I would like to use this for balancing Compressor wheels for turbochargers, but I see the motor is connected directly to the shaft for this item. Is there an easy setup that can make that the motor doesn't have to be reconnected to the shaft every time a new compressor wheel needs to be balanced?
Hi, an alternate approach is to turn the wheel with compressed air. We have tried it and works fine. Just make sure that the wheel spins at constant RPM for balancing.
@@dynexhobby Would you need to install something into the airline to secure the constant RPM? I'm also interested in this setup with the air compressor integrated for power.
I,m not using a motor drive to speed up but compressed air , is this also possible as air will possible induce vibration ? or can I take the measurement right after when i,m reaching my target RPM?
That is fine, I have used compressed air as well. The software will filter out frequencies above and below the test RPM or 1X as we call it. However, if the shaft is misaligned or bent or has slippage then that might be added to the imbalance signal as these discrepancies occur between 0.5X to 2X which is close to your test RPM.
@@dynexhobby ok that makes sense. Your design is really elegant! I presume the bar linkage system allows translation primarily in one axis, aside from some slight arctuate motion? What does this accomplish? I was considering a similar system, only I would allow for motion in two axes using a flexure bearing.
can this balancer be used to balance an RC Jet engine? the engine is basically like your setup here, except it, can't be spun with a belt I'll have to use compressed air.
@@dynexhobby I have a grinding spindle I need to balance. It's service speed id 40,000RPM. Do you think I could balance that at 5000RPM with your tool?
I watched this whole video hoping you would show how to identify a precise angle for weight placement. such as suppose the software says put a weight at 243 degrees. other than eyeballing how do you identify location. Second thing I was hoping to see is how far out to place the mass. It appears the answer is "all the way to the edge". So annoying to have you go into detail about the math coefficients and not show the measure placement of the weights. The other question I had was why you identified the inner part of the dumbbells as plane 1 and plane2. Maybe because that is where you knew weights would go. If I had specified the distances in the software to the outer surfaces could I have placed weights on the extreme front and back as well?
Software has been updated to deal with the type of rotor arrangements since this video. The software will show you where to place weights and also how far out the masses are after each run.
@@dynexhobbyalso if plane 1 says add weight at for example at 92 deg. That’s perfectly reasonable. The issue is when doing plane 2. If I says like 234 deg, is that from front view or rear view? That’s confusing because from the front, 234 deg would be well at 234. But if you look from the back 234 deg would be opposite side.
