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Animatronics project

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New ( offline )
Posts: 3
Posted: 2010-04-10 02:39 
 Post subject: Animatronics project
Hi I'm new here and I'm working on a rather large animatronics project. What I'm currently working on is a large set of dragon wings controlled by 6 servos. I have 6 Hitec HS-805BB servos and I'm having trouble right now trying to figure out how to mount them to the frame. The frame will be made using 1" PVC pipe. Apparently the only servo brackets I can find will not work for the servos I have but I need these servos because they have very high torque which is needed. This project will be for Halloween and a few conventions. Any ideas?


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Posts: 2251
Posted: 2010-04-10 03:53 
 Post subject: Re: Animatronics project
You make your own brackets to mount the servos.

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Posted: 2010-04-10 13:33 
 Post subject: Re: Animatronics project
You don't mention what orientation the servos need to be in relation to the PVC pipe, but some PVC sheet glued to the pipe could give you a flat surface in which to make a cutout and drill holes for the servo.

Alan KM6VV

Blue Dragon wrote:
Hi I'm new here and I'm working on a rather large animatronics project. What I'm currently working on is a large set of dragon wings controlled by 6 servos. I have 6 Hitec HS-805BB servos and I'm having trouble right now trying to figure out how to mount them to the frame. The frame will be made using 1" PVC pipe. Apparently the only servo brackets I can find will not work for the servos I have but I need these servos because they have very high torque which is needed. This project will be for Halloween and a few conventions. Any ideas?

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Posted: 2010-04-10 15:51 
 Post subject: Re: Animatronics project
KM6VV wrote:
You don't mention what orientation the servos need to be in relation to the PVC pipe, but some PVC sheet glued to the pipe could give you a flat surface in which to make a cutout and drill holes for the servo.

Alan KM6VV


I forgot to mention that. I am planning on having the servos vertically along the x-y axis but I could mount them horizontally if I really need to. They will also need to be mounted on the end of the PVC pipe as well so it does also need to be very strong as well. I do have a dremel so I could try that.


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Posted: 2010-04-10 16:10 
 Post subject: Re: Animatronics project
A Dremel tool would come in handy. To advise more, we probably need a sketch of some kind.

You can do a lot with PVC. buy a 3" dia pipe section, and make a length wise cut, heat it up, and flatten it out. That'll give you a flat piece to make brackets from. Good PVC primer (purple) and glue will allow you to construct your brackets.

Alan KM6VV

Blue Dragon wrote:
I forgot to mention that. I am planning on having the servos vertically along the x-y axis but I could mount them horizontally if I really need to. They will also need to be mounted on the end of the PVC pipe as well so it does also need to be very strong as well. I do have a dremel so I could try that.

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Posted: 2010-04-12 10:13 
 Post subject: Re: Animatronics project
KM6VV wrote:
You can do a lot with PVC. buy a 3" dia pipe section, and make a length wise cut, heat it up, and flatten it out. That'll give you a flat piece to make brackets from. Good PVC primer (purple) and glue will allow you to construct your brackets.


I would never heat up PVC. The C is for Chloride. Stick with ABS or similar. Heat up and flatten a round section of pipe? Really? :shock: :roll:

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Posted: 2010-04-12 10:34 
 Post subject: Re: Animatronics project
Google for "Plastic Suppliers" in your area. You may be able to get a deal on some PVC scraps.

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Posted: 2010-04-12 15:29 
 Post subject: Re: Animatronics project
ABS would be better.

With care PVC can be worked as well. Don't burn it!

Alan KM6VV

Robot Dude wrote:
KM6VV wrote:
You can do a lot with PVC. buy a 3" dia pipe section, and make a length wise cut, heat it up, and flatten it out. That'll give you a flat piece to make brackets from. Good PVC primer (purple) and glue will allow you to construct your brackets.


I would never heat up PVC. The C is for Chloride. Stick with ABS or similar. Heat up and flatten a round section of pipe? Really? :shock: :roll:

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Posted: 2011-02-15 13:51 
 Post subject: Re: Animatronics project
It's a very long story but I had to put this project on hold for a while. I am now able to bring it back and continue working on it. I will post some concept drawings later tonight. Also I currently have a 7Ah sealed lead-acid battery. Since I am looking at a possibility of drawing 10A+ any suggestions on something that will be lighter and can handle such a load?


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Posts: 51
Posted: 2011-02-15 16:47 
 Post subject: Re: Animatronics project
Find a used laptop battery and crack that case open. Inside you will find Li-ion batteries with a protection circuit built in, take the protection circuit off and find a nice 3-4cell Li-ion RC charger. Attach some dean plugs to the batteries and the charger if it does not have them. all said and done you will have a cheap, light battery pack that can take 10Amps or more, just don't plan on it lasting as long as the lead acid though you can always combine multiple packs to get your needed run time. also do not forget to fuse the batteries with a 12amp or so slow blow fuse or circuit breaker.

DoCDoC


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Posts: 158
Posted: 2011-02-16 18:33 
 Post subject: Re: Animatronics project
Hrmm...
if you dont like the whole cracking-thing, or maby you like your laptop to much, there are a _lot_ of LiPo-packs in sale on EBay ....

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