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Author Topic: Magnets and Modular Control Panel  (Read 945 times)

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ListerD

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Magnets and Modular Control Panel
« on: June 29, 2017, 04:25:27 pm »
I'm in the middle of building a cab with a modular control panel, and was thinking about using magnets for securing the modular panels to the control housing.  I'm comfortable with this not interfering with the PC or the LCD monitor.  However, I'm less certain about it affecting the controller wiring.  I'm using ethernet cables for wiring the buttons and sticks and am not sure if that will interfere.   Also not certain about the trackball or spinner.  Anyone know if magnets would be an issue?  Was thinking a metal strip secured to the front and back rails on the control housing, with one rare earth magnet (1/2" diameter) at the front and back of each modular panel. 

Was also thinking about velcro stripping, but that seems less convenient.  Would also consider other options.  I'm just trying to avoid having to be super precise with the exact placement and alignment of a dowel or cap screw hole on each modular panel. 

GeoMan

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Re: Magnets and Modular Control Panel
« Reply #1 on: June 30, 2017, 12:26:23 pm »
If you consider that the Ultrastick joysticks contain a magnet attached at the bottom of the shaft and in the middle of their circuitry i don't think that you will have any problems.

And you can still use some aluminum foil for shielding nearby cables if you are worried about magnetic fields.

 

Jakobud

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Re: Magnets and Modular Control Panel
« Reply #2 on: July 07, 2017, 01:43:10 am »
I had his idea years ago but I was going to use strong electro magnets to hold the CP pieces in place. And when you want to swap something you hit a switch that powers down the electro magnets so that everything is loose. Never investigated it much but it's an interesting idea. Also it might be a solution to a problem that doesn't exist. But i dunno.
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drventure

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Re: Magnets and Modular Control Panel
« Reply #3 on: July 07, 2017, 11:12:05 am »
I've tried using magnets for a couple applications like this and it never really worked out very well. You'll have to use some pretty powerful rare earth magnets to have much effect at all.

I like the idea of electomagnets, that might work.

Otherwise, I'd thing about using dowel pins, or maybe cabinet latches or something similar.

RandyT

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Re: Magnets and Modular Control Panel
« Reply #4 on: July 08, 2017, 04:50:56 pm »
Extensive use of powerful magnets for holding down panels is probably newer territory, due to the bad effects of getting them anywhere near a CRT.  Now that LCD's are becoming the norm, it's probably not a bad idea.

If there was some kind of framework to prevent lateral motion, and the magnets are used only for holding it down, I imagine it would be quite effective. 

telengard

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Re: Magnets and Modular Control Panel
« Reply #5 on: July 14, 2017, 06:09:53 pm »
I'm in the middle of building a cab with a modular control panel, and was thinking about using magnets for securing the modular panels to the control housing.  I'm comfortable with this not interfering with the PC or the LCD monitor.  However, I'm less certain about it affecting the controller wiring.  I'm using ethernet cables for wiring the buttons and sticks and am not sure if that will interfere.   Also not certain about the trackball or spinner.  Anyone know if magnets would be an issue?  Was thinking a metal strip secured to the front and back rails on the control housing, with one rare earth magnet (1/2" diameter) at the front and back of each modular panel. 

Was also thinking about velcro stripping, but that seems less convenient.  Would also consider other options.  I'm just trying to avoid having to be super precise with the exact placement and alignment of a dowel or cap screw hole on each modular panel.

Unless you have the lightest touch imaginable velcro or magnets aren't going to cut it.  I have modular panels and even held down with screws I sometimes worry about them coming loose.  Are you considering these methods to avoid having to screw/unscrew them on/off?
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GeoMan

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Re: Magnets and Modular Control Panel
« Reply #6 on: July 15, 2017, 10:17:12 am »
I'm in the middle of building a cab with a modular control panel, and was thinking about using magnets for securing the modular panels to the control housing.  I'm comfortable with this not interfering with the PC or the LCD monitor.  However, I'm less certain about it affecting the controller wiring.  I'm using ethernet cables for wiring the buttons and sticks and am not sure if that will interfere.   Also not certain about the trackball or spinner.  Anyone know if magnets would be an issue?  Was thinking a metal strip secured to the front and back rails on the control housing, with one rare earth magnet (1/2" diameter) at the front and back of each modular panel. 

Was also thinking about velcro stripping, but that seems less convenient.  Would also consider other options.  I'm just trying to avoid having to be super precise with the exact placement and alignment of a dowel or cap screw hole on each modular panel.

If you make your panel to "lock" in place prohibiting all lateral movement and only use the magnets to prevent the panel's upward movement you will be fine.



Unless you have the lightest touch imaginable velcro or magnets aren't going to cut it.  I have modular panels and even held down with screws I sometimes worry about them coming loose.  Are you considering these methods to avoid having to screw/unscrew them on/off?

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Re: Magnets and Modular Control Panel
« Reply #7 on: July 19, 2017, 01:51:04 pm »
I use magnets in my swappable panels setup (i.e., full panels, not modules) and it works great.  But, in that setup I have small blocks on the underside of the panels that prevent them from sliding around (this is a very important part of the design).  I imagine that would be much more difficult to do with a modular setup. 


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Re: Magnets and Modular Control Panel
« Reply #8 on: July 19, 2017, 03:30:50 pm »
There are very powerful magnets available nowadays.  Like Cynicaster wrote, you need to prevent sliding.  If you use the right size, type and number of magnets, you could make a panel so hard to remove, it would take some kind of tool/lever to pop it loose.

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Re: Magnets and Modular Control Panel
« Reply #9 on: July 20, 2017, 01:59:02 am »
There are very powerful magnets available nowadays.  Like Cynicaster wrote, you need to prevent sliding.  If you use the right size, type and number of magnets, you could make a panel so hard to remove, it would take some kind of tool/lever to pop it loose.

Find yourself a dead HDD and use the magnets out the drive assembly.  Just be careful as you can break fingers accidentally.
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Re: Magnets and Modular Control Panel
« Reply #10 on: July 28, 2017, 12:45:17 pm »
Find yourself a dead HDD and use the magnets out the drive assembly.  Just be careful as you can break fingers accidentally.

This is quoted for truth,  A colleague at work did it when pulling them apart and they snapped back together. Oh how we laughed  :laugh2: :laugh2: :laugh2:

  
 

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