Search found 23 matches

by SkyersJet
Feb 27 2022 8:21pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

17.2 kg
by SkyersJet
Feb 27 2022 5:11pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project


I blame the heavy steel ring on the duct for this. The test trolley has got to go as well, too wobbly.
by SkyersJet
Feb 26 2022 2:53pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

I tried angled fins, it was a flop https://twitter.com/SkyersJet/status/14 ... 0553483269

If you mean an outrunner the problem is torque, not power hence the gearbox.
by SkyersJet
Dec 12 2021 3:53pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project



I think I might consider switching to direct drive. The gearbox is still vibrating too much.
by SkyersJet
Dec 05 2021 3:49pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

Hmm must be my browser.

circular intake gave 5.7kg @1492W and the elliptical one gave 5.8kg @1439W
by SkyersJet
Dec 05 2021 8:41am
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

Can people see the video? I just see a blank.
by SkyersJet
Dec 05 2021 8:40am
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

These blades are actually PLA.

by SkyersJet
Oct 12 2021 5:18pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

New Prototype
  • Wider shaft to prevent flexing
    Drive shaft secured at both ends to prevent vibration
    Washout added to blades
    Duct lengthened to allow air to accelerate
    Thinner walls and shorter screws to save weight
    Narrower gearbox to not obstruct air
    Stators are now aerofoil sections
    Nylon blades
by SkyersJet
Oct 12 2021 5:17pm
Forum: Electric Aircraft
Topic: Help needed for manned VTOL
Replies: 26
Views: 1739

Re: Help needed for manned VTOL

Is this project still going? Did you succeed OP?
by SkyersJet
Oct 12 2021 5:14pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

Thanks. It's a TP 5870 inrunner. I am running it with a Hobbywing 14s ESC. I previously used a Castle Edge HV 12s ESC
by SkyersJet
Oct 12 2021 5:14pm
Forum: Electric Aircraft
Topic: Suggested battery capacity for 30 min flight?
Replies: 33
Views: 3014

Re: Suggested battery capacity for 30 min flight?

Depends how its loaded. Max load at optimum operating point then yes 90% but if not it will be lower. Finding that point is tricky.
by SkyersJet
Aug 04 2021 4:52pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

Hi thanks, it looks exactly like the cutaway in the blue diagram. It's just a simple single speed gearbox.
by SkyersJet
Jul 31 2021 8:17am
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

I will make more attempt to balance the next one yes. I will probably do it by sanding.
by SkyersJet
Jul 29 2021 9:06am
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

https://markforged.com/3d-printers/mark-two?utm_source=gads&utm_medium=cpc&utm_campaign=12003716395&utm_content=117251557578&utm_term=%2Bmarkforged%20%2Bmark%20%2Btwo%20%2Bprice&gclid=CjwKCAjwgISIBhBfEiwALE19SQcPfBFXS9USNRAe0pPjJwoxXuFqYS0cl3agrQmoVUSjdljrcRE6BxoClNQQAvD_BwE It'...
by SkyersJet
Jul 28 2021 6:13pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

I think 3D printed blades can work so long as I stop them from hitting the duct wall.
by SkyersJet
Jul 28 2021 11:03am
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

It needs some more work before I can put it on an EV.
by SkyersJet
Jul 28 2021 11:01am
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

Here is a pic of a "segmented" stator, which allows each stator-tooth to be wound individually before the stator is assembled, which can increase copper-fill, and the speed at which robotic assemblers can wind the coils. https://images.squarespace-cdn.com/content/v1/55b509dfe4b078a4338fbd...
by SkyersJet
May 29 2021 9:04am
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

400mm! I know nothing about turbines but they do look good. Great work, what printer are you using and how many parts are in that build as shown? Hi thank you! I use a Creality CR-20 printer to print the parts in PETG. There are 62 parts in the build. How do you like that printer? I assume the impe...
by SkyersJet
May 28 2021 10:26pm
Forum: Electric Aircraft
Topic: Suggested battery capacity for 30 min flight?
Replies: 33
Views: 3014

Re: Suggested battery capacity for 30 min flight?

That is correct. I do realize that if l lost power, that unlike an airplane, l would drop like a rock, so yes, l will have battery percentage available to view, during flight. Flying above 5 m is prohibited! And you should do a lot of remote testing with bags of sand before you even put your foot i...
by SkyersJet
May 28 2021 10:12pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

Jordan325ic wrote:
May 27 2021 7:19am
400mm! I know nothing about turbines but they do look good. Great work, what printer are you using and how many parts are in that build as shown?
Hi thank you! I use a Creality CR-20 printer to print the parts in PETG. There are 62 parts in the build.
by SkyersJet
May 28 2021 10:08pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

Re: 3D printed 400mm EDF project

Well I'll reply back. This is awesome. great job. Could you put into the text the performance you have seen so far? It's harder for me to tease out the values on the gauges at work with no headphones. Hi, thanks for your interest! All of the data is summarised at the end of my videos. In the first ...
by SkyersJet
May 11 2021 3:30pm
Forum: Electric Aircraft
Topic: 3D printed 400mm EDF project
Replies: 43
Views: 3752

3D printed 400mm EDF project

I am working on a project to 3D print a large EDF (electric ducted fan). Currently there are no specific applications but I have VTOL in mind. That's why it is large for better disc loading and the pitch is low for better static performance. However changing the blades to a higher pitch for forward ...