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View Full Version : sharpning jig for bench grinder!


Tbarchaser
06-26-2003, 12:08 AM
Well, $79.00 and 2 hours later I can sharpen blades ALMOST as good as the big boys (the ones with deep pockets). With angle adjustment to compensate for stone wear. If it is OK with the moderator I will post pics. I don't want to get the Magna-matic folks mad at me.

B&B LAWN
06-26-2003, 12:14 AM
I WOULD LIKE TO SEE SOME PICS OF YOUR RIG

captken
06-26-2003, 12:29 AM
please...enlighten us.

Tharrell
06-26-2003, 06:28 AM
I'd like to see it also.

thfireman
06-26-2003, 08:05 AM
E-mail pics to me please!! Thanks:)

captken
06-26-2003, 09:09 AM
I'd like to see em' too. The angle grinder, vise combo I have takes me too long to do the job.

Gravely_Man
06-26-2003, 10:09 AM
Please do share what you have come up with. This is definitely the place to share new ideas!


Gravely_Man

bushwoods1
06-26-2003, 10:45 AM
Post some pics, or e mail them to me. Always interested in new ideas.

BrianWilson
06-26-2003, 11:26 AM
Enough with all the suspense, show us some pictures....

FiremanMike
06-26-2003, 05:31 PM
Looking for pictures...or at least a description of what you did. Email me please...

Tbarchaser
06-26-2003, 07:49 PM
First you fasten a pvc 6" cleanout , then grease the threads.
You then add a 6" threaded/slip coupling. the 2x4's are just a spacer, you will have to adjust this to your grinder

Tbarchaser
06-26-2003, 07:52 PM
then cut up a cutting board and fasten it to a pooper flange. be sure to countersink the screws

captken
06-26-2003, 07:53 PM
let it flow

LA LAWNS
06-26-2003, 07:54 PM
AND ??????????????????????????????????
THEN WHAT ???

Tbarchaser
06-26-2003, 07:56 PM
then notch out for the wheel and rotate the gaurd on the grinder.
I cut a square out of the corner of the plastic guide so when you spin the coupling the platform stays stationary. there is 1" of adjustment for the grind angle.

Tbarchaser
06-26-2003, 07:58 PM
Another angle

Tbarchaser
06-26-2003, 07:59 PM
and another

Tbarchaser
06-26-2003, 08:02 PM
oh yeah $69 of that 79 was the cost of the grinder. I know I will need a better stone. but it is a pretty stable platform. and really simple.

KenH
06-26-2003, 08:05 PM
OK...Talk to me like I am 6:D :D Where is the angle adjustment??? I can see the pivoting lft to right, but the angle adjustment???

FiremanMike
06-26-2003, 08:14 PM
I think I've got it!!! The angle is created by how far the stone goes into the cutting board....right??? Do I win a prize?? :D Or am I dead azz wrong?

Tbarchaser
06-26-2003, 08:15 PM
there is no pivot. the surface is stationary it rides along the motor housing side and back with a square notch. and when you rotate the coupling the platform raises and keeps a constant plane

Tbarchaser
06-26-2003, 08:17 PM
wrong fireman, the grinder stays put and is 40lbs. it has'nt moved a bit. I will go take a few more pics so its easer to understand.

FiremanMike
06-26-2003, 08:19 PM
ok....ummmm.....where's the angle then? talk to ME like i'm 4. 6 is a little advanced for the dumb fireman here :cool:

FiremanMike
06-26-2003, 08:25 PM
How about this: as you raise and lower the platform it will change the angle of contact with the grinding wheel? I just went back and looked over your pic's. Just twist to raise....right? (Second guess is better than first)

Tbarchaser
06-26-2003, 08:29 PM
yep....its really simple. I just used pvc and some wood to see how it will work. it works way better than I thought. so I will make a metal one with a dust collection system when the season slows down. I know that pvc wont last more than 6-8 months.

FiremanMike
06-26-2003, 08:35 PM
Thanks for the info. I'm only mowing for 1/2 day tomorrow and needed a little project to keep from having to do the "honey-do" list :). I asked for one of those Delta "muliti-tool sharpening" things for father's day. Not really impressed with it. The wheel moves so slowly, I think it would take forever to sharpen.....high speed/low drag is the way to go....thanks again

rvsuper
06-26-2003, 11:08 PM
First you fasten a pvc 6" cleanout

What do you mean by cleanout?? I'm interested in building one out of my bench grinder at home.

DieselDeere
06-26-2003, 11:24 PM
They are used in plumbing, so if there is a clog in the drain you can gain access easily to snake the clog out. Any plumbing store should have them.

thfireman
06-27-2003, 10:36 AM
Great Job, Thanks:)

BrianWilson
06-28-2003, 03:30 PM
Any more pictures? or explanations

mowerman90
06-28-2003, 03:54 PM
Hey fella's, this is very VERY important. Get clearance/permission from you wife/girlfriend FIRST, before you go cutting up her nylon cutting board. Trust me on this one! Otherwise you may be sleeping out in the truck with your grinder. Tbarchaser correct me if I'm wrong.

Magna-Matic
07-04-2003, 10:03 PM
Hello All,

This has been an interesting thread. No Tbarchaser you have not made us Magna-Matic folks mad.

But please keep us in mind if any of your arrangements don't work out.

Thank you,

Phishook
07-05-2003, 02:38 AM
If it works as good as you're saying, better get a patent quick.;)

Island Lawn
07-09-2003, 02:16 PM
:cool:

Cool!

I'm going to look into this...

Jimbo
08-01-2003, 03:07 PM
The design is basically that of a MAG9000 but the motor is what changes height on the Magnamatic model.
The design is nice for a home project but the problem I see is keeping the PVC from moving due to vibration (changing height).

Also there was a mistake that was made...Magnamatic is guilty of the same mistake. The platform needs to extend further away from the wheel (to the side- not in front).
I have the Mag9000 and you have to struggle to hold the blade flat because the platform is not long enough to support the last half of the blade as you pull it through. If the blades were completely flat it would not be a problem but with the high lift portion curved up it only gives a small portion of the blade to keep it flat on the work surface.

Jimbo

GLAN
08-01-2003, 04:10 PM
Fantastic approach to sharpening blades.............