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 My new rig for realtime and time-lapse. 
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Post My new rig for realtime and time-lapse.
Here it is.
http://youtu.be/A5HspJ0hCzo

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Sat Nov 02, 2013 1:36 pm
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Post Re: My new rig for realtime and time-lapse.
Very cool Doug! I guess we have to expect excellence when it comes to your rigs. Thats really fast! I like it. Is that curved part of the P/T head really gearteeth? Nice way to get huge reduction if you can cut the gears. I'm impressed. really creative. I think the only thing I've seen remotely like it was one of Displacement's rigs with some hand made large gears, nowhere near as big as these though, these are whoppers. I'm surprised to see what looks like chain drive for the pan. Don't you get a lot of backlash caused by play in the chain? I never would have had the balls to try that. Looks like it worked for you though. Goes like the wind too.


Sat Nov 02, 2013 2:05 pm
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Post Re: My new rig for realtime and time-lapse.
Thanks buddy. Those are chains on both the pan and tilt. The chain on the pan is a bicycle chain and the smaller one on the tilt is a roller chain from a gigantic printer that I scavenged for parts years ago. As for back lash I have those chains tensioned very tightly eliminating any play in them. I have a short test of me walking around the rig and ghosting in and out of the shot. It was done in 2 passes. I will post it soon. I just saw the pics of Displacement1's new crane. Very sexy! Funny, I moved away from the crane so I could be more portable. But his rig looks quite portable. Have to have a rethink.

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Sat Nov 02, 2013 8:16 pm
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Post Re: My new rig for realtime and time-lapse.
Hi Doug good to see you been busy . Nearly missed your post i tend to lurk in Timelapse Motion Control Systems & Dollies. Yes it is funny you going smaller me going bigger . Thats the good thing/bad thing with this little hobby of ours theirs no end to it !
You solve one problem which generally leads to a epiphany and you think god if i changed all this i would be able to do this . Think you had one of those :D . Must admit quite happy with stop motion side of my rig but when it comes to running at speed i am miles behind you . That been said its not really a requirement at mo and i think the why i can solve it by going up to Nema 23s on the track and boom axis . I can get a decent speed on the rest .
Bit busy at mo got a nice job on making some flying rigs for puppets which may lead to a multi axis model mover controlled by DF . That bits just for me basically a lazy animator ;)


Sun Nov 03, 2013 6:03 am
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Post Re: My new rig for realtime and time-lapse.
Nice one Doug. That high speed movement is wonderful. Realtime is something I wanted for my rig but all I've managed to get is a preview quality realtime for the timelapse. Great work.

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Sun Nov 03, 2013 4:26 pm
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Post Re: My new rig for realtime and time-lapse.
I'm sure you're going to have lots of fun with that!
When I first saw the video I was afraid the whole thing might jump off the rails. Then I saw it was one of yours. Obviously very well balanced.

Are you using wood for the frame as you did with the crane?


Regards

Kit


Mon Nov 04, 2013 2:22 am
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Post Re: My new rig for realtime and time-lapse.
Hey guys, thanks for the comps. She is indeed made from Russian birch plywood. I wish I could take credit for the realtime capability but the speed is easy to get when using the Mantis controller. Depending on the spacing between key frames I can get the thing moving quite quickly. I will post that other video today to show the quality of the movement.

DMAN, nice work buddy! I am jealous! Seriously if you can scrape the cash together look into a Mantis. You can even keep the BEDs while you save up for the leadshine drivers! Take some more pics for me, as I really dig gear PORN!

Update:
You guys may have noticed a change in my YouTube channel and missing videos, I changed things in preperation for starting a new website. I will be putting my system to work so it can start paying for itself. When the website is closer to completion I will post a link.

Cheers.

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Mon Nov 04, 2013 4:38 am
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Post Re: My new rig for realtime and time-lapse.
Hi Doug think we both simultaneously jealous i just cant reach those speeds specially in crane mode. Might be able to get away with it in track pan tilt mode .
I will post a video of the crane when i have time and space . It will be the final part in my rig trilogy . In the mean time have you come across this fella https://vimeo.com/77001462 Obviously got the rexroth catalog some really nice stuff their but not sure how much it all costs . Like what hes doing though.
Will keep a eye out for your website ,must do that one day but do find the general public slightly problematic :(


Mon Nov 04, 2013 10:32 am
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Post Re: My new rig for realtime and time-lapse.
Here's the new video.
http://youtu.be/orj2FUkq7NY
Cheers.

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Tue Nov 05, 2013 6:39 pm
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Post Re: My new rig for realtime and time-lapse.
Hi, Doug,
an impressive show case for your new toy complimented by that great production team. ;)

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Wed Nov 06, 2013 2:19 am
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Post Re: My new rig for realtime and time-lapse.
Thanks Mike. Yeah the team assembled were mostly ex-Yoyodine employees. They work for food. And they keep asking me to make them an overthruster ;)
Now all I have to do is figure out a way to power this thing on location. Suggestions anyone? My thinking is a couple of deep cell marine batteries but that will cost me a bit of cutter!

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Wed Nov 06, 2013 7:51 am
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Post Re: My new rig for realtime and time-lapse.
Here is the GS test I just shot yesterday. The rig works beautifully.
http://youtu.be/blGiGJgjTMc

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Thu Nov 07, 2013 1:55 pm
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Post Re: My new rig for realtime and time-lapse.
Nice greenscreen test Doug. What sort of power does your system need ? I use 18A 12v SLA batteries which are heavy and slow to recharge but I suppose the only other option would be LiPo batteries but since I've sunk money into SLA and chargers I'll stick with it for the moment. My system, like yours, is not something you'd put on your back and hike with.

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Thu Nov 07, 2013 3:04 pm
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Post Re: My new rig for realtime and time-lapse.
Hey buddy,
Yeah the rig is smaller compared to some but it is a handful. I am running a 14.6 amp 24 volt PSU right now but for my motors I could go with maybe a 6 amp 24 volt battery system. Either that or get a small gas powered genny.

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Thu Nov 07, 2013 5:44 pm
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Post Re: My new rig for realtime and time-lapse.
Doug K wrote:
Here is the GS test I just shot yesterday. The rig works beautifully.
http://youtu.be/blGiGJgjTMc

Hi Doug nice test you def louring me into the world of real time movement . Theirs a lot of fun to be had with it .
Not really camera rigs but nice doc on Robots http://www.youtube.com/watch?v=8zP7yP8hdLE#t=116. Think i am going to have a go at a arm type rig thing think its the future . The standard boom type arrangement is on the way out . Bot and Dolly are my current heroes :D http://www.youtube.com/watch?v=xWJCxxKuTOw
They drive their rig using Maya i have found a similar interface which uses Blender and a arduino http://www.eibriel.com/2012/05/06/camer ... -tutorial/ Dont think it will be able to handle the amount of axis you would need for a arm though :(
Ps This will be a very long term project basically waiting for a very small camera to turn up . This will make the engineering possible in may shed . No having to deal with such a large payload should reduce a lot of the problems . Realy like the way this camera going https://www.apertus.org/axiom


Fri Nov 08, 2013 4:14 am
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Post Re: My new rig for realtime and time-lapse.
DMAN,
I love the Bot Dolly arm and actually was designing something similar but on a smaller scale. I think it is very doable. A small prototype could be achieved with the high torque Phidgets motors. Top speed maybe slow but still realtime. With that much weight hanging out over the CG of the base you would need to have heavy rails and the carriage would need to be attached with some sort of captured bearing race like on a milling machine. But you probably already know that:) I still want to build a full size rig with boom but a small scale like this http://vimeo.com/60760177
Very cool little moco jib.

I am still working on my animation and I am now thinking up other little projects for my new toy. I have contacted my film geek friends here in Montreal to let them know that my rig is up and running and is available for there next indie film project. Still have a few other things that need building like run/stop cables for different cameras and such. Them little LEMO connectors are very expensive!

I tried the time-lapse feature within the Mantis software but it did not seem to work as well as I needed, it miss fired quite a few frames. That was suppose to be the original BG plate for my GS test but it came up short, so I shot a live action plate. Which shows how well the rig works as I had to shut it down and returned it to a zero state, then had to fire it backup to shoot the live plate and it went right back to its positions precisely. I love it when things work out!

I guess I still have to produce a DIY tutorial on how I make these things, AND OUT OF WOOD no less! Although a small scale P/T head like this one can be built using wood if I had the access to the machines I would fabricate in aluminum for sure. Just a case of what I have on hand and access to.

Next up I better shoot some time-lapse or risk being kicked off this cool forum:( Cheers Les Guys!

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Fri Nov 08, 2013 8:08 am
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Post Re: My new rig for realtime and time-lapse.
Hi Doug wouldn't worry to much about the timelapse thing you have plenty to offer on the rig front and lets face me not exactly a timelapser either . That is a nice rig a tad bigger and more substantial than mine but at least i can carry mine by myself.
Yes i think the arm is def makeable it could almost be as simple as this http://www.maplin.co.uk/robotic-arm-kit ... ace-266257 which i am sure could carry a Gopro. This is more what i had in mind http://robai.com/robots/gamma-1500/.
The biggest problem for me would be software Df wouldn't be able to do nor would Mantis i think . Its not just a matter of key framing its how the position is achieved. You may have seen videos of these things ware the entire rig is moving all over the place but the camera stay exactly the same place . This why i think they use programs like Maya their some very clever animation procedures in their which can parent one object to others and descried how they react with each other .
But as i say this is my next project and it usually takes a couple of years .Bye then that nice little camera will have sorted itself out .
Bye the way build yourself a CNC of some kind you wont regret it you could even carry on using wood :D


Fri Nov 08, 2013 8:59 am
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Post Re: My new rig for realtime and time-lapse.
Some insanely cool links D1. Hope that little camera works out for you. Will definitely be into that if I can afford. The Cylon arm looks awesome. Hope the fact that they won't say what it costs doesn't mean their claim of affordability is exaggerated. That little camera on the end of the arm would be sooo cool. Only problem I can see is it might be too easy. Would you really enjoy it as much if you didn't have to make the parts its made out of yourself?


Fri Nov 08, 2013 9:28 am
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Post Re: My new rig for realtime and time-lapse.
DISPLACEMENT 1 wrote:
Hi Doug wouldn't worry to much about the timelapse thing you have plenty to offer on the rig front and lets face me not exactly a timelapser either . That is a nice rig a tad bigger and more substantial than mine but at least i can carry mine by myself.
Yes i think the arm is def makeable it could almost be as simple as this http://www.maplin.co.uk/robotic-arm-kit ... ace-266257 which i am sure could carry a Gopro. This is more what i had in mind http://robai.com/robots/gamma-1500/.
The biggest problem for me would be software Df wouldn't be able to do nor would Mantis i think . Its not just a matter of key framing its how the position is achieved. You may have seen videos of these things ware the entire rig is moving all over the place but the camera stay exactly the same place . This why i think they use programs like Maya their some very clever animation procedures in their which can parent one object to others and descried how they react with each other .
But as i say this is my next project and it usually takes a couple of years .Bye then that nice little camera will have sorted itself out .
Bye the way build yourself a CNC of some kind you wont regret it you could even carry on using wood :D


Hi, Have you seen the specification for the Mach4, that will enable "robotic" control when released.
I was also thinking of an articuled arm with some of the motors placed on a base to reduce the weight on the arm. Motor 1 would rotate all the joints by being connected to pulley fixed to pivot point 1 shaft. Motor 2 would drive a double pulley that free wheeled on pivot shaft 1, second part of the double pulley would then drive a pulley fixed to the second pivot point of the arm...... and maybe a third.

Just received 2off 100mm square by 2000mm carbon fibre beams - they were heading for the scrap bin :D I think others had already gone that way unfortunately :(

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Fri Nov 08, 2013 11:17 am
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Post Re: My new rig for realtime and time-lapse.
Hi Mike i haven't seen the Mach 4 my slight concern is its not really geared up for stop frame . It my be a good solution for live moves though . I think the Blender interface will be more useful for me on many levels i have just been building a lot of nice atmospheric dust and particles that i am hoping to get the camera combining with .
As for arm construction this vid gives a over view http://www.youtube.com/watch?v=tkDbmWAyHYw and this is the Maplin one hacked into http://www.youtube.com/watch?v=HDy9jEGMk_k Ok not great but for £30? and perhaps the bearings etc can be improved . You out their John B thought this might be of interest to you.Think it should support the weight of a compact camera. You could mount it on your slider and perhaps drive it with your magic box.


Fri Nov 08, 2013 11:53 am
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Post Re: My new rig for realtime and time-lapse.
DISPLACEMENT 1 wrote:
Hi Mike i haven't seen the Mach 4 my slight concern is its not really geared up for stop frame . It my be a good solution for live moves though . I think the Blender interface will be more useful for me on many levels i have just been building a lot of nice atmospheric dust and particles that i am hoping to get the camera combining with .
As for arm construction this vid gives a over view http://www.youtube.com/watch?v=tkDbmWAyHYw and this is the Maplin one hacked into http://www.youtube.com/watch?v=HDy9jEGMk_k Ok not great but for £30? and perhaps the bearings etc can be improved . You out their John B thought this might be of interest to you.Think it should support the weight of a compact camera. You could mount it on your slider and perhaps drive it with your magic box.


Hi, That video is interesting and shows the set up a little more eloquently than my attempt. I managed to get a motor to "buzz" but not turn using the Blender tutorial, looked at the arduino code but it is for the quad stepper driver and I do not know how to convert the numbers for a BEG :( Look forward to your efforts with Blender.

Sorry Doug........... another topic hijacked.

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Fri Nov 08, 2013 12:33 pm
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Post Re: My new rig for realtime and time-lapse.
Hi-jack me topic eh! I'll learn ya!

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Sun Nov 10, 2013 8:01 am
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Post Re: My new rig for realtime and time-lapse.
Doug K wrote:


very cool! are you running steppers or DC? also, you mention 4 axes in the description but i only see 3 (dolly/pan/tilt)?


Thu Nov 14, 2013 8:02 pm
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Post Re: My new rig for realtime and time-lapse.
The forth axis is focus. Not sure if it actually counts as an axis:)
I am running steppers.

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Fri Nov 15, 2013 11:04 am
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Post Re: My new rig for realtime and time-lapse.
After coming back from a test trip which failed I have another Q for you Doug if you don't mind.

How much stability do you think you gain by having the wheels extend beyond the edges of the dolly as opposed to being beneath the main body ?

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Tue Nov 26, 2013 5:22 pm
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Post Re: My new rig for realtime and time-lapse.
So sorry for the extended absence,
The width of the base does lend a certain amount of stability to the rig. Not being an engineer I would think the more weight you are moving and the higher the speed the better off you will be with a wider base.
my two cents:)

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Mon Dec 09, 2013 4:15 pm
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Post Re: My new rig for realtime and time-lapse.
Hey no rush. Thanks for the advice. I got some disappointing results from a recent test run trip which could be in part down to the location of the wheels.

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Tue Dec 10, 2013 1:10 am
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