Here is my Quad-Copter I've been working on. The weight is up there as just the "Arms" are 7.1oz each, so there is a total of 14.2 oz just in the arms , need to trim some weight. I have some T-rex 6oo tail booms on order. I am using some 1/8" plastic plates with nylon screws. Also fabricated some plastic motor mounts with rubber anti-vibration pads for the motor and the frame. I have read of "vibration" issues causing big problems wit the gyros. Testing flight time has been around 5 mins. (very low) because of a major weight factor. Board being used from : http://www.quadpowered.com QuadPowered Base Board Motor to motor: 25" Motor used: Turnigy SK2830-750 kv x4pcs Speed controller: Hobby King 25/30 with BEC/ x 4pcs Props : Need 2 for normal clock rotation and 2 for counter clock rotation (2) 12x3.4 Pusher (2) 12x3.4 Tractor Battery: 3 cell 4000 Lipo Total weight : 4 lbs 6.8 oz. Radio: Airtronics RDS8000 2.4 Attached files umVB/converted_files/19121=6809-pic1 (Small).jpg">
Look at all of those SWEET vacuum-molded plastic bits! It's like you have a "contact" in the biz! LOL I always enjoy seeing your projects, Al. You do some neat stuff that really calls upon your professional expertise. When you get all of the bugs worked out will you consider selling a kit with all of the custom plastic stuff?
Hey CRASH, Thanks for the pat on the back. You know the plastic forming has kinda become a hobby and learning experience . I just have axcess to equipment and some plastic to experiment with. I have not thought about that, however I will give it some consideration .Ya the weight needs to go on a diet big time lol lol.. I'm just following a lot of ideas to my liking. I could make parts that would fit several extrusion shapes then it would be up to the designer / scratch builder to carry on. I'm going to see what I can do with the Trex 600 tail booms and make some changes with the plastic plate thickness. I'd also like to see about making a "Phlat Phrame" on the MK2 out of wood / plastic to support the arms/frame. The Blue core foam may be an alternative to a isolation barrier the way the rubber acts. Well see... Thanks
looks great blindflight....be cool to cut that frame out of wood on the phlatprinter. that control board looks great also....maybe you can lighten it up with thinner gage plastic??. nice project man...randy.
Al you kept this one a secret! This looks awesome brother! Way to go. I love the ninja throwing star look of the main body. This looks like something you would buy right off the shelf of NASA Very professional Al nice job! Mark and Trish
Al that looks awesome! I've been wanting to do a tricopter like Randy's but I just have so many projects going on to get to it.
No, this was prior to the "PhlatFormer" comming out. The plastic is 3/16 material being used for the plates and 1/8 for the landing gear & battery which were done at work. However I am going to do some forming with my "PhlatFormer" very soon with the same material and use 1/16 & 1/8 for the same parts to save some weight. My quad needs to go on a diet big time @ 4lbs Thanks
blindflight, to give it the right diet you should start over from scratch. The arms could be made form 1/2" square, thin-walled tubing. That 1/4" rubber that you use between the plates and the arms I'm sure weights a lot. I have not seen anyone in the tricopter thread over at RCG using it. Balancing the motors and the props will get rid of most of the vibes.
The 1/4 " rubber was a build pre-caution as I have read of so many vibration isssue's. I already have some thinner 1/16" material I will be using instead. The aluminum extrusion I used was 1/16 " wall 1/2 height and 1" wide which was 7+ ounces x 2. On-ward and Up-ward..... Thanks
blindflight, i would not be to concerned about the weight.....those motors you got are like mine, and ther 240watts per motor. mine lifts a 13oz camera like nothin...plus ya got 4 motors instead of 3....also they work better on 4 cells. randy.
blindflight, you gave me some inspiration to build some new aluminum motor arms....with kydex mounts. that's a very fine idea for mounting. thanks, randy.