horizontal grinder

Sean, square wheel grinder laying on its side, I rebuilt the tooling arm and the wheels
use roller blade bearings 8mm inside, a small wheel with grade 7 bearings costs me about $8.00
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Now thats a way to recycle Ken. Seeing different setups is a good way to get some ideas.

We are supposed to be snowed in this weekend so Im going to play around with some different configurations.
Im thinking 2 x 72 because of belt interchangeability. VFD would be nice, but is speed control a big concern for a horizontal?

Sean
 
I wouldn't use a horizontal grinder without speed control.

Remember you are using this to finish your edges. I debated about getting a variable speed motor when i ordered my ef-48. I am very glad i got it.
 
I keep thinking about new grinders. I have my single speed Grizzly. I have my VS KMG, and I have my VS disc grinder (both run off a Teco FM50). I'll probably build an EERF grinder with VS. And I'll likely eventually build a VS horizontal grinder. I just keep thinking about how many grinders I can run off of my single 2hp VFD :D. I'm actually going to build an box with expansion capabilities to house some changeover cam switches so I can direct the VFD 3 phase output to whichever motor I choose. 4 grinders (eventually), one 220V outlet. :D Of course, then I can only run one at a time :(....

Anybody know of a 3 pole, 4-on position cam switch?? ;)

--nathan
 
If we could come up with something that can be water jet cut out.
Then you could get Your own motor and wheels to suit Your needs.
That would be the thing to do IMO.
 
Sean Cochran said:
Im thinking 2 x 72 because of belt interchangeability. VFD would be nice, but is speed control a big concern for a horizontal?

Sean
Click to expand...

I think your on track with the 2x72. I tend to use used belts on my horizontal grinder, that being the case, I have plenty of belts for my horizontal.

Yes , Vfd would be nice, but IMHO I would sadly miss my horizontal grinder even though it has ONLY;) one speed.
 
I would be happy with a 48" belt as they cost less but it could take 72" also. Mostly just fine belts. I want a variable speed with a couple different rubber wheel sizes for inside raidius with a table under each one and a sturdy flat platen. The whole idea is to make perpendicular grinds on the profile of folding knives. I didnt even want one until I started making slipjoints.
 
Bruce Bump said:
I would be happy with a 48" belt as they cost less but it could take 72" also. Mostly just fine belts. I want a variable speed with a couple different rubber wheel sizes for inside raidius with a table under each one and a sturdy flat platen. The whole idea is to make perpendicular grinds on the profile of folding knives. I didnt even want one until I started making slipjoints.
Click to expand...


Here's a link too a thread that has some photos of my Horizontal Grinder.

I never did put a platen on it but it does have the tables that you ask about Bruce.

Each table can be moved up and down to utilize the whole 2" of the belt.

http://www.bladeforums.com/forums/showthread.php?t=541598



Take care

Charles
 
Bruce, you have a KMG, right? If so, you could probably fab something up to use your small wheel attachment/tooling arm for the KMG so you can have changeable wheels like the Beaumont grinder.

Great pictures of some neat setups in that link, Charles.

--nathan
 
silver_pilate said:
Bruce, you have a KMG, right? If so, you could probably fab something up to use your small wheel attachment/tooling arm for the KMG so you can have changeable wheels like the Beaumont grinder.

Great pictures of some neat setups in that link, Charles.

--nathan
Click to expand...

I dont have a KMG, but would like to someday.
I think there is plenty of wasted room on belt grinders. You have 72" of belt but we only use a couple small sections. Why not have 4 wheels of different sizes. There is plenty of room for one at each corner at a nice sized platen too. Put the motor on the bottom out of the way and use it as the tracking so you have all 4 wheels usable (rubber covered). The small wheels could be quick change and may have several sizes like from 1/2"-2".
 
I like your setup Charles.
Bruce I was thinking the same thing, using four corners as it were. The only thing that worries me about four wheels is the belt's angle of approach to the wheel would not be as acute making a tight radius difficult. Of course the biggest reason I want one is for slipjoints so that really would not be a problem. But for profiling a tighter angle would be beneficial.
 
Bruce Bump said:
I dont have a KMG, but would like to someday.
I think there is plenty of wasted room on belt grinders. You have 72" of belt but we only use a couple small sections. Why not have 4 wheels of different sizes. There is plenty of room for one at each corner at a nice sized platen too. Put the motor on the bottom out of the way and use it as the tracking so you have all 4 wheels usable (rubber covered). The small wheels could be quick change and may have several sizes like from 1/2"-2".
Click to expand...

It's going to be difficult to take full advantage of your small wheels in such a setup -- the smaller the wheel, the closer to a 90 degree corner you're going to have. Even this setup http://www.bladeforums.com/forums/showpost.php?p=5432257&postcount=6 only manages about a 70 degree angle at best. I do like the ability it has to simply rotate another small wheel into place (plus a wheel not in use is not running), but would much prefer the acute angle of the KMG. I'd also prefer the ability to use 2x48 belts to take up a lot less benchspace.

-- Dwight
 
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zerogee said:
It's going to be difficult to take full advantage of your small wheels in such a setup -- the smaller the wheel, the closer to a 90 degree corner you're going to have. Even this setup http://www.bladeforums.com/forums/showpost.php?p=5432257&postcount=6 only manages about a 70 degree angle at best. I do like the ability it has to simply rotate another small wheel into place (plus a wheel not in use is not running), but would much prefer the acute angle of the KMG. I'd also prefer the ability to use 2x48 belts to take up a lot less benchspace.

-- Dwight
Click to expand...

I do like the looks of Brians machine. OK how about a 4 wheel grinder that takes a 72" belt when all 4 wheels are turning but if you need an acute angle a 48" belt could be used with only 3 wheels turning. That would allow a longer arm for the small wheel attachment.

note, There will need to be removable tables under each size of wheel that will fit only that particular wheel.
 
Stainless? ;)
 
12345678910 said:
I just read the last few posts too and was thinking very similarly also.

-movable/removable tables for each wheel taken as a given
Located on dowel pins to the base makes sense to me

-footprint can be kept smaller with some extra idler wheels to snake the 72"belt
(and give the acute angle clearance on the small wheels)

drive wheel as tracking is smart, have to think a bit on that
This wheel could be kept fairly small, which would also yield a lower belt speed.
Motor mounted below - I agree keeps it out of the way and allows room to do this drive wheel as tracking
-right now -facemount motor, dowel pins...and springs with setscrews occurs to me as simple and possible


1. what size contact wheels do you have in mind?

What combination of wheels would you want on at once, without having to change the setup?
ie. a 4 inch, a 2 inch and 2 small wheels capable of various interchangeable sizes ?
Give me a clue, maybe what I have in mind is impossible, but I want to mock it up if I can to see


3. what size platen?
.
.
Click to expand...

Some more thoughts: It would not be a benchtop model due to it bigger size and it would need to rotate to get to at least 3 sides where the work stations are but could rotate on a sturdy pedestal. I like small wheels for finger guards but also big arcs for handle and blade clips and recurves. I already have a 2" and a 10" wheel and also some small wheels. I would think a 3-6" wheel would be useful. The platen could be mounted between two of the staitionary wheels and needs to be about 6" long is all.

Thanks for considering the planning of this thing. I'm hopeful it will work out and could be another one for the serious maker. I'm just throwing out practical needs for my idea of a versital machine and am flexable so if anybody has ideas lets hear em. I think for small accurate slippies and desk knives its something I would love to have.
 
Bruce

Thanks for your input

no guarantees when i will get one put together as I have hundreds of projects that come first, but I really value your experiences and insight on this.

It's nice to have others give input at the beginning of the process
 
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I've meant to develop a set of horizontal plans for a year now but just haven't had the time. I've got the design basics down. I just need to build some prototypes this summer (when it's warm in the outside shop) and then get them to paper. The horizontal is really an easier build since most are direct drive and only need 1 speed.
 
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