So, the order, actually the orders, have been placed. I ended up ordering most of the stuff from the HobbyKing HongKong site but since I forgot a few items I ordered them (the ESC Programmer and the Servo Tester) from HobbyKings US warehouse. I also ordered the battery from there since the shipping was much cheaper.
I finally got a delivery confirmation date from the US warehouse, actually from the USPS website. The US order should be delivered sometime next week (about 2 weeks total).
I have no idea when the HongKong order will arrive - their "estimate" was 7-45 days (quite a range...). So, I just have to be patient (hard to do) and wait.
When I was doing my research on the components to order for the Quad, I read a bunch of reviews for each of the items. A funny thing about human nature, during the excitment of creating the order you tend to place more credence on the good reviews and kind of gloss over the negative ones. BUT... after you place the order all of a sudden the negative review seem to scream out at you!!!
So, the ESC I ordered "might be too small" and burst into flames on first use and the motors I ordered might be "dead on arrival" or have the "bearing go out after 5 seconds of flight"!!!
Also upon closer checking of my actual order it looks like I may be receiving a different version of the motors than I thought I was getting. I planned to order the NTM 28-26 1200KV (short shaft version). When I look at my order, it looks like I might be getting the long shaft version. Not sure what if any issues that might cause. I suspect I may have to cut off the extended shaft (which will be pointing at the ground), if it gets in the way. The motor has a prop adapter that mounts on the opposite end to the motor, so the shaft isn't needed. So, I guess I will find out when I open the box.
To be sure the ESC, Motor and Prop combination will operate within their expected range (i.e. the ESC won't burst into flames). I will need to do some static testing when the parts arrive. I need to be able to connect a battery to the ESC/Motor combination and run it up to full throttle with the prop on.
That is the only way to know if the ESC is big enough and if I measure the thrust at the same time I will know if the motor/prop combination will provide enough thrust to fly the Quad.
To perform the tests mentioned above I will need something to mount the components to to be able to run the motor and measure the wattage used and thrust produced. A Thrust Test Bench.
Next post: Designing a Thrust Test Bench
1 comment:
Can not wait to see your build!!!!
I also trade stocks,and have same things you have and more!!! Hard for me to get out to fly doing lot of wood work!!!! Will check back to see how your build comes out!!
Wood Man
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