Here is how I did it
The items you need are –
Alloy head (obviously) I brought mine from a well known auction site for £11 delivered with 2 sets of carbon blades !!.
These heads don’t seem to be supplied anywhere with any of the linkages you need and as the ball links are larger than the E-Sky ones you have to buy the original Walkera ones.
HM-22E-Z-05 - Universal Connector
HM-22E-Z-06 - Ball link Connector
HM-22E-Z-38 - Ball linkage set
As heliguy don’t stock Walkera spares if anyone needs a reliable site in the UK to get these you can PM me and I will send you a link.
You also need also need a piece of 3mm diameter steel by 95mm long. I used silver steel as it comes accurately ground to size but you can use mild or stainless steel whichever is easier for you to obtain from your local steel merchant.
Here is a photo of the shaft I made with dimensions.
I am using a Guru-Z frame but as this used the original shaft for the E-Sky head I see no reason why it should not be the same for the E-Sky frame.
The blade holder screws onto flat on mainshaft with this grub screw.
This can then be installed into your swash plate and frame as the original did. I did find that the rear locating pin of the swash plate was slightly tight in the anti-rotation bracket, so I had to file this out ever so slightly (this may just be the Guru-Z frame)
The servo arms on the Walker linkages need to be removed and fitted to your original servo arms. These are held on by small brass pins which can be a bit of a pig to get out, be gentle and try not to damage the linkage. The linkages from the servos to the swash plate also need shortening to suit your own set up.
Here is one of mine changed over. Unfortunately mine had to be set on last hole to keep the linkages in line with the swash plate ball links, this tends to give too a bit too much travel. The other problem is that the swash plate tilt range is less than the E-Sky one, so it tends to try and force the swash plate against the main shaft. I will be fitting a new receiver soon so I can use my DX6i and set up the servo travel correctly. This is not really a major issue and it can still be flown with the standard Tx so long as you are not using full stick movement (Not ideal but is works).
Then it’s just a case of assembling it all together and setting up as with any other head.
Here is a photo of the head fully assembled.
Hope this answers most peoples questions.
Tony
