Hi topher76, welcome to the forum! First make sure in the receiver tab of your flight controller gui (probably cleanflight) that the yaw, roll and pitch have a midpoint as close to 1500 as possible. Values off from 1500 will cause drift. Second, as TexasTeacher says, if you are flying in autolevel/angle mode, make sure you calibrate the accelerometer on a flat, level surface. Try your best, if it is slightly off you can trim the accelerometer. I'm not sure how to do it, but you can probably easily look it up. Finally you may need to tune your PIDs. A low I gain can cause drift. Make sure you try to get it level in acro mode first because adding on autolevel will only add another layer of factors to cause drift.
Thanks for the replies folks. I'm using a naze32 with the flight pack E, from theFT store. I've recalibrated the accelerometer on initial set up, this old house nothing is level so I'll shim up a coffee table and redo that step. The part about PID trimming I'll have to do so.E research on, I used the values in the versacopter build video Bixler made BTW. So maybe just a few I gain tweeks might help. Oh, I've only flown the copter in stable or horizon mode, not good enough to fly on Air mode (or no aito level) just yet. Any and all options on this issue is greatly appreciated!
Alright, I did the recalibrate of the accelerometer and it seemed to help some. It took more time to level the table than to use cleanflight. But my versacopter still pitches back and to the right. My integral nbers are in the 3's. Should I go ahead and tune them higher? I followed Josh's PID tuning In the video, so I'm not sure if it's not a hardware issue rather than a software glitch.
What you're looking for is the four ACC trim commands on the right.
Fly, check which direction it pulls, land, DISARM, then use the ACC trim in the directions you moved the stick to hold level. Takeoff, and repeat as necessary.
This is in discrete bumps (like the clicks on your transmitter) so diarm, move the throttle up then to trim roll, bang the stick along roll in the direction you need to move your stick, then center. Multiple bumps will give you multiple "clicks", but trim only one axis at a time. If you try to trim both roll and pitch by going to the corner, the Naze won't understand what you're trying to say.