Show Us Your Scratchbuilt Multirotors - Page 7 - RC Groups
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Sep 08, 2012, 09:42 AM
Lift is where you find it.
Quote:
Originally Posted by prodriverex
Here's my humble built using scratch Al rod..


Too heavy to fly nevertheless..

rated 600gm thrust motor each and 4S 3450mAh pack..

Back to drawing board now with version 2 using CF.. yah no longer using scratch CF.. brand new..
Slow flyer props would probably help too- something like a 10x4.7, depending on the KV of your motors. The props you have on there look to be pretty steep on the pitch.

Nobody said it, but it's a cool looking rig
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Sep 08, 2012, 10:49 AM
making crashing a lifestyle!
dutchcommando's Avatar
Quote:
Originally Posted by prodriverex
Here's my humble built using scratch Al rod..


Too heavy to fly nevertheless..

rated 600gm thrust motor each and 4S 3450mAh pack..

Back to drawing board now with version 2 using CF.. yah no longer using scratch CF.. brand new..
looks killer!
but those props look like they will kill your motors.. get some slowfyer props with a max pitch of 5 and she will be flying soon!
Sep 08, 2012, 11:09 AM
The Engineer
prodriverex's Avatar
Quote:
Originally Posted by 2400RDR
Slow flyer props would probably help too- something like a 10x4.7, depending on the KV of your motors. The props you have on there look to be pretty steep on the pitch.

Nobody said it, but it's a cool looking rig
Thanks dude! Yea you are right, i was amateur 6 mths ago with the spares. Got those aggressive pitch without knowledge..
Motors are 960Kv.
Sep 08, 2012, 11:09 AM
The Engineer
prodriverex's Avatar
Quote:
Originally Posted by dutchcommando
looks killer!
but those props look like they will kill your motors.. get some slowfyer props with a max pitch of 5 and she will be flying soon!
Really? Ok will do it this week if time permits..!
Sep 08, 2012, 01:32 PM
Registered User
Videonet's Avatar
Quote:
Originally Posted by Nick_P
Here are a couple of mine.



Very funny the last picture, very portable for to see the news walking
Sep 08, 2012, 06:24 PM
Registered User
Here my latest build. It's 330 size with some led's at the front as anywhere past 50m currently is a 50/50 gamble on whether I'll stay airborne or not. Alu arms with black heat shrink around them to make the whole thing look uniform / to intergate the led's nicely. Shame I've got 5 days of 12 hour shifts ahead as I'm dying to take it out for a spin









Sep 09, 2012, 01:21 AM
The Engineer
prodriverex's Avatar
Idea came with these spare rods lying around..


Started with using foam board and cross-joint..


Ok, this is weird..


The lander:

I got this idea after seeing those commercial quad with that curvy legs like spider design.. But i can't find a suitable spring to dampen the movement..

So after much pondering, these shocks came to mind:



The black foam board was ditched to make way for dual layers of Al plate for a very stiff structure. The third piece on top holds the electronics and it is dampen using special vibration dampening mount bought from farnell.


The custom built battery holder will go under the belly..



Bot some black foam tape to cushion the pack for whatever reason I do not have as to why i need to cushion them.. haha


Oh oh.. the the battery tray is too wide.. didnt measure this portion.. just eyeball guessing


Alright, we flip it this way..


That's better
Sep 09, 2012, 01:25 AM
The Engineer
prodriverex's Avatar
Quote:
Originally Posted by 2400RDR
Slow flyer props would probably help too- something like a 10x4.7, depending on the KV of your motors. The props you have on there look to be pretty steep on the pitch.

Nobody said it, but it's a cool looking rig
This is the motor I used. Trying to get a cheap and good one.. this cost around $17. So is the board.. Still kind of ex overall..


After some static run and one outdoor run.. the shaft is screwed. Have to change 3 of them. Lousy. Or probably like what dutchcommando said, the prop probably harmed my motor..
Sep 09, 2012, 03:47 PM
Registered User
triple_b's Avatar

Hexacopter


Details on my scratchbuilt hexacopter that I completed about a month ago.

Frame: 0.063" Garolite-G10/FR4 cut on Phlatprinter3
Booms: 16mm OD aluminum
Boom Blocks: quadframe.us 16mm boom blocks
Flight Control: ArduPilotMega 2.0 Board & Case
Software: Arducopter 2.7.1
External GPS: uBlox LEA-6
Sonar: MB1200 XL-MaxSonar-EZ0 Ultrasonic Range Finder
APM Telemetry: 3DR Radio Telemetry Kit - 433 MHz
Motors: 6x Tiger MT-2216 900kV
ESC: 6x eRC "Rapid Drive" 25A Brushless ESC
Battery: 3s-5000mAh
TX: Flysky 9x w/ ER9X firmware with Frsky DJT Module & FLD-02
RX: Frsky D4R-II RX using CPPM

Weight with battery, no camera = approx 1.7 kg

RAM Hexacopter Mark 1 Flight Video (2 min 32 sec)


Hexacopter Test Flights (Using Arducopter 2.7.1) (8 min 11 sec)
Sep 10, 2012, 10:38 AM
Registered User
Could probably easily lift that weight with 4 motors at that weight? Nice frame.

Frame: 0.063" Garolite-G10/FR4 cut on Phlatprinter3
Booms: 16mm OD aluminum
Boom Blocks: quadframe.us 16mm boom blocks
Flight Control: ArduPilotMega 2.0 Board & Case
Software: Arducopter 2.7.1
External GPS: uBlox LEA-6
Sonar: MB1200 XL-MaxSonar-EZ0 Ultrasonic Range Finder
APM Telemetry: 3DR Radio Telemetry Kit - 433 MHz
Motors: 6x Tiger MT-2216 900kV
ESC: 6x eRC "Rapid Drive" 25A Brushless ESC
Battery: 3s-5000mAh
TX: Flysky 9x w/ ER9X firmware with Frsky DJT Module & FLD-02
RX: Frsky D4R-II RX using CPPM

Weight with battery, no camera = approx 1.7 kg

RAM Hexacopter Mark 1 Flight Video (2 min 32 sec)


Hexacopter Test Flights (Using Arducopter 2.7.1) (8 min 11 sec)
[/QUOTE]
Sep 10, 2012, 10:39 PM
Registered User
triple_b's Avatar
Thanks. Six motors might be a little overkill but I wanted to have some headroom for FPV gear or a gimbal. That and I just wanted to build a hexa so this is what I came up with. Buying six motors and esc's was kind of painful though. My next build will probably be a quad.

Quote:
Originally Posted by FlyingRodent
Could probably easily lift that weight with 4 motors at that weight? Nice frame.
Sep 12, 2012, 07:27 PM
Registered User
Wooden tricopter







Foam quadcopter


Sep 12, 2012, 08:46 PM
making crashing a lifestyle!
dutchcommando's Avatar
foam? how does it fly?
like the concept
Sep 12, 2012, 09:26 PM
Registered User
rock solid frame, the most stable quad iv flown
600mm motor to motor
40-08 motors
20A esc 12 X4.5 props
multiwii FC
Sep 12, 2012, 09:27 PM
Registered User
It fly's quite well. Less stable than my Tri but easy enough to control.

Once I have more time on it I think I will install some aggressive firmware to see if it will flip.


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