Pavako RC Engineering
Y6 Copter Build Part 2
One each side a 16mm diameter carbon tube with a length of 330 mm is slide in. Do not assemble it, since the COG should be determined first.
First on each motor plate a motor is fixed. The main reason is that those screws cannot be reached anymore once the plates are assembled onto the frame. The pictures below show the assembly process. Use 4 M3 bolts to fix the motor onto each motor plate. I used bullit head screws that were not too long. The end shall not touch the inner winding of the motors. This could damage the motor coil and causing a short circuit between the inner windings.
Use the long screws first to assemble both tube clamps to the carbon motor plate. Do not tight them yet since the assembly should be slided onto the carbon tube arm. The short srews are needed to assemble motors M3 and M2 respectively.
Make sure the outer red tube clamps are flush with the end of the carbon tube. Tighten the screws when the motor is level. Refer to picture below.
Repeat process for the other arm. Final result shown in the pictures below.
Now the tail motor M4 should be mounted. Use the black tube clamps. The process is the same as above.
© 2015 P. van Kooten
The left and right front arm motors are mounted first. Use the red tube clamps. Make sure the motors M5 and M6 are mounted according to the picture below. This picture is derived from the DJI documentation. Both motors are pointing to the ground.
The picture below shows all required parts to assemble the motors onto the frame (2 motors per arm)
Now its time to assemble the motor mounts. Each motor mount consists of four aluminium tube clamps and two carbon plates on which the motors are mounted ; one motor on top and one on the bottom. Each motor is fixed to the motor plate with four screws. Make sure the orientation of the carbon motor plates is correct. This means the wires should end up to the edge of the carbon tube. This will enable that the wires can be feed through the carbon tube towards the main frame.
Make sure the slots line up before inserting the screws. Later the TOP plate is pressed down to match the two nothes from each landingpart. This will guarantee that all screws perfectly fit in the thread of either the aluminium spacers or the tube clamp parts. Once pressed down all screws can be tightened.
The TOP plate is now ready to be assembled onto the frame. Use 6 pieces of M3x6mm hex bullit screws and 12 pieces M2.5x5 mm hex bullit head screws. Refer to pictures below.
Fit the GPS mounting bracking onto the TOP plate. Use 6mm screws and a hex-nut on the bottom side. Apply a little bit of loc-tite to make sure that the mounting bracket won't come loose.
Now the Y6 Copter can be finally place onto his legs :). This is handy to assemble the remaining parts.
The next step is to slide in the landing legs and tighten all screws. Once done one each leg two 16 mm tubes are slide in that form the landings skids. Finish with a red rubber damper on the front side and a black rubber damper on the rear side. Make sure the landing skids can be shifted. Later, when the COG (Center Of Gravity) point is determined the skids can be shifted to make sure the Y6 Copter stays steady, without falling to either the front or backwards.
Now turn over the chassis and assemble the bottom tube clamps. Once finished you should end up the same as the picture below.
The long screws slide in from the rear side. The short ones will hold the aluminium tube clamp on the front side. Use a allen key to tighten them carefully. Repeat this process on the bottom side and again do not tighten all screws together. Only as soon as the tubes have been slided in, everthing can be bolted together. Some more detailed pictures are below to give a bit more information how the landing legs are bolted onto the chassis.
Repeat for other side and make sure not to tight on all bolds. The picture below shows were actually the aluminium spacers were located. They had to removed temporaly to make some room to tighten the other screws.
The teflon prevents that the bolt can come loose. Repeat this process again for the other landing leg. Leave both pre-assembled legs aside to be used later. Now it's time to prepare the Y6 copter to be able to screw on both legs. Therefore four blue aluminium tube clamps are rewquired. make sure all screws are present. Unfortunately I had to remove two aluminium spacers again to make some room for assembling these tube clamps. Once I prepare a next version this requires some attention, however the assembly order is here more important. The pictures below give some more details about this assembly. Make sure not to tight the clamps all the way together, cause first the carbon tubes need to be slide in.
Now assemble on each leg the Tarot 25mm to 16mm adapter. Use the screws that come along with the kit and make sure not to turn them to tight, this might squeeze the carbon tube. Refer to picture below.
Drill hole on each side
Check if (long) screw fits nicely through tube
Mark holes on both sides
Landing gear parts with Tarot parts (25mm-16mm)
Now its time to assemble the landing-gear legs. Make sure you've got four pairs of blue aluminium tube clamps with screws and the two 25 cm long landing legs. First mark with a lead pencil the position of the holes where the screw will be positioned that holds the tarot 25mm to 16mm convertor adaptor. Refer to pictures below.
The landing gear legs will be fitted with 2 blue pairs of the tube clamps. refer to picture below
Now its time to cut a 500mm carbon tube into 2 equal parts of 250mm. Each leg will be fitted later into the created openings in the picture above, using tube clamps. Use a handsaw that is able to cut metal. Be carefull with the carbon particals that comes from the tube. Those could harm your health when you breath them in !!. Go round and round until you marked the complete tube before cutting it through.