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WK-Devo-S-MOD Module for Devo7e

For those who attempted the Devo 7e range mod and did not succeed. You can purchase one of the upgrade module made for the Devo 8 and 12 to get your Devo 7e up and running again. With full range. :)

BangGood still carries it for < $15.

Here’s a picture of it installed. I removed the original and installed it in it’s place.

devo7e_8s_upgrade_module_installed_picture

(updated 2014-10-22):
For those who needs a visual guide on how to wire up the WK-DEVO-S-MOD Upgrade Module…
WK-DEVO-S-MOD_MODULE_Devo7e_installation_guide

Categories: Devo
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Devo 7e Swivel Antenna Mod

I just added a swivel antenna to the Devo 7e’s stock antenna tube. I cut and tapered the stock tube. Then used a coax to extend the connector, so I can mount at the new location.

The ability to adjust the position of the antenna will optimize the RF radiation pattern. Ensuring you have a good signal to your model. Combine this with the Devo 7e range mod. Or you can buy and install the Walkera Devo S upgrade module to turn the Devo 7e into a full range radio transmitter. This is the same module you would need in case you attempted the range mod and failed.

devo_7e_swivel_antenna_mod_optimized_range_sideview

devo_7e_swivel_antenna_mod_optimized_range

Categories: Devo
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AlienWii Flight Controllers Lands

Check out the AlienWii FC from Lance.

They run MultiWii and has MOSFET that can handle direct driving 8.5mm brushed motors without blowing up.

Brushed_MicroWii_AlienQuad_backside_iPhone6

Brushed_MicroWii_AlienQuad_topside

Here’s a shot with the LemonRX Satellite receiver installed. Plug and play.
Brushed_MicroWii_AlienQuad_LemonRX_Sat_installed

You can get them and the awesome Chaoli motors from Micro Motor Warehouse.

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Soma’s WarpQuad

Just gonna share photos of the acro quad I am building. Thanks to Soma for coming up with the WarpQuad. Looks the best out of all the acrobatic quads out there.

Here’s the center frames. It sandwiches the 4mm carbon fiber legs.

soma_warpquad_center_plate_ninja_stars

 

I switched out some of the hardware. Such as the aluminum washer below. And used power cables that comes attached together. For a neater run of the brushless motor wires to the center of the WarpQuad.

soma_warpquad_motor_wire_routing

 

Another change from the standard build out. I added 1.72mm washers so I can run the 22guage motor wire underneath the top plate.

 

soma_warpquad_flat_motor_wires

 

Then I modified the XT60 lipo connector so that it can be sandwiched between the frames. Filed down the connector so it can conform to the curve of the top plate.

soma_warpquad_XT60_connector_location

 

You can see where the power distribution harness will solder to and subsequently run to each of the ESC.

soma_warpquad_XT60_connector_location_topdown

Those were the early photos. These upcoming photos are where the WarpQuad build out is at now. It took forever to source red aluminum washers with the same bevel as the blue ones I had on hand. Still not perfect but very close. The aluminum TeeNut that the frame is resting on is just to temporary hold the arms in place. And make it easy to disassemble without tools. This frees up my hand to ensure the cable runs are neat and nothing is pinched.

I switch to button head screws. Red aluminum 5mm. The hex size will take the same allen wrench to be consistent with the rest of the screw head used on this quad. The four button head should be strong enough to secure the motor.

daryoon_soma_warpquad_build_motor_6mm_red_aluminum_button_head_screw

 

Here is a closer shot of the red washers and where I intend on placing the ESC. In the center of the quad instead of on the arms like the reference build out by Soma.

daryoon_soma_warpquad_build_countersunk_screw

 

A look at the cable run and how it meets up with the brushless motor. I created a stagger cut because I didn’t want to seperate the wires to fit heatshrinks. The stagger will keep the wires from shorting. As extra precaution, I applied Liquid Electrical tape to insulate. Then follow by a larger heatshrink to cover up the area. To dress up the heatshrink…I used chrome tape and nail art tape. This brings some blink down to this end of the arms.

Additionally, I hope the chrome take will help reflect some of the LED lights up to the props once I place one there.

daryoon_soma_warpquad_build_motor_wire_dressed

 

Here is a look at the stagger cut I mentioned before. Some folks have asked why I choose to use four motor wires when brushless motors only require three. The simple answer is for symmetry once it gets to the center of the frame and have to go to the left and right of the screw.

daryoon_soma_warpquad_build_motor_wire_stagger_cut2

 

The quad is ready for the ESC to be soldered on. Easy to do. However, I need to figure out how I want to route the power wires and still have room to fit the Flight Controller between the frame. There’s really no room for both. :)

daryoon_soma_warpquad_build_frame_red_aluminum_washer_sunnyskies

 

added August 13, 2014: Check out the complete rev1 build here… http://www.rcgroups.com/forums/showthread.php?t=2176239#post28508149

Categories: quadcopters
2 Comments

Hobby King HKing 10a Brushless ESC

Lovely spring weather means I am antsy to build and fly again. I am planning on using this Hobby King HKing 10a brushless ESC in a 230mm size acro quad. Not sure if it will be able to endure SunnySky 2204 2300kv with 3s lipo but I like the physical size…so I will give it a try anyways.

HobbyKing_HKing_10a_amp_brushless_esc_actual_dimensions_measurements

Anyways, the dimensions on Hobby King is incorrect (23mm x 18mm). Here are the actual values as measured with the digital caliper. The bare ESC as pictured weighs 2.59g.

It arrived with 20guage silicone wires for the main power. And 22gauge silicone wires for the motor leads.

Missing from the photo is the electrolytic capacitor (100uf 16v). I took it off so I can use a tantalum SMD capacitor with the same values. It’s much smaller physically. Hopefully it works out. :)

What I like about this ESC is the fact that it’s BLHeli compatible. Plus, it uses all N-channel MOSFET. And it was reasonably inexpensive at $5.78.

Categories: Uncategorized
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v911 Pro Brushless

Just stuck a brushless motor into the v911 pro frame.

Flights felt underpowered. I think it will need a larger pinion. I didn’t play with it too much so I can’t tell if we can get the v911 to actually fly better. Additionally, you’ll need to reinforce the main frame after cutting away the vertical struts to make room for the brushless motor.

v911_brushless_hp03

Categories: Brushless, v911
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My 1S Charging Station

Just wanted to share my new 1S LiPo charging station. I took a 1s Micro parallel charging paraboard from Hobby King and mod it to become a serial charging board. I think this paraboard would be cheaper and easier to mod. Plus, it does not have the LED that drains the first lipo cell if you don’t remove the lipo right after charging has completed.

With this mod, I can use the balance port of the charger to individually charge each cell. I can charge from 1 cell to 6 cells.

1S_serial_balance_charging_para_board_mod_hack

 

Here’s a closer look.1S_serial_balance_charging_para_board_mod_hack_closeup

Here it is, charging two 150mAh LiPo. The stick the temperature probe near the cells so the iCharger could monitor the temp and be able to shut down the charging if any cell rises to unsafe temperature.1S_serial_balance_charging_para_board_mod_temp_sensor

And here’s how you configure the board if you were to charge 3 lipo cells. You simply move the positive lead to the last cell. I like it because I can charge all the various connectors normally used with 1s LiPo.

1S_serial_balance_charging_para_board_mod

You can also charge different capacity LiPo together. But for safety, you would limit yourself to the charge rate of the lowest capacity connected lipo. Not a big deal if you have the time. Otherwise, it would be better to charge cell combination with similar capacities.

Hope that inspires you with your own mods.

Categories: Mods
5 Comments

Adapter for Nano QX FC to v929/v949/v959 Frame

For those of you installing the Blade Nano QX flight controller onto the v929/v949/v959 frame. Here’s the latest template you can print out. Overlay against a piece of clear plastic and cut out an adapter. The white rectangles are so the motor plugs on the board can have clearance.

nQX-v929_adapter2

Click on the following button to download the PDF. When printing, ensure that you’re not resizing or fitting the image to page. Just print at default scale.

See this thread for more info: Blade nQX FC board on mQX, Ladybird & X4 size quads

Categories: Uncategorized
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Sizes of Quads Compared

We’re talking mixing and matching quads parts to build “FrakenQuads” on the RCGroups thread: Blade nQX FC board on mQX & Ladybird size quads

I know there lots of newbies looking to do this, but wasn’t sure of the relative sizes when we talk about mQX size or Ladybird size. We use those terms because the Blade mQX is the first on the market in that type and size. And the Walkera Ladybird was the first on the market in that relative size.

The nQX is thrown in there because the topic of the thread is to use the nQX flight controller (FC) on top of the mQX, Ladybird style frame. Plus, the nQX has a unique frame. In that the motor distances sits somewhere between the LadyBird and Hubsan X4 (aka Traxxas QR-1), yet the prop guards give it a visual silhouette of a slightly larger bird. Which I find helps me in orientation once it’s a good distance from me.

Anyways, hope that helps. I took the mm size distance between prop center. Then converted it to a pixel value. So the 155mm mQX becomes a 155px on the screen. :)

main_comparision

Categories: Uncategorized
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