FinalGlideAus
terrorizing squirrels
Oh nice one mate. Looks good.
Blackout mini H quad build
- Thread starter C0d3M0nk3y
- Start date
FinalGlideAus
terrorizing squirrels
C rating is related to the capacity not the voltage. Mind you, C rating is not really quantifiable so they can pretty much put on there what they like.
C0d3M0nk3y
Posted a thousand or more times
Thanks. And thanks for posting that STL file.
C0d3M0nk3y
Posted a thousand or more times
narcolepticltd
I unbuild stuff regularly
C0d3 and FGA, thanks guys. I just ordered one from shapeways as well.
zenguerilla
Senior Member
C rate appears to me identically interchangeable with calculated Amp rate. I've wondered if they calculate C rate from what they know is Amp rate, or vice versa.
It seems like C or Amp rate is partially related to the primary wiring, etc. used to connect cells. Not knowing much beyond that, I've assumed something to do with the cell it's self and variations in chemical ability to discharge had something to do with it.
edit: something's dawned on me while i was thinking about this which I do not think I had thought of before, that take an 1800mAh battery @50C = 90Amps, now use 200mAh = 1600mAh left, @50C = only 80Amps. Is that correct?
It seems like C or Amp rate is partially related to the primary wiring, etc. used to connect cells. Not knowing much beyond that, I've assumed something to do with the cell it's self and variations in chemical ability to discharge had something to do with it.
edit: something's dawned on me while i was thinking about this which I do not think I had thought of before, that take an 1800mAh battery @50C = 90Amps, now use 200mAh = 1600mAh left, @50C = only 80Amps. Is that correct?
Last edited:
do you have a direct link? im not having much luck looking through page after page..
all i am finding is very artist version. they look neat but would not offer much protection..
for example artist idea of a protective case?
http://www.shapeways.com/product/EEDBWEPYS/gopro-spider-frame?li=search-results-5&optionId=40601692
looks like a waste of plastic if you are buying it for any kind of protection.
chris.
Last edited:
narcolepticltd
I unbuild stuff regularly
C0d3 linked to the RCgroups post by FGA, where you can download the file. then you'll need to upload it to shapeways to order it.
http://www.rcgroups.com/forums/showpost.php?p=31544136&postcount=12872
ExperimentalRC
Senior Member
For my GoPro protection I drilled and dremeled out a spare waterproof case I had. I removed the buttons, made the holes bigger, removed any material that I didn't think was necessary, and I also removed the mounting tabs, door, and latch. The GoPro is held in with rubber bands. The I dont have a scale, so I cant compare the weight, but its been through many crashes and nothing has broken. If anyone is interested I can post some pictures.
C0d3M0nk3y
Posted a thousand or more times
I decided to try my hand at some video editing with some clips I recorded last month.
narcolepticltd
I unbuild stuff regularly
Looking good man! Is that your mobius running the tail gunner perspective? 
C0d3M0nk3y
Posted a thousand or more times
C0d3M0nk3y
Posted a thousand or more times
Thanks!
Is that your mobius running the tail gunner perspective?
No, I just mounted the GoPro backwards for one battery.
C0d3M0nk3y
Posted a thousand or more times
I'm going to try out the SP Racing F3 on this quad. Here's what it looks like after I soldered the pins on:
One thing that I don't like about this board is that all of the passives are on the bottom. They kind of get in the way of the pins if you attach them to the bottom of the board like I like to. I had to mount the pins at an angle.
I'm switching to the X4R-SB receiver since the SPRF3 can handle the SBus signal natively. So far I have been unable to get SmartPort telemetry working on the SPRF3. I added a FrSky FBVS-01 to use instead.
I soldered the voltage sensor to the PDB on the quad and swapped out the wires going to the rx with ones that fit the telemetry connector (not pictured).
Here's what the quad looks like with the FC installed:
I had to update the firmware on the ESCs to version 14 of BLHeli to get OneShot to work with a looptime less than 1200. I'm currently running a looptime of 800. I don't have the tuning quite right, but here's how it flies so far:
One thing that I don't like about this board is that all of the passives are on the bottom. They kind of get in the way of the pins if you attach them to the bottom of the board like I like to. I had to mount the pins at an angle.
I'm switching to the X4R-SB receiver since the SPRF3 can handle the SBus signal natively. So far I have been unable to get SmartPort telemetry working on the SPRF3. I added a FrSky FBVS-01 to use instead.
I soldered the voltage sensor to the PDB on the quad and swapped out the wires going to the rx with ones that fit the telemetry connector (not pictured).
Here's what the quad looks like with the FC installed:
I had to update the firmware on the ESCs to version 14 of BLHeli to get OneShot to work with a looptime less than 1200. I'm currently running a looptime of 800. I don't have the tuning quite right, but here's how it flies so far:
narcolepticltd
I unbuild stuff regularly
Looking goood man! It's kinda funny how you can tell the new component in the quad just due to the lack of grass stains
Did you set your gyro_lpf to 256? Love that you can get such a low looptime with these FC's... I think 800 is as fast as the gyros can process it.
Did you set your gyro_lpf to 256? Love that you can get such a low looptime with these FC's... I think 800 is as fast as the gyros can process it.
C0d3M0nk3y
Posted a thousand or more times
Thanks!
It's kinda funny how you can tell the new component in the quad just due to the lack of grass stains
Ha! Yeah, it stands out a bit.
I'm still working on that. I tried it at 256 but the motors and ESCs got very hot in a 30-45 second test flight. I think it probably has something to do with the tuning that still needs some work.
narcolepticltd
I unbuild stuff regularly
See if you can get ahold of the current beta build... there's some soft filters in there that clean up a lot of the vibrations being read with the gyro lpf at 256... from boris's last vid:
gyro_lpf = 256
set dterm_cut_hz = 12
set pterm_cut_hz = 50
set gyro_cut_hz = 100
Are you still running PID 2 or did you migrate to PID 1 as well?
C0d3M0nk3y
Posted a thousand or more times
I just tried out Boris B's version with the soft filters. It makes a pretty big difference. The weather here isn't cooperating enough for me to do a full test tonight though.
I'm using PID 1 at the moment. I'll probably try PID 2 too.
