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| How to Fly the Perfect PicooZ! |
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Do you want to get the most out of your PicooZ? Well, the following information explains what's important to attain great flying with your PicooZ and how to achieve it.... For a perfect PiccoZ, play around the hinge axis on the main rotor should be zero, while being absolutely free to move around that same hinge. Easy to understand that this is nearly impossible to accomplish in mass production. Therefore most PiccoZ's come with somewhat too much play to avoid the slightest friction given the variances in plastic shrinkage and assembly tolerances. For those who want to get the best results, there is a simple way of reducing the hinge play, although if done the wrong way, it will make your PicooZ fly worse! So, at your own risk (no warranty), you could try the following... First measure play by moving one blade tip up and down without bending. Take a metal rod of about 2mm diameter (not critical) and sharpen it to a tip like a pencil. Avoid making it needle sharp or it will make holes in the plastic (that is not the purpose, see further). You can use the tip of a small phillips screwdriver too. Locate on the top side of the rotor, about 3-4 mm each side of the central hole along the hinge axis. Beneath that are hidden the molded plastic hinge pins. Put one finger on the underside of the rotor for support, and CAREFULLY but FIRMLY press with the pin on the top side (right above the hinge pin) to make a small dent in the plastic. Do the same the other side. These dents actually reduce the gap between the plastic of the rotor and the hinge pin, reducing play. Do this in small steps, and check each time if play has been reduced, and if more could be done. It's better to stop too early rather than too late. In the latter case, there will be friction and that is really not what we want. There may be a way back, but I never had to try. I have done it a couple of times and it's actually not too difficult for a careful and delicate modeller's hand. It's best when play is 'just a little bit'.   Once this is done, you can check if the blade tips (with stabilizer rotor at 90 degrees to the vertical rotor axis) are at 90 degrees to that axis too. If not bend one end until it is. Last, check if incidence of one blade side equals that of the other side. If not, adjust one side at the root end by pressure (NOT at the tip) Some small strips of tape on one end or the other can further help to smooth things out. I emphasise that this is at your own risk (if you screw it up), or satisfaction (if you succeed). By Alexander - Silverlit Flying Club
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