Bending the parts.

Test fit of the stacked up plate and Centerpiece. I really have a hard time bending the parts. I made a sheet metal brake made of wood! Checked the distances from the CAD drawing. everything seems ok. +/- 1mm-- good enough for me.

Landing gear. Bent to 25 degrees. 140mm distance from bottom to landing gear plate.

Bottom plate of the centerpiece and the arms. Now, bending this arm will require a "real" sheet metal brake. My DIY brake will break bending this parts. lol. I need to put rubber grommets to those 12mm holes so that the motor wires will be safe.

I will be using fiberglass rods instead of the 12mm aluminum rod (a bit overkill).. I think the landing gear looks good. Test assembly.. still a long way to go..

I think the landing gears is sturdy enough..

Another view of the whole assembly less the arms.. I am also experimenting with aluminum square/rectangular tubes in case the arms or whole assembly will be too heavy.  Note: the screws on the landing gear are temporary.. I don't have a shorter screw as of the moment.. Well, that's it for the day..

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Comment by Jay Galleno on September 26, 2013 at 7:56am

and it's getting closer! Congrats Reggie!

Comment by John on September 26, 2013 at 10:27am
Very nice design and construction. Are you planning on coating it with any type of electrical insulation primer? Any concern of shorting on the metal frame?

Comment by Hugues on September 26, 2013 at 12:05pm

nice looking but I would be a bit afraid of the weight, isn't it ? Do you have measured/estimated yet what will be your total AUW ?

Comment by Jay Galleno on September 26, 2013 at 6:56pm

John I think it's a aluminum frame so its not a metal frame as far as I know.

Comment by Stone1295 on September 26, 2013 at 7:07pm

It's aluminum.  He posted this in his previous blog post:

Comment by rjc_quadcopter on Tuesday           

This is a 1.5mm thick aluminum 3003. I am looking at a more affordable aluminum. thou 6061 is "aircraft grade" and maybe the best material for this, I think it is a bit overkill. In my computation, the whole frame weights aprox. 475g w/ landing gear. and 355g w/o the landing gear.  


Comment by rjc_quadcopter on September 26, 2013 at 9:35pm

@Jay... Thanks sir! Still a long way thou..

@ John.. I am still thinking of the best way to mount the electronics part without the possibility of short circuiting the line. The only thing I am certain right now is that the GPS will surely be located on top, Radio telemetry will be housed outside the centerpiece, and reciever will be installed a little bit lower (almost near the landing gear plate.

@Hugues my rough estimate is around 1.8kgs.

Comment by John on September 27, 2013 at 7:09am
Jay.. Last time I checked aluminum was a metal.
Comment by CliffN on September 27, 2013 at 6:05pm
any estimate your total cost for the frame alone? pm me.


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