"Yeah, sorry, lack of time, and I am away sailing for a few months.... Are you in the UK? If so, I shall be doing a workshop on moco rigs in Bristol sometime in the autumn.
Midimoco will be under construction soon, and this will hopefully have sorted…"
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Andrew AJ's Discussions
Motion control slider or rig.
Started this discussion. Last reply by Simon Tytherleigh Aug 3. 37 Replies 0 Likes
Hello guys.I know this was discussed probably few times, but I still can't figure it out. Cuz I am not a very tech guy. I need stepper motor slider or even stepper 3axis slider with a head, that I…Continue
HDMI converter for Sony Alpha 7II
Started this discussion. Last reply by Joshua Bartels Sep 14, 2016. 1 Reply 0 Likes
Hey guys. What HDMI converter card is better or you can recommend for using it with Sony Alpha 7II to get LiveView from Dragonframe? And maybe somebody can draw a raw sketch step by step how to setup…Continue
DRAGONFRAME website is down
Started this discussion. Last reply by StopmoNick May 11, 2016. 4 Replies 0 Likes
Hola, stop motioners! Its already 4 days how Dragonframe website is on offline mode. Maybe it's a waiting day by day, like frame by frame, moment to have Dragonframe 4 release?Any insights? Continue
Happy New 2016 animators
Started this discussion. Last reply by Andrew AJ Dec 28, 2015. 2 Replies 3 Likes
HappyHippieLab wish to everybody a crazy New 2016 Year. Catch your waves.…Continue
Andrew AJ's Page
Latest Activity
Adam Taylor replied to Andrew AJ's discussion Motion control slider or rig.
"Some instructions would be amazing, Simon! "
Simon Tytherleigh replied to Andrew AJ's discussion Motion control slider or rig.
"Correct. Geared NEMA 17 motors are needed, and the best ones are the high precision motors which have much less backlash in the gearboxes.
NEMA 24 motors without gearboxes would be powerful enough, but they are bigger and heavier."
juandu replied to Andrew AJ's discussion Motion control slider or rig.
"The nema 17 motors you have are not very powerful, they are rated at 23 N/cm, which means they can hold 2.3kg at 1cm from the shaft centre. At 2cm this drops to 1.15kg, and so on. Probably OK for the focus motor, but not enough for the axes. For…"
Simon Tytherleigh replied to Andrew AJ's discussion Motion control slider or rig.
"I think I like this one the best of all, as you can see in the picture that it is possible to adjust the bearings so they are tight against the rails. Carbon fibre is good, but stainless steel is also fine for the rails. Also seems very good…"
michelangelo replied to Andrew AJ's discussion Motion control slider or rig.
"maybe it is better the track has the most distant guides and the floor is more stable
https://www.amazon.com/dp/B01N56ODST/ref=pd_luc_rh_sbs_03_04_t_img_lh?_encoding=UTF8&psc=1"
Simon Tytherleigh replied to Andrew AJ's discussion Motion control slider or rig.
"Hi there.
Both the Ashanks and the ANJ sliders look pretty good. They are designed for live-action and time-lapse work, so I assume they have a stepper motor to do the incremental steps. It may be that the Kessler is not using steppers, so that is…"
michelangelo replied to Andrew AJ's discussion Motion control slider or rig.
michelangelo replied to Andrew AJ's discussion Motion control slider or rig.
"!!WOW!!
take a look at motorized slider...
http://www.ashanks.com/motorized-slider-c16315/
and
http://www.youtube.com/watch?v=V-71um_hNDg"
michelangelo replied to Andrew AJ's discussion Motion control slider or rig.
"if you use a low reduction ratio: 100: 1 or even 41: 1, etc.you will spend a lot of time trying the movement and having a perception of the final movement, it's clear that you can not get the live movement.If going from the beginning and end…"
Simon Tytherleigh replied to Andrew AJ's discussion Motion control slider or rig.
"More on drivers.... you can get Nema 23 low amperage motors, which means they can operate with the smaller…"
Simon Tytherleigh replied to Andrew AJ's discussion Motion control slider or rig.
"I like the Ashanks slider better, because the bearing are wider. They might be adjustable too. The other one, Yimidear, that I did suggest previously, looks like the bearings are not adjustable at all.
If you go for the Ashanks one, there is another…"
Simon Tytherleigh replied to Andrew AJ's discussion Motion control slider or rig.
"The Arduino Mega 2560 is ideal for motion control, and the 8825 drivers are good for 1.5A without air cooling. They can cope with 2A if you add a small fan, like a computer fan, into the box where you fit them. They are better than the 4988 drivers,…"
Simon Tytherleigh replied to Andrew AJ's discussion Motion control slider or rig.
"They look similar to the Igus sliders, but they are not ball bearing, which is what you need for a moco rig. They are also quite narrow, and a rig ideally needs a wide base - 200mm or so. Narrow bases mean the rig is more likely to wobble, because…"
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