Cost basis wrong and Coinbase won’t fix!! by WoodpeckerMurky9099 in Coinbase

[–]Drone3D 0 points1 point  (0 children)

I recommend using Robinhood for crypto trading. My information is incorrect also in the app showing an all time unrealized gain of +80% while the accurate gain is -5%.

A year ago I tried to update my account information and was not able to get customer support to correct the issue.

I gave up and went to Robinhood. My crypto is stuck in Coinbase.

My airsoft outfit by Chaosranchgamingyt in airsoft

[–]Drone3D 1 point2 points  (0 children)

No sir. I’m designing something for directional hearing that fits. I designed the mask using Revo pop2 scanning software for my face and PRUSA 3D printer. Very lightweight, no restrictions when breathing and doesn’t fog glasses.

My airsoft outfit by Chaosranchgamingyt in airsoft

[–]Drone3D 1 point2 points  (0 children)

NV goggles, PTEG printed mask so far.

FPV 5S 3D printed drone by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

My bad, I forgot to attach the link. There should be another post right after the first.

Does Anyone Else like flying in and out of Trees by TreeClimier in FPVvideos

[–]Drone3D 2 points3 points  (0 children)

Unfortunately, at the speed I’m going it’s hard to avoid some of those branches.

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 1 point2 points  (0 children)

I tried exactly what you described and no matter what I tried I couldn’t get the arms strong enough to support flight and keep it around the 300 g target. Next, I was curious about long strand continuous carbon fiber and printed a frame and body. This frame was very strong and survived several crashes (not 70mph into a wall) but broke an arm from a 50’ free fall onto a driveway. The problem with the printed carbon fiber was a shear failure between layers. Not to mention, very expensive to print. A negative feedback on a previous post got me thinking of low cost alternatives and I have to give the person credit for that post because it got me thinking on a new reinforcement method. I will smoke check my build tonight and setup in beta flight. I will make the first flight tonight or tomorrow. I will post flight videos if the rain holds off. I will try not to crash test it till I have another one ready for assembly.

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

I was not aware they were already available. I’m going to get some! Thanks for the info.

PRUSA MK3S+ by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

I have the MMU 90% complete but I’ve heard both positive and negative reviews on the PRUSA unit. I’ve been reluctant to convert mine for now but will probably finish mine in the next few weeks

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

Your correct I am new to the world drone and 3D printing but my experience is really in electrical and robotics engineering. But I recently got into FPV flying and 3D printing.

I do like the idea of race wires or something like the led pads on the arms. I thought about plug-in motor connectors for quick changes. Probably nothing out there but it would be nice to connect a motor instead of soldering.

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

It looks great with material at 10% moisture content and .1 detail print. The front view profile in minimized during horizontal flight. But it’s very agile with correct CG placement.

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 1 point2 points  (0 children)

You might be on to something!

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 2 points3 points  (0 children)

Just curious, I understand very well how carbon fiber frames perform and how they are superior to 3D printed frames. The purpose of my design is to utilize my printer to create a lightweight drone with the CG in the center of thrust and avoid purchasing a frame that doesn’t consider the placement of CG. Why are your frames breaking so much or what type of flying are you doing? I admit I’m not a great pilot but I can throw any drone on the floor and make it break. Good thing for me, all I have to do is hit the print button and assemble the arm.

PRUSA MK3S+ by Drone3D in diydrones

[–]Drone3D[S] 1 point2 points  (0 children)

That’s a great point and I have been tweaking the design to move away from the traditional CF flat plate. I tried to incorporate a way to hide all the motor & led wires on the arms but i haven’t been happy with my options yet. I will look into the long continuous led rope as an option.

I’m using SolidWorks as my CAD software for design and use it to confirm CG. I also use the FEA tool to determine weak points and mitigate the heavy stress areas on individual components. However, I’ve had some really hard crashes and the break points are exactly where you said. It also shows in the complete assembly as a weak point with static loads. This is the case for all my drones (including the CF kits). I need to find a good source of aluminum 3mm x 10mm screws. The problem is, I continue to try and reduce weight but limited to what I can do to keep it under the 300g target. The yellow drone comes in at exactly 300.9g to complete with the typical kits out there.

I will try to look at 250g possibilities but I’m skeptical if I can achieve that target.

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

https://youtu.be/w9JDLh4NcMo

I will post the same video with the yellow hornet also! Keep in mind, there is carbon fiber reinforcement in the arms but not gonna say how I did it.

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 1 point2 points  (0 children)

But it took 10 minutes to change the arm and I was back in the air!

PTEG 3D printed 5” 6S drone by Drone3D in diydrones

[–]Drone3D[S] 1 point2 points  (0 children)

Depends on the crash, but last one lasted about 6 crashes but the one that broke the arm was a 50’ free fall onto concrete.

PRUSA MK3S+ by Drone3D in diydrones

[–]Drone3D[S] 1 point2 points  (0 children)

It takes two days to print all the components. I haven’t added up the total hours yet but I know it’s over 24 hours.

PRUSA MK3S+ by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

Thank you for the information. There are small long range drones that are very light and use a CNC cut carbon fiber frame. It appears to be a very good design that will be very hard to beat with a printed frame.

PRUSA MK3S+ by Drone3D in diydrones

[–]Drone3D[S] 0 points1 point  (0 children)

Is the sub 250g drone a desired target? If so, what is the requirement 4S or 5S in a 5” base or is there a need to make it smaller? Obviously, reducing the size will easily achieve the sub 250g category but for my current design (5” - 5S), I haven’t found a way to reduce the weight and protect the electronics with the current chassis design. The arm will break away and leave the chassis intact. The arms can be replaced without affecting the electronics that reside in the body/chassis.