Hi Dangus,
You could use an optocoupler and a contactor to do this. I wouldn't wire the primary current through your micro switch directly. I've replaced more micro switches in my lifetime and this can be avoided.
You could just wire it up to a warning light as well. Use an LED type.
-Chris
You could use an optocoupler and a contactor to do this. I wouldn't wire the primary current through your micro switch directly. I've replaced more micro switches in my lifetime and this can be avoided.
You could just wire it up to a warning light as well. Use an LED type.
-Chris
You guys just don't have any imagination. What 'ya do is wire the opto not only with the power switch, but to a big contactor across the mains. If you forget to replace the key in it's "home", the contactor crowbars the mains and blows the breaker when you throw the switch. Then you have to go to the basement with a flashlight and reset it. Now what you have is a true behavior reinforcement system. 
Seriously, the opto key home is a great idea, and actually serves two purposes. Not only does it insure the key is in a safe place, but it's where it should be every time. It seems like I never set anything down in the same place twice, so I spend more time looking for chuck keys, than I do using them.
Seriously, the opto key home is a great idea, and actually serves two purposes. Not only does it insure the key is in a safe place, but it's where it should be every time. It seems like I never set anything down in the same place twice, so I spend more time looking for chuck keys, than I do using them.
I don't worry about leaving the chuck key in my drill press chuck since I got my drill press second hand with the key missing.
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neutron7 said:
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I order all my Led's from here, really good and also accept paypal.
djQUAN said:I don't worry about leaving the chuck key in my drill press chuck since I got my drill press second hand with the key missing.
I just got ROHM keyless chucks for the tailsotck of the lathe and drillpress, German made as well. they are very accurate and nice to use! (and no key to lose!)
The milling attachment is coming along nice, i will post some pics when it is done.
neutron7 said:
I wanted to take the chuck to look for replacement keys but I have no idea how to remove it. I originally thought there is a screw deep inside the open end where the teeth was but there isn't so I left it as is. I hand tighten it and it works so no rush.
djQUAN said:
I wanted to take the chuck to look for replacement keys but I have no idea how to remove it. I originally thought there is a screw deep inside the open end where the teeth was but there isn't so I left it as is. I hand tighten it and it works so no rush.
It's probably a morse taper - there's a lot of info if you search.
Sometimes you'll never get it off though😡
cheaper drill have a thing called a jacobs taper, maybe it says something like "jt3" on the side of your chuck.
it is a short taper that gos inside the chuck. you need to get it off with a wedge of some sort. i use hardwood so i dont scratch the drill.
it is a short taper that gos inside the chuck. you need to get it off with a wedge of some sort. i use hardwood so i dont scratch the drill.
grab the handle on the drill press, lower the chuck, place block of wood between edge of chuck and the upper body.
quick jerk up on the handle should knock the chuck off.
Always clean a morse taper before putting it together.
Even easier, buy two of those 4-way universal keys because your'e going to lose one again.
Emergency chuck key:find the perfect size drill bit, put it blunt end first in one of the chuck key holes.
Use a large flat screwdriver that fits neatly into the teeth on the chuck. Lever against the drill bit. be gentle because you can apply massive force with such a lever. I went 5 years on a drill press doing this, never did get around to buying a key.
quick jerk up on the handle should knock the chuck off.
Always clean a morse taper before putting it together.
Even easier, buy two of those 4-way universal keys because your'e going to lose one again.
Emergency chuck key:find the perfect size drill bit, put it blunt end first in one of the chuck key holes.
Use a large flat screwdriver that fits neatly into the teeth on the chuck. Lever against the drill bit. be gentle because you can apply massive force with such a lever. I went 5 years on a drill press doing this, never did get around to buying a key.
Hi Neutron7,
Email is being weired today. I'm getting yours out of sequence and several hours late.
Just letting you know I have replied to them as I get them 🙂
Cheers!
Email is being weired today. I'm getting yours out of sequence and several hours late.
Just letting you know I have replied to them as I get them 🙂
Cheers!
If you invest in VFD with new three phase motor, you could easily change the speed without loosing the power. On the top of that VFD has additional circuits and relays that allows you to install different switches that could shot the rotation. After that is just your imagination how you utilize that.
I modified my mill and lathe with VFD and I am very happy with it.
I modified my mill and lathe with VFD and I am very happy with it.
Forget to mention - you do not need to have three phase power in your shop. The VFD will convert single phase to three phase, or if you already have it you would just need VFD made for the three phase.
Is this guy's work awesome, or what?
Thanks Neutron!
Thanks Neutron!
An externally hosted image should be here but it was not working when we last tested it.
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