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Du-Bro 499 Tru-Spin Prop Balancer
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- Built for the modeler who expects the very best
- Manufactured out of hardened material
- Balances air props of all sizes and weights, boat props, spinners, car wheels, heli rotor heads, jet fans, fly wheels, etc.
- Securely centers and locks props on to the balancing shaft for utmost accuracy
- Each balancer comes complete with easy-to-follow assembly and prop balancing instructions
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Du-Bro's Tru-Spin Prop Balancer is the most precise balancer on the market. Our NEW specially designed locking cone securely centers and locks props on to the balancing shaft for utmost accuracy. Each cone is carefully inspected on a calibrator to make sure it is running true. The balancing shaft is manufactured out of hardened material and then is centerless ground giving precision balance every time. The prop balancer's aluminum wheels turn virtually friction free for precision accuracy. The Du-Bro Tru-Spin Prop Balancer will balance model airplane props of all sizes and weights, boat props, spinners, car wheels, helicopter rotor heads, jet fans, fly wheels, etc. Each balancer comes complete with easy to follow assembly and prop balancing instructions. A truly precision instrument built for the modeler who expects the very best.
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There are several videos online demonstrating how to balance the blades and the hub properly so I want get too deep into that. Basically you make sure that your prop balancer is on a level surface and if not then put some pieces of cardboard or something underneath it to balance it out. Then using the balance rod it comes with (or specialty rods you can purchase separately) you will watch closely to see if one of the blades are heavier than the other and then begin sanding it on the underside until the prop doesn't drop to the heavy side. Next you check the hub by holding the prop vertically and then seeing if it drops to one side of the hub or the other. if you find one side out of balance it's best to use a Cyanoacrylate (super glue) with a catalyzer to add weight to the lighter side. If you watch an online video this will make more sense.
This has changed the game for me and now I check every new prop I get, some come balance and some are not. All props are not created equal so it is for your benefit to check and balance them to help reduce the vibration that causes the jello in your video, it also causes less stress on your motors.
My other concern with this device is that it was difficult to assemble. The knurled nuts were too tight on their screws to be threaded by hand, and I marred one of the screws while trying to force it. I had to disassemble everything and lubricate all the screws with gun grease, and was then able to assemble the balancer. In addition, the holes in the plastic base didn't match the hex nuts accurately, so that the screws had to forced here, as well.
I'm sure this balancer would work fine with the props for which it was designed, but a more elegant accommodation for Phantom props and some improved manufacturing refinement is recommended.
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*Balanced props on this.Read more