FNG Building a GIB

PT Doc said:
is the table and grinder stable in the horizontal position?
Click to expand...

It seems really solid. I leaned into it hard with a piece of scrap steel and it didn't move or chatter. I think the vibration I noticed in the vertical position could also be attributed to the way the feet are engaging the ledge they sit on. The feet are just 3/8" button head cap screws and they are sitting on a piece of 1/4" plate welded into the table. I looked for some kind of pads to put between them but couldn't find anything locally. I will probably order a sheet of 1/4" polyurethane to go in there and dampen vibration. When the grinder is flipped to horizontal, it is resting on a low profile polyurethane bumpstop from Energy Suspension. I had a pack left over from a rock crawler I built a few years ago. Just to be clear, all the vibration I am noticing is very slight. It is far less than on my Jet 1x42.

Bob
 
AVigil said:
You are going to want to move that VFD to the other side. If the belt breaks it might slap that VFD into oblivion
Click to expand...

I spent a lot of time trying to find the best location for the VFD. It won't work on the other side because I can't reach it when the grinder is flipped to horizontal. I don't know how wild a broken belt gets but, the VFD is about six inches to the right of the track of the belt.

Bob
 
Nice work Bob! Would a hold down clamp help with the vibration? that would also lock it in place in the vertical position.
 
Though I finished the basic grinder build a while ago, I thought I should update to show my latest project. I ordered the rotary platen without an arm because I knew I would need to do some tweaking to make it work. The Rotary platen wants the belts to ride pretty far to the right so I decided that with the 2-1/4" wide tracking wheel shimmed out an extra 1/8" and machining .375" off the arm, I could make it work. And it does...really well actually!

Bob

Untitled by Ranger_Bob, on Flickr

Untitled by Ranger_Bob, on Flickr
 
Bob, I'm impressed in your level of commitment to knife making. You've hit the ground running and have made it look easy. Great job, bud!
 
carbonsteel928 said:
Bob, I'm impressed in your level of commitment to knife making. You've hit the ground running and have made it look easy. Great job, bud!
Click to expand...

Thanks Mike, I appreciate that. It's easy to be committed when the people involved in knifemaking are so friendly and helpful. I should probably post up more of the garbage I've made; wouldn't want anyone to get the wrong idea.

Bob
 
Bob, This is a very nice thread as I am looking at building a GIB. I only have 1 phase 120/240 out here but would want to use a variable speed motor has anyone ever used this set up?
 
Vipir said:
Bob, This is a very nice thread as I am looking at building a GIB. I only have 1 phase 120/240 out here but would want to use a variable speed motor has anyone ever used this set up?
Click to expand...

I am running single phase 220v to the VFD. The VFD converts it to 3-phase.

Bob
 
RangerBobTX said:
Though I finished the basic grinder build a while ago, I thought I should update to show my latest project. I ordered the rotary platen without an arm because I knew I would need to do some tweaking to make it work. The Rotary platen wants the belts to ride pretty far to the right so I decided that with the 2-1/4" wide tracking wheel shimmed out an extra 1/8" and machining .375" off the arm, I could make it work. And it does...really well actually!

Bob

Untitled by Ranger_Bob, on Flickr

Untitled by Ranger_Bob, on Flickr
Click to expand...

How did you cut the angles slot on the tool arm to allow for the compression on the axle? Thanks
 
Ranger Bob, Would you know if the small wheel attachment you used (which I am guessing came from USA Knifemakers) will fit the small wheels made by Beaumont Metal Works? I ask because I am currently building a GIB grinder with a hinge setup to run horizontal and I want to use my existing toolbar with KMG small wheel attachment. I am thinking now of buying a second attachment to leave on this new grinder. I will of course want to use the collection of small wheels ( for KMG) I currently have. I think your grinder turned out great and hope mine will compare to it. Thanks for the information. Larry Lehman
 
Last edited:
LARRYZ10 said:
Ranger Bob, Would you know if the small wheel attachment you used (which I am guessing came from USA Knifemakers) will fit the small wheels made by Beaumont Metal Works? I ask because I am currently building a GIB grinder with a hinge setup to run horizontal and I want to use my existing toolbar with KMG small wheel attachment. I am thinking now of buying a second attachment to leave on this new grinder. I will of course want to use the collection of small wheels ( for KMG) I currently have. I think your grinder turned out great and hope mine will compare to it. Thanks for the information. Larry Lehman
Click to expand...

Larry, I am fairly certain that the small rubber wheels from USA Knifemakers are the Beaumont wheels. They also have some poly wheels that fit the same holder and my guess is they are having those made by someone else. I would just give them a call and verify. I've found everyone at USA Knifemakers to be very friendly and helpful.

Bob
 
PT Doc said:
Looks like a super thin slit. A slit thinner that a bandsaw would make. A super thin slit.��
Click to expand...

Since Bob hasn't responded yet, I'll take a guess and say the bandsaw slit is wider, but when tighten with bolt, the slit clamps together making it look really thin.

Ken H>
 
You must log in or register to reply here.
Back
Top