MMG online (almost)

T Blade

T Blade

Joined
Aug 25, 2003
Messages
1,466
Well, I finally got the old Mickey Mouse Grinder running.
album.pl
I only wish that I could get the pic to show up, but you should be able to see it by clicking on the URL

As you can see the motor mounting system is pretty basic :confused:

album.pl
:rolleyes:
What the heck

The tracking system works very good.

album.pl


I had to do a little tweeking to get it to run straight, but it is fine now :rolleyes:

I know you're wondering "How Much?", but little baby really didn't cost much at all. I did have to buy the motor, controller (a la "KMG on a shoestring), wheels Platen mount, pulleys and flange bearings, but hey, I think the whole thing cost me about $250. Not bad really. Of course that's not counting the actual time spent on it, a long time from beginning to end, but being the procrastinator that I am, not much time acutally working on it :)

The motor is a treadmill motor (1 1/2 HP) that spins at 4000 RPM, I know that I don't need that much speed, so I used a 2 5/8" dia pulley on the motor and a 5 1/4" dia. pulley for the drive shaft. This cuts down on total RPM and increases torque. And it has plenty of torque for what it is (I can stop it using excessive pressure).

The platen assembly is similar to one that I saw at a bladesimths, using the 2" wheel on top with a 4" contact wheel on the lower portion, I just made a cardboard templete of the actual platen that I will be using. I'll take the platen to work tomorrow, and get the material (ie 4" X4" angle bar 8" long) and probably do the cutting and fitting at home.
What do you call the stuff that you put on the platen to cut down on friction? I will need to put a piece of that on the platen.

Maybe someday, I'll finish knives with it and they will be good enough to sell, then I can justify getting a new motor, but for now it'll work just fine.

:D :D :cool:

Larry T

Member of NECKA & NCCA
 
indian george said:
Hooray!!!!! Some of those pieces look fimilar :confused: Looks cooool. Now you should paint it orange and black. [/url]
Click to expand...

IG, think I'll leave it as is, kinda like that "Rat" look :D

Larry T

Member of NECKA & NCCA
 
can't beat the price Larry ,,
and as long as it works ,, what the Hey... nice job..

now you can aford 3 more :D
 
indian george said:
Are you trying to make the grinder look like your Shovelhead????? :p :D
Click to expand...

So right U R. Like my Shovel, as long as it runs...Speaking of run when is the Indian going to ge into that condition? :D :D :cool:

Larry T

Member of NECKA & NCCA
 
Dan Gray said:
now you can aford 3 more :D
Click to expand...

Dan, I've got the steel to make another one, only need the wheels and stuff. :D :D :cool:

Larry T

Member of NECKA & NCCA
 
Thanks Rene :)

Now I need some ceramic to stick on the platen I'm going to make, for friction reduction. I can make a second platen, if I can find somebody to machine a radius on a 6" X 2" piece of ceramic for a poor mans hollow grind, (for now at least).

I really need to get an assortment of 2" X72" belts, say 60, 120, 220, and 400 grit, (is that a good assortment?) a couple of each to start. Already got two 36 grit from IG at the hammer in, one of em don't track so well, but what do you want for nuthin' :)

If somebody could point me in the right direction to get these things, and the best brand and model to buy, I'd really appreciate that. :)

:D :D :cool:

Larry T

Member of NECKA & NCCA
 
nice job larry! looks more like a mighty mouse grinder. pops knife supply is the best on belts.... order one of his catalogs and talk to him to see which belts will suit you depending on what material you're going to use, (i assume 5160) what speed you're running your grinder at, and what types of finishes you're loooking for. good luck man.... see ya soon
 
Thanks for the positive comments.

I've been messin' with my MMG, and it seems that the amount of tension make a difference in the tracking. I increased the upward force and the belt tracks much straighter, and it started singing, which immediately reminded me of the way IG's KMG sounds ;)

I am a bit concerned though about making the tension too tight for fear of premature belt failure, bearings over heating, etc. :eek:

Also, I've made 2 platens, and ordered some pyrocream for both. I will examine the pyrocream when it comes in, if it's flexible, I'm going to get some large diameter pipe scrap and make a radiused platen, and attach the pyrocream, if it's rigid, I'll see if I can get a machinist from work to put a radius on the pyrocream and attach it to a flat platen. I looks to me like an experiment in hollow grinding. :)


Larry T

Member of NECKA & NCCA
 
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