Cetanu hunter
New Member
hi can someone please help me understand this video so i can recreate this i need to know exactly what to buy and how to make it function ive never done anything like this so things are not that clear to me.
predator shoulder cannon explain ?
- Thread starter Cetanu hunter
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ksj
Well-Known Member
Ah, the mpu6050. I could not get that unit to work properly. I am waiting on a code piece and some information to resolve some of the control issues it has. There are some chronic design issues with the mpu6050 and the active code developer has retired from that project to focus on other things. The library and circuit has some underlaying issues.
The bno055 is better. I have been working on getting a better board with more response but have been having issues getting there.
The adafruit metro m4 boards are a better option with circuit python but I have to do some serious code revisions to port things over.
The bno055 is better. I have been working on getting a better board with more response but have been having issues getting there.
The adafruit metro m4 boards are a better option with circuit python but I have to do some serious code revisions to port things over.
Cetanu hunter
New Member
ksj
Well-Known Member
adafruit.com sells most all of the electronics for your needs. Other parts vendors I have used:
servocity.com
robotshop.com
Newark.com
mouser.com
alliedelec.com
wish.com/aliexpress.com have had mixed results as the Chinese have quality issues in their manufacturing processes.
The mpu6050 is not something I would recommend due to the lack of support and development on the build but the walk through is here:
Here is the walkthrough on the BNO055:
Please note that I am working with the manufacturer directly on some issues with an xlr8 board that I have. I think I might have a defective board at this point.
If you are looking for a simple light control setup using two buttons:
Due to noise present from the DC systems and tight spaces you have to use a debouncer which basically has sanity checks to make sure it does not read a false signal as actual input.
I am still muxing around with the metro m4 board and have hit a bit of a hard stop as I need a newer Linux OS as playing with dependency hell of missing updates from the main distribution can really screw up a working operating system if one is not careful.
This is what I am running right now:
The only gripe I have is that I am actually overheating the 16mhz processor with the load I am putting on it calculations wise. The latest code revision is a literal snap and go type deal. I am in a holding pattern on things until I can resolve the processing power issues as I need to add about 4 more servos to get a more accurate setup for what I am trying to do. The build is close to movie size aspects to a greater extent but I will have to wrap up other pieces before I can do a metal wrap around on the housings to get a more movie accurate look. But more importantly I need to lower the pack weight down from 60 pounds, granted the movie suit weighed 200 pounds. The movie head alone weighed about 10-20 pounds with all the metal and servos stuffed in it for facial movements.
servocity.com
robotshop.com
Newark.com
mouser.com
alliedelec.com
wish.com/aliexpress.com have had mixed results as the Chinese have quality issues in their manufacturing processes.
The mpu6050 is not something I would recommend due to the lack of support and development on the build but the walk through is here:
https://www.predatorium.com/forums/threads/bare-bones-head-tracking-shoulder-cannon-circuitry.23425/
Please note this setup is literally bare bones, anything more than the servos and it breaks.Here is the walkthrough on the BNO055:
Please note that I am working with the manufacturer directly on some issues with an xlr8 board that I have. I think I might have a defective board at this point.
If you are looking for a simple light control setup using two buttons:
Due to noise present from the DC systems and tight spaces you have to use a debouncer which basically has sanity checks to make sure it does not read a false signal as actual input.
I am still muxing around with the metro m4 board and have hit a bit of a hard stop as I need a newer Linux OS as playing with dependency hell of missing updates from the main distribution can really screw up a working operating system if one is not careful.
This is what I am running right now:
The only gripe I have is that I am actually overheating the 16mhz processor with the load I am putting on it calculations wise. The latest code revision is a literal snap and go type deal. I am in a holding pattern on things until I can resolve the processing power issues as I need to add about 4 more servos to get a more accurate setup for what I am trying to do. The build is close to movie size aspects to a greater extent but I will have to wrap up other pieces before I can do a metal wrap around on the housings to get a more movie accurate look. But more importantly I need to lower the pack weight down from 60 pounds, granted the movie suit weighed 200 pounds. The movie head alone weighed about 10-20 pounds with all the metal and servos stuffed in it for facial movements.
Cetanu hunter
New Member
ksj
Well-Known Member
I am midstream on build upgrades for performance is my bigger problem. The current setup has a substantial delay in response from inputs. The current setup is cool, but heavy. I am also looking at either switching to a vacuum formed shell or a redone piece. Time and money are my bigger enemies as life gets in the way of my builds. Once I get things to a better finality I will post updates on the builds with all the parts. I am also trying to get the code pieces updated to be more modular so it is easier to comment out specific sections.
I am still struggling to get things working reliably. As it stands I am literally overheating the arduino due to over working the unit. I am also looking at redoing the battery supply setup with Dewalt batteries but really have to redo the left housing for the power distribution.
It is not fair or acceptable to assist on a setup that will be buggy and prone to issues in the field. I will assist once I am more comfortable with a setup that has more rock solid reliability.
I am still struggling to get things working reliably. As it stands I am literally overheating the arduino due to over working the unit. I am also looking at redoing the battery supply setup with Dewalt batteries but really have to redo the left housing for the power distribution.
It is not fair or acceptable to assist on a setup that will be buggy and prone to issues in the field. I will assist once I am more comfortable with a setup that has more rock solid reliability.
Cetanu hunter
New Member
Cetanu hunter
New Member
ksj
Well-Known Member
I tend to build overkill in to my builds so that they are much more abuse tolerant. Most of the servos I use are hitec 645mg servos. The strongest analog servo in a standard size you can get. The one large servo I use is a 785hb servo. I was looking at having to switch to digital servos to downsize gearing so I can do a proper wrap around on the arms. I would recommend building in place holders in your cannon that can hold a servo to make movement mechanics more easily hidden.
ksj
Well-Known Member
Just follow my main threads. I eagerly post any major updates. At this point the only update I am working on is switching to using dewalt batteries with lanmu adapters that provide 5v/12v output. The 6.0AH batteries last for days in limited testing that I have done.
