Übergrinder

F

Fellhoelter

Joined
Dec 29, 2005
Messages
1,367
Is it a vertical grinder?

A horizontal grinder?

Pneumatically sprung with variable tension?

3hp?

Yes, yes it is.

I have had this one on the drawing boards for a couple of years now.

Finally decided to go for it.

It rotates from vertical to horizontal by pulling 1 spring detent pin, and locks in place well.
There's also a quick adjust handle to lock it in place if I want to, with just a fraction of a turn.
This will make it a dedicated vertical or horizontal machine

It's built so it can use pneumatics, or a standard gas spring if I don't like the pneumatics.

Belt tension can go from really light, to "I hope I don't break the belt" with a twist of the dial on the regulator.
Flow controls ease it tight, then loose, so no slamming open and closed.

Beaumont rubber drive and tracking wheels, uses all my KMG attachments.
I other words, all off the shelf attachments.

Second receiver for the fancy tool rest system I have in the Werks.

VFD has moved from these pics, and a light has been mounted.

A mist unit can easily be bolted up, or I'll epoxy a piece of steel on the tension arm and use a magnetic base misting unit.

I'm calling it the Übergrinder.

IMG_1083.JPGIMG_1084.JPGIMG_1088.JPGIMG_1086.JPGIMG_1085.JPG
 
You missed this - with built in ashtray !
(If you go back to work for someone else, you won't have that luxury again. )


I think I see, you used steel bushings and threaded bushings for the wear points ?
Friction fit on the plain bushings I assume, but on the threaded bushings,
are they headed ? how do you prevent pullout when you tighten?



To tighten to preset tension and loosen, you can just move that ball knob-ed valve right and left ?

If you want to loosen tension, do you have to turn the pressure regulator down,
release pressure with the valve, then work up from low to high again?


Why AL instead of steel, just the weight ?



You're got your name on it too- CNC?
 
12345678910 said:
You missed this - with built in ashtray !
(If you go back to work for someone else, you won't have that luxury again. )
Click to expand...
Ahh yes, the ash catcher.

Man if I ever have to go back and work for someone else, life took a bad turn...

12345678910 said:
I think I see, you used steel bushings and threaded bushings for the wear points ?
Friction fit on the plain bushings I assume, but on the threaded bushings, are they headed ? how do you prevent pullout when you tighten?
Click to expand...
Bronze bushings at all pivot points.
Flanged steel drill bushings at the 90* lock points for the body pivot.
Everything threaded that is adjustable, or removeable gets those steel threaded inserts.

They are threaded on the outside too, and self-lock in place.
E-Z Lok inserts.

12345678910 said:
To tighten to preset tension and loosen, you can just move that ball knob-ed valve right and left ?

If you want to loosen tension, do you have to turn the pressure regulator down,
release pressure with the valve, then work up from low to high again?


Why AL instead of steel, just the weight ?



You're got your name on it too- CNC?
Click to expand...

Yep, just move the ball knob.
No need to release tension to adjust either, I used a relieving regulator.
It bleeds off the excess pressure on its own.

I went with Aluminum, for several reasons, weight not being one of them, except on the 1.5" arms.

It's inexpensive, easy to machine, and for what this is, it is plenty strong.

Steel is overkill in my opinion.
We're just grinding stuff by hand.

And yes, I did CNC my name on this one, in several places.

Trying to learn how to run my new mill, so I am looking for un-necessary things to do in order to hone my skills.
 
That is a Formula 1 grinder right there!

Very much looking forward to seeing the fancy tool rest as well
 
Awesome! KMG meets Bader meets TWG meets the Dozier pneumatic tensioning system :)
 
Awesome. But does it remind me to put on my safety gear and adjust the music volume automatically? And the cup holder that moves away from the grinding area and auto covers the cup during grinding, then returns it to within reach when you stop grinding, even if you don't turn off the grinder. What else...? Finger tape dispenser.

I'm sure I can come up with some more stuff. :)

Seriously though, really impressive work.
 
How about automatic belt changer?

Man, that is seriously a daaang cool grinder. I was just contemplating ideas on a horizontal/vertical grinder, and here you made one.
 
Brian, unless you plan to start building your gadgets for sale, you really need to stop teasing us. I'm still pissed about the water cooled platen. :mad:;)
 
jdm61 said:
Brian, unless you plan to start building your gadgets for sale, you really need to stop teasing us. I'm still pissed about the water cooled platen. :mad:;)
Click to expand...

+1!

A built in ash tray? Seriously?!? SICK build, Brother!
 
The first thing I noticed was that this was mounted on a HF grinder stand...talk about being from different worlds.

I like it a lot. I have some short pneumatic cylinders and controls. I may steal your idea when I build my mega-belt grinder to simulate a Japanese kaiten-toshi (large wet grinding wheel).
 
How about adding an optional counter-rotating second contact wheel so we could do those two-grinder hollow grinds using a single machine. ;)
 
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