I have a spiral head on my jointer, but that is another great trick you have just explained I can see I am going to learn a lot from you so thanks for sharing your knowledge and I’m glad I found your channel
The cutting head is designed and manufactured to have an acceptable 'out of balance' range when assembled with standard blades. If a cutting head was assembled with 10 different sets of blades - there might be 10 different values of out of balance, but all would be within the acceptable range. Therefore - moving the blades longitudinally by a few millimeters, will not cause the 'balance' to be unacceptable because the same blades are in use. Q.E.D.
Dangerous method. And not good at all for the mechanicals of your machine. The thing is, head supporting the blades is strictly designed to be very weightily balanced. If you do this, the balance is corrupted and all mechanicals bearing and all will got their lifetime very shortened. Just do the things right, got some backups blades 😉
As the blades are all ground and balanced the effect on the balance by shifting the knives slightly will be infinitesimal, definitely not noticeable without serious metrological equipment to measure minute changes in frequency during running. The amount of displacement to cause any sort of strain on the bearings would have to be immense and not actually possible without fouling the machine.
@@kfayayay2674 Wood Machining is a mechanical art and is much closer to practical engineering than simple carpentry. If you want to be proficient and get the most out of your machinery you must have an in-depth theoretical knowledge of the subject, and of the material which you work with, and the skill to apply that practically to produce the best product possible. In purely theoretical terms, yes, moving the knives will have an effect on balance, but at the same time when applied practically the effect is so minimal that the act of wood cutting and the associated vibration that goes with that will have a far greater effect on any mechanical parts such as bearings.
Great tip Steve. Very useful.
Well, I would've said a bit more than a bad word... 😬
But great find, Steve! I'm going to get one as well! 😃
Stay safe there with your family! 🖖😊
I have a spiral head on my jointer, but that is another great trick you have just explained I can see I am going to learn a lot from you so thanks for sharing your knowledge and I’m glad I found your channel
The cutting head is designed and manufactured to have an acceptable 'out of balance' range when assembled with standard blades.
If a cutting head was assembled with 10 different sets of blades - there might be 10 different values of out of balance, but all would be within the acceptable range.
Therefore - moving the blades longitudinally by a few millimeters, will not cause the 'balance' to be unacceptable because the same blades are in use.
Q.E.D.
I think Steve we have all done that at sometime in our woodworking lives 🤦🏻! Good fix and certainly saves the day! Good to see you back, ATB, Mike.
Certainly can’t fault you for saying a bad word. I would have told myself off for doing such a thing. May have even fired myself! Lol
Dangerous method. And not good at all for the mechanicals of your machine. The thing is, head supporting the blades is strictly designed to be very weightily balanced. If you do this, the balance is corrupted and all mechanicals bearing and all will got their lifetime very shortened. Just do the things right, got some backups blades 😉
I disagree. They are in almost the same place, just a mm or so shifted. The balance is not affected at all.
As the blades are all ground and balanced the effect on the balance by shifting the knives slightly will be infinitesimal, definitely not noticeable without serious metrological equipment to measure minute changes in frequency during running. The amount of displacement to cause any sort of strain on the bearings would have to be immense and not actually possible without fouling the machine.
@@WoodMachinist @SteveMaskery Well, do what you want to do, i just let you hear things from a pro working in the metal and mecanics industry.
@@kfayayay2674 Wood Machining is a mechanical art and is much closer to practical engineering than simple carpentry. If you want to be proficient and get the most out of your machinery you must have an in-depth theoretical knowledge of the subject, and of the material which you work with, and the skill to apply that practically to produce the best product possible. In purely theoretical terms, yes, moving the knives will have an effect on balance, but at the same time when applied practically the effect is so minimal that the act of wood cutting and the associated vibration that goes with that will have a far greater effect on any mechanical parts such as bearings.
I know that. the fact of my first comment is just true. there's mecanical issues.@@WoodMachinist