Different Magnetic Joint Style... Is it any good? November 20, 2015 12:28PM |
Registered: 9 years ago Posts: 233 |
Re: Different Magnetic Joint Style... Is it any good? November 20, 2015 03:17PM |
Registered: 8 years ago Posts: 89 |
Re: Different Magnetic Joint Style... Is it any good? November 20, 2015 05:01PM |
Registered: 9 years ago Posts: 483 |
Re: Different Magnetic Joint Style... Is it any good? November 21, 2015 10:46AM |
Registered: 9 years ago Posts: 233 |
Re: Different Magnetic Joint Style... Is it any good? November 21, 2015 12:34PM |
Registered: 9 years ago Posts: 1,159 |
Quote
patrickrio
What holding force is necessary to keep everything together at high speed???? If I know the holding force necessary, I can select magnets and shaft diameter.
Also, since the Balls are 10mm spheres, what is the max cylinder diameter for 2 magnets on that ball without interfering with each other???
Re: Different Magnetic Joint Style... Is it any good? November 21, 2015 02:27PM |
Registered: 9 years ago Posts: 233 |
Re: Different Magnetic Joint Style... Is it any good? November 21, 2015 09:33PM |
Registered: 10 years ago Posts: 732 |
You can compute this. Let's say your steppers have holding torque 44 Ncm and you use 16 teeth T2.5 pulleys.Quote
patrickrio
What holding force is necessary to keep everything together at high speed???? If I know the holding force necessary, I can select magnets and shaft diameter.
Re: Different Magnetic Joint Style... Is it any good? November 21, 2015 09:52PM |
Registered: 10 years ago Posts: 580 |
Re: Different Magnetic Joint Style... Is it any good? November 21, 2015 11:47PM |
Registered: 9 years ago Posts: 483 |
Quote
patrickrio
I have found some 3/16 inch dia 1/2 long cylinder magnets that pull nearly 3 lbs/1.4kg each just connecting to steel (non magnetic) surfaces. 1/4 inch dia magnets can hold up to 7 lbs.
I just don't have an idea how much pull I need..... or how big I can go in diameter.
Quote
Paul Wanamaker
I had trouble when the nozzle bumped a curled edge, it would crash. I ended up using springs to increase the tension, and z hops.
I used high temp 3/8 x 3/8 cylindrical magnets rated between 8 and 9 lbs from here, as I have a heated chamber.
Re: Different Magnetic Joint Style... Is it any good? November 22, 2015 05:58AM |
Registered: 8 years ago Posts: 5,232 |
Re: Different Magnetic Joint Style... Is it any good? November 22, 2015 07:06AM |
Registered: 10 years ago Posts: 732 |
And the maximum accelerations and jerk used.Quote
etfrench
It will depend on how much your effector assembly weighs. Mine weighs 110 grams.Quote
patrickrio
I just don't have an idea how much pull I need..... or how big I can go in diameter.
Re: Different Magnetic Joint Style... Is it any good? November 22, 2015 09:51AM |
Registered: 9 years ago Posts: 233 |
Re: Different Magnetic Joint Style... Is it any good? November 22, 2015 02:27PM |
Registered: 10 years ago Posts: 580 |
Re: Different Magnetic Joint Style... Is it any good? November 22, 2015 02:39PM |
Registered: 9 years ago Posts: 483 |
Re: Different Magnetic Joint Style... Is it any good? November 23, 2015 05:09PM |
Registered: 9 years ago Posts: 233 |
Re: Different Magnetic Joint Style... Is it any good? November 25, 2015 04:22AM |
Registered: 8 years ago Posts: 5,232 |
Re: Different Magnetic Joint Style... Is it any good? November 25, 2015 12:59PM |
Registered: 9 years ago Posts: 483 |
Re: Different Magnetic Joint Style... Is it any good? November 25, 2015 01:05PM |
Registered: 10 years ago Posts: 580 |
Re: Different Magnetic Joint Style... Is it any good? November 26, 2015 05:42AM |
Registered: 8 years ago Posts: 5,232 |
Quote
etfrench
What is this flexible steel tube you speak of?
Re: Different Magnetic Joint Style... Is it any good? November 28, 2015 06:22AM |
Registered: 8 years ago Posts: 5,232 |
Re: Different Magnetic Joint Style... Is it any good? November 28, 2015 03:23PM |
Registered: 9 years ago Posts: 233 |
Re: Different Magnetic Joint Style... Is it any good? November 29, 2015 04:32AM |
Registered: 8 years ago Posts: 5,232 |
Re: Different Magnetic Joint Style... Is it any good? November 29, 2015 08:56AM |
Registered: 9 years ago Posts: 233 |
Re: Different Magnetic Joint Style... Is it any good? November 29, 2015 10:19AM |
Registered: 8 years ago Posts: 5,232 |