematographer
http://www.austinburke.photography/
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The latest, still unreleased promo vid is here with some BTS. I release the video when I get the 3d render of the shoe back.
https://vimeo.com/340989485/8cb80facd1
I have nema 23 on slide and tilt
Pan is nema 17 in three formats.. straight, geared down and epicyclic.
I do have some issuses with backlash that was not properly adressed at the design stages
Bigger drive belts have more backlash.
Doing an oral B product shoot at the moment.. its OK but Im over budget time wise.
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Originally posted by ReelFilmGeek View PostI've heard of mantis but also heard of people using dragon frame lately. I really need to dig into the differences but it's hard to find out details on them both it seems in a comparison.
Here is a little demo of my first nodal pan/tilt/roll head from a few years ago, in which I gleefully lifted design elements from Doug's work. I'm using Dragonframe to run it, and doing a live preview "cheat" to make it look like it can slew all three axes simultaneously (well, it can, but only in one specific case which I'm exploiting)...
http://files.datausa.com/imageshoppe...LT_HEAD_06.mp4
That design suffered from backlash due to the geared steppers, so I next went with some wonderful Harmonic drives I found on ebay and tried something with more camera and lens versatility in aluminum...
http://files.datausa.com/imageshoppe...CO_head_01.mp4
I'm still improving that rig, which is a stop motion only rig, and currently exploring a much more compact pan/tilt/roll design that is designed as small as possible around specific lenses camera configs...
As Morgan can attest, DIY moco is so much fun!
Regards,Jim Arthurs
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So speaking of moco, the great grandfather of moco systems, the original Dystraflex from Star Wars has been refurbished and made its debut at the Academy of Motion Pictures Arts and Sciences Thursday night at this event...
http://www.wearemoviegeeks.com/2019/06/266867/
That amazing Millennium Falcon model you see in the pictures is NOT the ILM original, but an exact replica built by a friend of mine, Sean Sides. I was lucky to be one of the first two fortunate folks to see it completed, and I recorded the evening as Sean does a walk-through of the construction process for us...
https://youtu.be/GpzW3t2wzXM
Since this is DVXUser, camera tech notes... I shot it with the GH5s on the Ronin-s with a Sigma 10-20mm f3.5, HLG at 2500ISO. It was one long brutal 28min take and a bunch of b-roll shot after my arm stopped shaking.Jim Arthurs
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Originally posted by Jim Arthurs View PostHopefully Doug Kropla will chime in here, as he's built a score of fun, resourceful and innovative DIY moco rigs, and has a Mantis system as well as Dragonframe experience. I can tell you that Dragonframe is more stop motion focused, and Mantis is first and foremost live action focused, both with a large overlap in useful scenarios. Dragonframe is move and shoot only, unless you buy their "higher end" interface box, while Mantis can do live action, go motion and stop motion moco.
And yeah I heard there was a way to cheat out motion with dragonframe but haven't dug deep into that yet since I only have one stepper motor to work with. I have a second one on the way along with some other goodies to build a box containing my drivers, power supply, and arduino to help keep things clean rather than a bunch of wires on a board out in the open haha.Florida Based Photographer & Cinematographer
http://www.austinburke.photography/
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