My S031 when powered up floats backwards and drifts sideways, just put on new blades did not fix the problem can anyone help

Check this video on YouTube to understand all about the three flight modes and the SAFE technology. Blade Nano QX Basic Overview and set up

if its spining backwards the blade is up side down motors dont run backwards they run clock wise your blade should run clockwise to its possible they put your blade on backwards you will hgave to flip it put it back on

Worn band saw guides maybe? Or too much tension or change the blade , I use bi metal Haltbar band saw blades of sawblade.com

The problem might be blade drift, feed & speed rates. Are you using a fence? Do you have a good blade? I had pretty good luck with my Haltbar blades of www.sawblade.com . Does your blade track properly? Check this blog site . This might help too.

The way the knife works is that it has two knife blades put together. These blades are serrated (notched). When the power is on, the blades move sideways and basically saw through whatever they are cutting.

It's probably time for a new blade. If you are using a toothless diamond coated blade it can be difficult to see that the diamonds have been rubbed off. It drifts because it cuts more easily on the side of the blade where you have more diamond left. Be sure to use enough water to keep the blade from shedding it's diamonds too soon.

The top of the main shaft is probably broken. There are 2 pins that hold the "head" for the main blades straight and are probably sheared off. This is causing the balance bar to hit the blades and cause it to crash. You could try the crash kit here: http://www.helipal.com/spare-part_v-max-parts_syma-s107.html

if the blades are turning and it wont rise check the top blade turn with you hand and hold the lower gear if it spins its loose the clue inside dont hold the turn blades.
solution: get a small drill bit not to big and a drill at the middle of the shaft by the black part make a hole down to the metal shaft and a littel bit into the shaft know get a small screw that woul fir the hold you just made and in to the shaft and it will hold and wala its fixed

I'd say it was the new wiring that was reversed. Motors cant really start reversing themselves on their own and the only other way it would seem reversed is if the blade was put on backwards...

So yes I think you have the wires reversed when you re-wired the cord.

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The blade guides are not intended to prevent your blade from drifting they are there to ensure proper blade path while cutting forces are being applied. There is a tracking adjustment for the upper wheel. Unplug the saw. Start with light blade tension. Turn the upper wheel by hand while adjusting the tracking knob. When the tracking is close set proper blade tension and check tracking again. You can make fine adjustments to tracking with the machine running.