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Messages - Kananga

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2
Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 22, 2019, 12:03:38 PM »
There's a smaller storm32 but it's 10x more cost, I'm on the gimbal now as I can't move forward until I've got it's guard mounting sorted out, I'm wanting the runcam board and gimbal board to be inside the nose.
I'll keep you updated.

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Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 21, 2019, 07:17:42 PM »
I found my gimbal stuff today, i think it's a bit big lol. The motors were for a DSLR gimbal so I knew they were going to be too big but I was supprised at the size of the storm32 board, the mini cc3d is to use as a second sensor.
I'm going to put it all back with the hex project and order new stuff for this.

4
Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 21, 2019, 12:13:36 PM »
Of course, I'm just getting them perfect then I'll post up.
I have worried about posting it up because I tweak the design until my printer produces what I want but my printer does holes too small so I'm worried if someone else prints it the holes will be too big.
It will be interesting finding out.

5
Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 20, 2019, 06:59:51 PM »
V2 of the prop adaptors printed and I'm quite happy with the design, I need to tweak the hole sizes again otherwise I'm happy.

6
It is worth you considering how much airflow you might be reducing if you sit the motors down lower. It may not be an issue but worth consideration. Looking at the picture above it looks a very open ended motor.

I think i remember the arms having a couple of facelifts to strengthen them so removing a few mm from the motor mounts may not be that beneficial to it's structure although that said I've printed everything at 100% and it seems quite sturdy so probably a couple of mm off the top won't matter.

An alternative you may not have thought about is to make some spacers that simply have the motor mount shape cut into them. Glue them on top of the arms when you bolt the motors on.

I would have thought dji did a lot of work with the geometry of where the motors are in relation to the body, their height, spacing, angle, weight and other various factors needed for a nicely flying model, assumedly these have been reasonably well copied here. Dropping the motors even a few mm could effect how well it flies.


7
Mavic Build Diaries / Re: Mavic F3 4.1 with mods
« on: January 20, 2019, 03:05:00 AM »
Nice job.

8
Do a drawing of your mounting plate and I'll see if I have time to do somthing for you.

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Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 19, 2019, 01:57:23 PM »
Other than the one i linked theres one on thingiverse from someone else on here, its called mavic clone prop adaptor or somthing simular but it looked a mess to me and doesnt fit our motors. Im going to alter and reprint mine this afternoon, let me know if you want to use my version or the other one youve found ;)

10
Its really easy to do it yourself, its difficult for someone else to do it for you without having a motor to measure.

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Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 17, 2019, 05:11:51 PM »
First version isn't quite right, I need to tweak the hole sizes but more importantly I didn't allow for the nut, lol noob error.
The solution is to drop the bottom part to the base of the can.
I will alter it later and reprint. I believe this is will be the solution I'm going to use. It seems strong enough and uses the original pins..


12
Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 17, 2019, 01:30:28 PM »
No, you're misunderstanding me. Leave it with me, I'm going to draw and print an example this afternoon.

13
Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 17, 2019, 12:22:51 PM »
It would be great to use the quick release versions but personally I don't want the props that far away from the motors, I'm assuming there will be folding issues if they are too far away from the motor ends.

I'm not sure I follow your first post, my motors came with prop nuts so I don't need those and I've already got the props as you know so I'm not sure about your suggestion of needing more.

I'm going for somthing like this but for our 6mm shafts http://diyrc.co.uk/3rd-party-parts-12/mavic-prop-adapters-for-5mm-motor-axis/msg5212/#msg5212 I'm going to sink it down on to the shaft with flats so the props are lower.

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Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 17, 2019, 02:54:37 AM »
I've had a look and theres not much on thingiverse. There is a design on there done in a simular way to how I would do it but I think it can be refined for the racerstar motors.

I'm going to draw somthing up and see how it prints.

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Mavic Build Diaries / Re: F4 v2 build 4.1 with camera
« on: January 17, 2019, 02:38:25 AM »
Got the latest version of the base printed out, I need to clean the bits of slurry off it but it's looking good, I'm happy with it.

I've had a look at the props, I know there's adapters you can print or the existing ones could be drilled out but it would have to be accurate.
I'm going to have a look on thingiverse at what others have designed  but I'm tempted to go 1 of 2 other ways open to me, I can either machine new adapters that replace the originals. I'll remove the props and attach them to the new adaptors or I could remove the motor can and machine the end down to fit the adapters. Although that means new props just go straight on I'm not sure I've got any left hand taps or dies the right size.
The more I think about it as I write, I think I'll machine some replacement alloy adaptors if there's nothing suitable on thingiverse although im not a fan of relying on fast spinning printed parts if there's a proven design out there already it would be silly to not at least try it. I print in abs at 100% anyway so as long as the pivot points are strong, accurate and balanced it's the easiest route.

The motors have arrows on the side, that's the direction they should spin in. The prop nut should tighten in the opposite direction to those arrows. The motors will spin in the direction according to your wiring, you can either swap 2 wires over to change direction or the easiest way is to do it in cleanflight or whatever program you use.

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