KMG Buffer Attachment thanks to Salem

The tapered part is threaded the right way so that when it spins, the wheels screws itself on the spindle. Bad part is that since my VFD stops the wheel pretty fast, the wheel continues turning and then unscrews itself when I stop it. :(
 
Patrice Lemée;10631379 said:
(buffing scares the heck out of me)

buffer_att1.jpg


PS: No engineers where hurt in the making of this attachment. :D
Click to expand...

Buffing scares you?? That spinning spike scare the balls off of me! With my luck, I'd trip and fall on the spinning spike of death.

Great build (cuz you like that sort of thing) but I think, until space is life or death, I'll skip the brain scrambler myself! ;)

Gives me the willies just thinking about it. :D
 
Scott, it looks much worst than it actually is. These are used extensively and I never heard of someone getting hurt on them.
The spinning wheel, which looks so harmless, is WAY more dangerous. Hence putting this on the KMG to take advantage of the variable speed and slow things down in hopes of avoiding death and only getting maimed. ;)
 
Funny, a smith friend of mine came into the shop and expressed some apprehension about what could happen if it screwed into your belly button. Well gee, maybe I just won't use it to pick the lint out after all.
 
Alright, I had to google tapered spindle buffers to get a descent pic, so I could see how it works. To Clarify for those who still don't quite get how it works, the threads on the spindle are continuous from near the point all the way to the straight shoulder. Almost like a screw, except a screw eventually reaches a straight portion of thread. Here the thread is ever increasing in diameter.
I can see where this will aid in quick changes of buffs but is it worth it to reset motor breaking ? Unless you're going to reset it to accomodate the buff and leave it that way all the time, I would think the jam nut ad washer might be less hassle.

But it does look freaking cool with that spike hanging out there.
 
I don't know how hard it is to change deceleration speed with other VFDs, but on my TECO it's quick and simple. You should be able to find a pretty quick stop rate that will still let your buff stay on.

A nice thing about the quick change arbor is not only needing just one buffing arbor for all your wheels, but the ability to quickly spin your buff off and keep it away from contamination when finished.
 
LittleM, I just want to try and slow down the stopping a little to see if that will prevent this from happening. Not enough to be a hassle when I use the KMG for grinding, which is most of the time.

PS: Got a TECO too Salem. Just have to find the printout of settings.
 
Patrice-

F2 is Decel. Time, units are 0.1 second, with a range of 0.1-999 and a factory setting of 5.0 seconds.

In case you had trouble finding the chart.
 
Patrice Lemée;10635535 said:
The tapered part is threaded the right way so that when it spins, the wheels screws itself on the spindle. Bad part is that since my VFD stops the wheel pretty fast, the wheel continues turning and then unscrews itself when I stop it. :(
Click to expand...

little mac said:
Alright, I had to google tapered spindle buffers to get a descent pic, so I could see how it works. To Clarify for those who still don't quite get how it works, the threads on the spindle are continuous from near the point all the way to the straight shoulder. Almost like a screw, except a screw eventually reaches a straight portion of thread. Here the thread is ever increasing in diameter.
I can see where this will aid in quick changes of buffs but is it worth it to reset motor breaking ? Unless you're going to reset it to accomodate the buff and leave it that way all the time, I would think the jam nut ad washer might be less hassle.

But it does look freaking cool with that spike hanging out there.
Click to expand...

OK, "I see said the blind man as he picked up his hammer and saw and proceeded off to work"! I have never seen one in person but I suspected that might be how they worked. I just wasn't sure if it was a special buffing wheel that threaded up on it or if any kind would work! Thanks for the info
 
What is the specification of the buffing wheel you are using? I am using some buffs I have lying around, but they keep pulling up the taper and onto the round area.
 
There are a lot of spindle options with this type of approach, http://www.riogrande.com/Search/spindle. Those threaded tapered ones come with right or left taper. So you can use them on either side of a double spindled bench grinder/buffer.

You can also attach keyless chucks that way too. I have a friend, http://www.louiethefish.com, who loves to use a small sanding disk (of the type that would fit in a drill) with one to do pretty fine profiling on his bone carvings before he switches to a flexible shaft rotary machine.
 
Last edited:
Thanks for the link Phil, your friend does some gorgeous work.
And you have given me all kind of ideas with the keyless chuck attachment thing. Darn you! :p;)
 
Great buffer idea, thanks. Any reason why that same system wouldn't work for a disc grinder?
 
I don't see why not Phil. My main reason for this was to take advantage of the VFD.
And of course to make room for that surface grinder that I can't afford. ;)
 
I like that, I just may have to make something like that for my grinder, unless of course either you or Salem are going to copyright it and force us to buy one so we don't get sued:p

Yes I am late to the party, I was at my brothers for the weekend and his internet and computer leave a lot to desire.

Patrice, where did you pick up the parts for the buffer attachment?
 
All right, which one of you is going to make a couple hundred of these and sell them through USAknifemaker?
 
You must log in or register to reply here.
Back
Top