Disc grinder table

L

lanternnate

Joined
Nov 5, 2016
Messages
378
I've decided to piece together a disc grinder for myself. I plan to use this disc grinder for a lot of functions: blade flats, blade bevels, and prepping all my handle material. I’ve been looking into table options to help with the handle work. I’ve found tru grit has one that looks very nice and has a slot for a mitre gauge. My concern is it looks in pictures like when the table is removed the table suppport arms on either side would remain in the way blocking full unobstructed access to the disc. That would seem problematic for when I want to do blade grinding. I’ve also found that Beaumont makes a table. It appears that table gets fully out of the way when removed and also appears to have some height adjustment options which would be nice. Seems good for the blade grinding. It doesn’t have any way to use a mitre gauge though which I see as an issue for handle work where I want to square things up or set an angle into the grind. The Beaumont is also much more expensive. Im wondering if anyone has experience with either. Do the support arms get in the way on the trugrit? Also curious if there are other options I have missed. One potential thought based on the price of these things was actually buying an inexpensive disc grinder and scavenging the parts off it to make my own table. Open to any thoughts or suggestions from folks who have wandered this path already. Thanks!
 
I have the tru grit model, and yes the table arms do block the bottom half of the disc, but you still have the top half clear. Still plenty of room for a 2" chef knife.
Another thing to consider is the base plate comes out about 2 inches in front of the disc. I've seen a lot of folks that hang the disc over the edge of the table, wichi isn't possible with the tru grit table/base.
Still trying to figure out some sort of dust hood for it.
 
lanternnate said:
I've decided to piece together a disc grinder for myself. I plan to use this disc grinder for a lot of functions: blade flats, blade bevels, and prepping all my handle material. I’ve been looking into table options to help with the handle work. I’ve found tru grit has one that looks very nice and has a slot for a mitre gauge. My concern is it looks in pictures like when the table is removed the table suppport arms on either side would remain in the way blocking full unobstructed access to the disc. That would seem problematic for when I want to do blade grinding. I’ve also found that Beaumont makes a table. It appears that table gets fully out of the way when removed and also appears to have some height adjustment options which would be nice. Seems good for the blade grinding. It doesn’t have any way to use a mitre gauge though which I see as an issue for handle work where I want to square things up or set an angle into the grind. The Beaumont is also much more expensive. Im wondering if anyone has experience with either. Do the support arms get in the way on the trugrit? Also curious if there are other options I have missed. One potential thought based on the price of these things was actually buying an inexpensive disc grinder and scavenging the parts off it to make my own table. Open to any thoughts or suggestions from folks who have wandered this path already. Thanks!
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Personally, the way I use my disc, I don't think I could live with a tool rest that isn't completely removable. For me it's important to be able to get all over the thing. It cuts differently at any point on the disc, and I like to be able to flip over my work, orient laterally, or vertically, to get even grinding, or on some specific portion of the disc based on the shape of the work, and how the action is pulling the part.

I've got some complaints in general about the beaumont work rest, but overall, it's the best option I've found thus far. It's got a bit of a fiddle factor, and the top of my rest had some extremely deep grind gouges in it when I got it (nothing I couldn't fix), but once you get it setup and locked down, it's pretty easy to pull it off, and then slap it back on, knowing it's dead 90 to the disc face, it's got a set stop for 90, so you can even angle it, and then come back to 90 with reasonable trust that it's going back where it's supposed to.
 
I am in the process of making me a rest for the disk grinder.
I think i'll make a 90° rest, fixed position... easily removable, just to start. I'll upgrade to a fancy tilting rest as soon as i'll have more time to dedicate.
I have never done a dovetailed assembly on my handles, but i'd like to try it in the future. What i am sure right now is i need to have a reliable 90° grinding interface for my disk.
I am under the impression i could even get by if i make a tapered/wedge block i could simply lay on top of my 90° rest, just for grinding the dovetail surfaces.
 
I don't know if he ever finished, but knife to a gunfight was building a disc grinder and had a video or 2 on YouTube. His rest was attached to a single 1 1/2" tool arm that fit a pocket just like a belt grinder. There was also pics on here of someone's disc builds that were basically 5 sided boxes with motors mounted inside. This allowed him to flip the box over to get the disc horizontal. These two ideas could be combined to make one sweet set up. Jmo.
 
stezann said:
I am in the process of making me a rest for the disk grinder.
I think i'll make a 90° rest, fixed position... easily removable, just to start. I'll upgrade to a fancy tilting rest as soon as i'll have more time to dedicate.
I have never done a dovetailed assembly on my handles, but i'd like to try it in the future. What i am sure right now is i need to have a reliable 90° grinding interface for my disk.
I am under the impression i could even get by if i make a tapered/wedge block i could simply lay on top of my 90° rest, just for grinding the dovetail surfaces.
Click to expand...

Yes Stefano, if I was making one, I'd do the same. Not only are there plenty of ways to do tapers with a fixed work rest, I personally, almost NEVER angle my tool rest on the disc grinder. For cutting dovetails, I actually prefer an angled tool rest with the 2x72, because the cutting action is the same across the width of the belt (roughly), where as a disc, has a constantly increasing SFPM from the center, which approaches zero at the very center of the disc, i.e. it's always cutting more the further to the edge of the disc you are at.

Definitely make it easily and quickly removable though.
 
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I planned on doing something like Natlek but with square tubing. I figured it'd be easy to have 2 separate work rests, one at 90° and one at 45° for dovetails and whatnot. I like the round stock and being able to adjust, but does it ever slip on you?
 
this came from Powers knives, you can find him on IG and see if his CAD dwgs ae available
it's really helped my Wa handle execution

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mike-E said:
I don't know if he ever finished, but knife to a gunfight was building a disc grinder and had a video or 2 on YouTube. His rest was attached to a single 1 1/2" tool arm that fit a pocket just like a belt grinder. There was also pics on here of someone's disc builds that were basically 5 sided boxes with motors mounted inside. This allowed him to flip the box over to get the disc horizontal. These two ideas could be combined to make one sweet set up. Jmo.
Click to expand...

I "kind of" finished... haha

The table works great at 90 degrees. I can raise and lower it, move in and out, and even tilt it to about 15 or 20 degrees, but I need to make some slight design changes to get all the way to 45 degrees or better. The main thing though, is that when it's removed, I do have full range of motion without any kind of tool arm or other socket blocking my wheel plane.
 
Jrmysell said:
I planned on doing something like Natlek but with square tubing. I figured it'd be easy to have 2 separate work rests, one at 90° and one at 45° for dovetails and whatnot. I like the round stock and being able to adjust, but does it ever slip on you?
Click to expand...
If you mind on my disc sander......no way ! Most likely would endure if I stand up on table . Two bolt tightening in one point are strong...........
 
I've got the Tru Grit model, which is actually made by Hardcore--and the one issue is that the table when being removed is a PITA, I actually use angle blocks and slide whatever stock I want with it squared up against the miter gauge-this I like, adjusting the table to a fixed angle is tricky, when I want to do it I put an angle block on the table and loosen the bolts on both sides and then tighten one up when I get it to the angle I desire. It is first rate quality I must say.
 
Thanks guys. I’m liking the looks of some of these home brews being shared over the two options for purchase, so I might be stealing some ideas and trying to work out my own.
 
Great ideas!
I like the round pipe arm rigging, i bet it is very strong and won't rotate, but i wonder if it'd cause some chattering in certain situations
 
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