Super Combo nearing completion...a few newb Q's

[drfrankencopter]

Hi All,

Great forum you've got here!

I just picked up a TREX 250SE Super combo, and am nearing completion (on to wire routing, transmitter programming, and leveling the swashplate), but I have a few questions, as this is the first heli that I've put together myself.
1) Should I have disassembled the factory built components, or is checking the fastener tightness enough?
2) The flybar linkages seem a little tight...change in gravity vector from tilting the heli (blades not turning) is not enough force to counter the friction in the flybar. My EXI450 is not tight like this. Will this loosen over time, or is it likely that threadlock got somewhere that it shouldn't?
3) Tail blade grips are very tight...even without the fasteners installed? Should the blade roots be sanded/filed/dressed to make them fit in the grips a little looser?
4) The tail servo control rod has a sight arc (bend) to it as it passes thru the tailboom guide. Is this normal?
5) I've mounted the control rod balls on the outermost hole of the horns for the cyclic/collective servos, and the innermost for the tail servo. Is this the correct starting point? I think it's right for the cyclic/collective, but the manual was pretty vague on the tail rotor collective servo.
6) The 1.3mm hex driver included in the kit seems to be slightly undersize, and can slip in some of the bolts...the heads don't look stripped, but the tool looks rounded. From what I gather this is normal. Any advice on where to get a good quality replacement?
7) Upon completion of the build I noticed a sealed bag of seemingly 'extra parts'. I'm assuming these are spares. Or, did I miss a step in the build?

I think that's enough questions for now....

Cheers

Kris

[Ralston]

Originally Posted by drfrankencopter

Hi All,

Great forum you've got here!

I just picked up a TREX 250SE Super combo, and am nearing completion (on to wire routing, transmitter programming, and leveling the swashplate), but I have a few questions, as this is the first heli that I've put together myself.
1) Should I have disassembled the factory built components, or is checking the fastener tightness enough?
2) The flybar linkages seem a little tight...change in gravity vector from tilting the heli (blades not turning) is not enough force to counter the friction in the flybar. My EXI450 is not tight like this. Will this loosen over time, or is it likely that threadlock got somewhere that it shouldn't?
3) Tail blade grips are very tight...even without the fasteners installed? Should the blade roots be sanded/filed/dressed to make them fit in the grips a little looser?
4) The tail servo control rod has a sight arc (bend) to it as it passes thru the tailboom guide. Is this normal?
5) I've mounted the control rod balls on the outermost hole of the horns for the cyclic/collective servos, and the innermost for the tail servo. Is this the correct starting point? I think it's right for the cyclic/collective, but the manual was pretty vague on the tail rotor collective servo.
6) The 1.3mm hex driver included in the kit seems to be slightly undersize, and can slip in some of the bolts...the heads don't look stripped, but the tool looks rounded. From what I gather this is normal. Any advice on where to get a good quality replacement?
7) Upon completion of the build I noticed a sealed bag of seemingly 'extra parts'. I'm assuming these are spares. Or, did I miss a step in the build?

I think that's enough questions for now....

Cheers

Kris

It is best to disassemble the factory assembled components.the flybar linkage will loosen up over time or you you can use a ball sizer to get them to your liking.Tail blade roots may need to be sanded.Tail servo rod will have will have a slight arc.Tail servo rod should be about 4.5mm from center. Get MIP Thorp tools. There are extra parts.