New Octo build

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Re: New Octo build

Postby Jdmagoo » Fri Oct 04, 2013 6:51 am

chschmid wrote:
Jdmagoo wrote:One thing I do know is that in the past I've had nothing but trouble with the style of bullet connectors your using, the best one to use are these, but they are expensive however I have had no problems since upgrading to them.

http://www.amainhobbies.com/product_inf ... ors-4-Male


What kind of trouble did you have with the 4mm connectors?


The spring bullet connectors were not letting all the current through to the esc (DJI crap) and caused multiple twitching of the flame wheel. After many crashes later, including replacing all the motors and ESC's it turned out to be the bullet connectors. It was a long and expensive process to determine it was the connectors and not just the solder or any other part. I ended up using the ones above and they solved all problems. Also, the product page claims they have less resistance than a deans connector or spring bullet connector.

Here is a post I raised way back when, when I was originally having troubles.

http://www.rcgroups.com/forums/showthread.php?t=1734675

I know others have used the spring connectors and have never had issues but given my past experience I won't ever use them
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Re: New Octo build

Postby ThinMan » Fri Oct 04, 2013 9:17 am

Hello

Is the PLA or ABS. How thick did you made ​​the horizontal motor plates and weighs as much of the complete plastic including ESC holder.

ThinMan
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Re: New Octo build

Postby chschmid » Fri Oct 04, 2013 11:00 am

Thanks for the hint James.
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Re: New Octo build

Postby chschmid » Fri Oct 04, 2013 11:05 am

ThinMan wrote:Hello

Is the PLA or ABS. How thick did you made ​​the horizontal motor plates and weighs as much of the complete plastic including ESC holder.

ThinMan


I am using PLA. Still experimenting with ABS, but I think my extruder is not capable to process ABS due to too low temp.
The motorplates will be cut from 1.6mm CFK, the PLA print is just proof of concept.
I think the ESC Holder is some 3grams with 20% fill plus the rubber groments and swcrews. So maybe 5gr per piece.

Cheers
Christof
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Re: New Octo build

Postby chschmid » Tue Nov 05, 2013 11:35 pm

First check if the holes match. And yes they match. Its huge compared to the hexa.

DSC05898.JPG


DSC05900.JPG


DSC05904.JPG


DSC05902.JPG


Still a Long way to go. But winternights are Long.

Cheers
Christof
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Re: New Octo build

Postby teramax » Tue Nov 05, 2013 11:47 pm

Chris, do you ever sleep?

btw. the GPS pod is sweet, and the printed leg? -parts hoever you call them :)
They must be the lightest solution i´ve seen so far.
somehow everything can fly
http://www.youtube.com/user/ter4m4x
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Re: New Octo build

Postby chschmid » Wed Nov 06, 2013 5:38 am

Hey Mäx

Hard to get sleep with that project :D

The "pyramid" was first intended to separate the GPS mass from the FC. But now I am not sure if the FC will be to close to all the wiring. Whats the average distance you monunted the FC on your octo X from the centerplates and wiring?

The leg mounts really turned out very light. Lets see if they are sturdy enough. I love Angels retract though. Lets see what it finally will be...
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Re: New Octo build

Postby teramax » Wed Nov 06, 2013 3:56 pm

Hy Chris
My FC is 3cm abouve the power distribution which is between the centerplates.
I did not use the distri from the FCP-HL plate, just made a thick solderblob over all wires.
solder-blob :lol: , i hope you know what i mean?
somehow everything can fly
http://www.youtube.com/user/ter4m4x
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Re: New Octo build and

Postby LPR » Wed Nov 06, 2013 4:28 pm

Christof

I used a big solder iron and a large blob for quadcopters. While the solder is warm I press the blob flat. I use insulation between the two blobs and twist the wires all the way up to the plobs.

On the octos because of my large center plates I have power wires solder in to a loop and wires coming off the loop for each motor and for the two batteries connections.

Larry
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Re: New Octo build

Postby chschmid » Wed Nov 06, 2013 11:42 pm

Hi Larry

Good to hear that you built a "powerring" and your octo flies so well. I chose the ring solution as well.

Cheers
Christof
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