Dynam 70 mm Electric Ducted Fan Thrust test | 12 Blade Vs 6 Blade 3D Printed propeller | 2600KvMotor

[@radomirfilip8741]

I would suggest to print those props from ASA. Then 1) proper sanding. 2) aceton vapor smoothing.That will result in very smooth surface with less drag. 3) static and dynamic balancing. When you manage all of these steps, you can get very competitive propeller.

[@MechNinja]

Thankyou for your suggestion sir....i really appreciate your thoughts and will definitely do it in my upcoming videos.... In my upcoming videos...i have already tested a new propeller with 0.1 mm layer height and the results are really good. So thanks for watching and don't forget to subscribe so that you don't miss out anything....😊😊😊

[@newerarc4784]

I run a 3d printed 120mm EDF in my 7ft L-39. To get "manufacturer's" specs or better, try SLA printing or sanding the blades after fdm printing. Also, for fdm, try carbon-fiber filled filaments like cf-petg. It sands very easily and the results are phenomenal.

[@MechNinja]

Thankyou for your suggestion sir...i will definitely make one and upload the results... Thankyou for watching the video and don't forget to subscribe 😊😊😊😊

[@mitchellreece3711]

You will get better numbers if you print this at a lower layer height. Try 0.08mm. Also the propellers could benefit in strength from being printed with walls turned up so high that there is no room for infill. Similar to how they grow crystaline metal for turbine blades

[@MechNinja]

Thank you for your valuable suggestion....In my upcoming video, I have tested a new propeller with 0.1 mm layer height. Currently they are having good strength, but I will definitely use 0.08 mm for bigger propellers. And I have reduced the height for smooth finish. And I am also thinking to print them with resin printer. Thankyou for watching and don't forget to subscribe 😊😊😊

[@JSmithIX]

Thank you very much for this video, I am planning to design my own EDF with 24mm diameter.

[@MechNinja]

Thankyou for watching and don't forget to subscribe 😊😊😊😊

[@FlacoGonzalez-u6h]

Things you should do difference as he stated it doesn’t have a smooth surface and that’s why it’s not as good as a purchased one. But what I’ve seen is some guys sand the propellers and add nail polish which makes it as smooth as a store bought one.

[@JSmithIX]

@@FlacoGonzalez-u6h hmm, that’s a good idea!

[@shafimuhammadshafi]

For powering the motors and etc

[@shafimuhammadshafi]

You can use banch power supply

[@MechNinja]

Thankyou for your suggestion, I have used one, after 7 to 8 minutes and delivering 15 amps of continuous current, the ports melted 😊😊 That's why I am back with a battery. And thank you for watching and don't forget to subscribe 😊😊

[@dronepilot260rc]

2600kv. Is this a 6s EDF ?

[@MechNinja]

No...it's a 3S and 4S EDF.......it's a Dynam 70 mm edf

[@ChaitanyaMehta-d6c]

Hi i require 8 * 70 mm 6s 2100 kv edf

[@MechNinja]

Mail me

[@sandeepkumaryogi6737]

Please send me Gcode file of this design

[@MechNinja]

Thankyou for watching the video sir.... You have to purchase it from the link in the description

[@vahagnmelikyan2906]

Where do you get these stl files from?

[@MechNinja]

I have designed them sir..... Thankyou for watching the video and don't forget to subscribe 😊😊😊😊

[@vahagnmelikyan2906]

@MechNinja I'm curious. How did you attached blades to the shaft. I tried on Tinkercad, but it's not working..I attach one blade to the shaft and than combine them. After I "group" them together I try to rotate the shaft 30 degree to attach the next blade,but the object changes it's center of axis after grouping...

[@MechNinja]

Well I didn't understand what you have said....But I have designed my propeller in such a way that it fits the shaft easily.....Well i have quiet good experience in designing....😅😅😅 Don't forget to subscribe 😊😊😊

[@wingsmh27]

Can banggood send it to India

[@MechNinja]

No not now....banggood service was closed for India since 2021 and I don't think it will start in future.

[@wingsmh27]

I need 70mm edf if any website can send it to India please share the link

[@wingsmh27]

@@MechNinja if any website send it to India please send link

[@MechNinja]

@@wingsmh27 wait for 2 days...my new video is coming of 70mm edf

[@MechNinja]

kzbin.info/www/bejne/aZTOYoBpntyAm68 checkout this video....and subscribe also..Its my hindi channel

[@dishantbhure9597]

This is a WRONG ❌ method to calculate the thrust Please make a U stand and put it on the weighing scale and then measure perfectly

[@MechNinja]

Yes the weighing scale method will give me a little extra thrust..... But atleast getting a lesser thrust from a test is good for Factor of safety....and also this test rig creates a perfect condition for a drone motor.....rather than a weighing scale.... Hope you get my point sir.... Thankyou for watching the video and don't forget to subscribe 😊☺️☺️😊

[@bbw3434]

Your way of calculating efficiency/performance is totally wrong, you are dividing a "force" (without multiplying by gravity since it is still in grams) by a power. If you want real performance values ​​(not dimensional) you would have to convert the grams into kilos and multiply by gravity and then multiply by the air outlet speed. To skip the first step of going from grams to Newtons, put your dynamometer in Newtons directly. . All the best

[@MechNinja]

Thankyou so much for your suggestion...I will definitely look into it... But I have used the standard formula which is widely used. If you are going to buy any EDF or motor from the market...then you'll.only see thrust to power ratio in specifications. So i have also used it... But in my upcoming videos i'll try to be more specific to the point. Thankyou for watching and don't forget to subscribe 😊😊😊😊