Hi droners,

I'm having a bit of a doubt tilting the lower motors in the Y6 I'm about to maiden.

let's take for instance the two rear motors 8 and 4, 8 turns CCW, and 4 CW, but it's the prop that turns CW, as the motor is rotated 180º as well as the prop, motor 4 will turn CCW like motor 8, right?

So looking at the motors from behind, what is the correct layout for tilting the bottom motors in a Y6, A or B ??



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Anyone please???  I have an indoor session tomorrow and I don't want to mess it up on the maiden ;-)


choice B:

the important thing is the orientation of the prop... ignore were the motor is in relation to the prop

the prop 8 should turn CCW and 4 CW in relation to the QUAD not the motor. so if you flip the motor 180 you need to reverse the rotation and the prop so that it still produces upward thrust in the correct rotation.

I would try to fly without tilting the motors... the Y6 I have flown had enough yaw control without offsetting the props.  if you need more authority in yaw you can modify it later

Thanks Chris, I thought so, but in the last minute I had a doubt "attack" ;-)

thanks again,


Another question about tilting Y6:

as the two motors on each arm are one on top of the other and turning in different directions, is it really necessary to tilt motors on a Y6??  Don't they compensate each other??


Hi Dani

I have also built a Skybot look alike. I used 25mm square aluminium 6082t6 tube 3mm wall thickness machined out similar to skybot. (Yours looks like it is a thinner wall thickness) 

The centre plates are machined from 3mm aluminium.

The machine does fly  well with good  yaw control with the motors straight. My concern is that the booms are easy to twist by hand. What material have you used?

My booms are 600mm long and I am thinking of re- making the booms shorter and using carbon for the centre plates to reduce weight as it is 3.5kg ready to fly and with the Axi 2814/22's it is pulling 70 amps in the hover. 

I have been using Mikrokopter electronics will be replaced by the APM2 when it arrives at the end of the month so I will probably be looking to compare parameters before I fly it.



Hi Arthur,

good to know there's another Skybot around ;-)

My booms are 570mm long, made of 25mm square aluminium tube, with 1.5mm wall thickness. I can't twist them no matter how I try, I don't understand how can you!! (are you big, strong and green ??  ;-) )

My center plates are made of Glass Fiber, 2mm for bottom and 1.5 for the top one.

The secret is to add some bolts between the plates so you create a "Box" efect, wich makes the whole thing very strong.

Mine weights 1950gr + Batt.

Got any pics of your bird??



I only have a picture of it under construction which is hopefully attached.

By gripping the motors it is quite east to twist (it does spring back) I may have machined away to much material I did  leave only 4mm of material at the edges. I may increase this to 6 and see what difference it makes.

I can check the weight difference in solidworks but have not figured out how to test the strength yet.

Do you know which grade of aluminium you used?

Do you have any photographs of the centre of yours to compare?




Hi Arthur,

here are the pics of my plates, and bars.




And another one, newer with more bolts on the plates


this might help?  Tilting the motors I would think would just be confusing the Gyros/exle and so on. There design to fix all leveling issues with power +/- . Forgive me if I'm not understanding what it is your talking about... Your rotation should be like this also. Again I could be wrong.

I cut carbon fiber Tubing to desired length and run bolt through. Same concept, - the weight:) 

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