Jump to content

Attention: RC-CAM.com will be closing down August 2021.

The RC-Cam.com forum was the very first online community dedicated to the advancement of wireless video cameras on radio controlled (R/C) models. This is now called "FPV" (First Person View). We are proud of the contributions that our members have made to the FPV hobby.

We've seen significant changes over the last twenty years. Initially there were a lot of eager R/C hobbyist that built their own video systems. Allowing these creative individuals to share their work was the purpose of this site. Now the FPV market is flooded with low cost systems; Sadly DiY FPV video projects are now rarely discussed.

RC-CAM.com (main site and forum) will be closing down August 2021. This is being announced now (March 2021) so that everyone has time to download any information that is important to them. After the site is shutdown the information will no longer be available here.

We appreciate every member's involvement with advancing the FPV hobby. It is indeed sad to say goodbye to all our online friends. Be safe and stay healthy.

Recommended Posts

There are a number of inexpensive DJI style Quadcopter frame kits on the market. I decided to purchase a few of the 450 size frames, check out the quality, then build the one that I liked best. So I ordered these:

HobbyKing Q450 Glass Fiber Quadcopter Frame 450mm, $11USD + shipping

HobbyKing Hobbyking SK450 Glass Fiber Quadcopter Frame, $17USD + shipping

DealExtreme HJ450 Multi Flame Wheel Flame Strong Smooth MWC Quadcopter Kit, $28USD (with free shipping)

First, let me say that the prices are so low that keeping spare parts on hand is as easy as buying an extra kit. And the low prices are competitive with DiY Quadcopters frames made from aluminum towel bars and hobby plywood. So unless you need a special size model, these low price kits are a convenient solution.

As soon as the kits arrived (about one month postal shipping time from China) I did an inspection of the parts in each box. The HJ450 had an arm with one missing brass nutsert, which is a minor nuisance. I discovered that the Q450 and HJ450 were made by different Chinese companies but had identical parts. So they both appear to be copies of the same DJI model. I'm not a DJI expert but I read these are clones of DJI's first generation 450 frames.

They all looked nice, but I decided that the SK450 was the best choice for my new build. It is similar to the other two kits but its parts are not the same; So this kit must have been copied from a different model (this Hobbyking kit seems to be exactly the same as the one sold by Tarot). The SK450 got my attention because I like the removable landing feet (which mount to the motor arm with two screws) and the fiberglass motor mount plates. The plastic parts were well made and the bag of hardware looked complete.

I finished the build this week and here's what she looks like.


Edited by Mr.RC-Cam
Added info about Tarot.
Link to post
Share on other sites

Total AUW (with battery and FPV system) is 37 ounces.

Here's the main parts list to the new model:

I pulled off the heatshrink on each ESC, soldered five wires to their tiny solder pads, and reflashed them with SimonK's ESC firmware.


The ESC reflashing task used the popular FlashTool, which is a nice way to do it:


LED strips are installed on all four motor arms. White up front, red in the rear. They are controlled by some custom software I wrote for the MWC. Details on the hack are explained here:



Link to post
Share on other sites

The FPV video Tx is a DiY 5.8GHz 10mW module. It works great in the small fields I fly at. With a Bluebeam (Skew Planar Wheel) antenna on the video Tx, and a circular polarized patch on the Rx, the video quality is awesome (MUCH better than with dipole rubber ducky antennas). This antenna combination eliminates the multi-pathing interference I normally experience and it is highly recommended on 5.8GHz FPV video systems.

But getting to the main point, the model had its maiden flight today! It is very stable (I'm running MWC V1.9 release 3) and has ample power. I get 10 minute flight times on my 3S 2600mAH Hyperion VXG3 packs. I can easily see this one becoming my favorite FPV Quad.

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...