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Flite Test STEM

Help! Making my first Quad!

LitterBug

LitterBug

Techno Nut
Moderator
You are probably into your own propwash if you are floating straight down. You will find the same thing if you do a quick 180 at speed. Try to always have forward movement to avoid getting into propwash. Be mindful of wind direction, because if you are flying at the same speed as your tailwind, you are flying in your own propwash even if flying forward. Yes, some of that can be tuned out, with PID tuning, and newer FCs and firmware does a better job at combating it.

Some of it is learning how your drone reacts to different environmental conditions. Changing props, motors, etc.. can also impact how it reacts.
 
Houndpup Rc

Houndpup Rc

Master member
LitterBug said:
You are probably into your own propwash if you are floating straight down. You will find the same thing if you do a quick 180 at speed. Try to always have forward movement to avoid getting into propwash. Be mindful of wind direction, because if you are flying at the same speed as your tailwind, you are flying in your own propwash even if flying forward. Yes, some of that can be tuned out, with PID tuning, and newer FCs and firmware does a better job at combating it.

Some of it is learning how your drone reacts to different environmental conditions. Changing props, motors, etc.. can also impact how it reacts.
Click to expand...
Yeah these are only 4000kv motors from what I understand most 2.5" ones are more like 11,000kv.
 
LitterBug

LitterBug

Techno Nut
Moderator
Smaller quads are subject to more environmental effects.

Prop choice can be VERY critical. lightweight efficient props change speed more rapidly than heavy props and allow the FC to have quicker response to react to adverse conditions. This is much more critical on a multirotor than on a wing. Lighter weight props FTW. High weight/inertia = laggy performance.

Minimize vibrations to allow the gyro/accelerometer to better measure what the quad is actually doing. Newer faster FCs can better overcome this with better filtering, but ANY excess vibrations from bent props, or imbalanced props will have a negative affect on handling. Try different props. see if some work better than others. Heavy blunt nosed or shortened, big props usually don't perform as well as props designed for a specific length.

Just because a quad came with a certain prop doesn't always mean it is the best prop for that quad or the way you fly.

flying indoors in calm air can require different setup than flying in a dynamic outdoor environment.
 
LitterBug

LitterBug

Techno Nut
Moderator
Houndpup Rc said:
Faster processing systems?
Click to expand...
The F7/H7 processors are faster and can process the filtering routines etc. better. There are some processors that have less memory. Ie. F411 and F722 have only 512k memory and usually cannot hold all the modern processing routiness. Some of these have already been depricated by INAV and BetaFlight and never supported by ardupulot. Try to stick with FCs with at least 1M memory like the f405. If it is supported by ArduPilot it is most likely a "better" more capable FC. The F405 is a pretty old processor but since it has 1 MB of memory it is still relevant.

F1 and F3 processors have been out of support for several years already. Nothing particularly bad about them, but they do have a slower clock speed and max 512k memory which makes getting ALL the modern features into memory impossible. It would be nice if there was a legacy hardware firmware that supported the new protocols like ELRS and HD FPV while dropping old protocols and features that aren't needed to make room for the necessities. I have lots of old stuff that still flys well but would be nice to have HD FPV and ELRS without adding any real overhead on the slower f3 processor.
 
Last edited:
Houndpup Rc

Houndpup Rc

Master member
Hey @Mr Man if you are still interested in a drone here is a cool video! (I have a couple coming and am going to put them together and sell them on ebay :) )
 
Houndpup Rc

Houndpup Rc

Master member
Mr NCT said:
I'm not @LitterBug but I use a LOT of solder on printed circuit boards, etc. You can't go wrong with kester or mg chemical.
Click to expand...
AIRFORGE said:
What type solder do you have? Can you post a link?
Click to expand...
This is the solder I use:
This is the flux I use:
Neither seem to work that great....
 
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