MEMBER ITEMS FOR SALE
Custom Knives | Other Knives | General Items
-------------------------------------------
New Posts | New PhotosAll Photos



Go Back   The Knife Network Forums : Knife Making Discussions > Custom Knife Discussion Boards > Tool Time

Tool Time Let's talk shop. Equipment, Tips & Tricks, Safety issues - Post it here.

Reply
 
Thread Tools Display Modes
  #1  
Old 08-18-2017, 12:27 PM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Question KMG Grinder Advice Please

I am finally about to purchase my first 2X72. I've been making knives by draw-filing with bastard mill files for long enough. I'd like to stay under $2K for this purchase and definitely want a KMG.
So many options and not sure as to which package I should get. I'm a hobby maker, not professional. I can only run 110V. I am thinking that 3 speed 1.5 hp and 8" contact wheel are sufficient? Is there an advantage to the 10" wheel?
Any advice appreciated!


__________________
Stay away from fast women and slow horses

Last edited by rockhound; 08-18-2017 at 12:30 PM.
Reply With Quote
  #2  
Old 08-18-2017, 01:50 PM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Sorry, I should have searched the archives 'before' I posted this. All signs point to 8" as being the most logical contact wheel to start with. I may purchase a 10" later if I feel the need.
I just ordered the 3-Speed KMG-8 with platen attachment (1.5hp 110V) and Switch Kit. Total was under $1.8K so I am still under budget! Looking forward to learning and progressing with this tool.


__________________
Stay away from fast women and slow horses
Reply With Quote
  #3  
Old 08-18-2017, 08:59 PM
Connor's Avatar
Connor Connor is offline
Enthusiast
 
Join Date: Jan 2005
Location: British Columbia, Canada
Posts: 34
I use an 8" contact wheel for fast Stock removal when hollow grinding and then move to the 10" when I'm close enough. Congratulations on your new purchase ! It should serve you very well.


__________________
Vashti Tactical Design
Reply With Quote
  #4  
Old 09-13-2017, 10:24 PM
Larry Peterson Larry Peterson is offline
Enthusiast
 
Join Date: Oct 2011
Location: I was born and raised in Spanish Fork, Utah. I now live between Manti and Ephraim, Utah. We built a home here about 10 year ago.
Posts: 73
Friend,

I use a KMG with a 3 hp to do my rough out grinding. It is set up with the 3 step pulley which delivers a great range of speeds for knife work. I have my old Bader so I leave it set at a lower speed for finishing. If I had to choose between the two the Bader would have to go. About 40 years ago Buster Warinski told me to mount my grinder on a pad of rubber to help take out the vibrations and harmonics. I still do this. If you can score a rubber pad from some old belting or horse trailer bed liner you might give it a try. I hope you let us know how this new grinder works out. I wish you well, LP
Reply With Quote
  #5  
Old 09-16-2017, 02:11 PM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Smile

Hi Larry, thank you for that advice and I will do that. I have not had time to assemble nor try the grinder yet due to a heavy volume of work with my business and mining at this time. I just ordered an assortment of belts from Tru-Grit so I'll be ready to give it a twirl once winter sets in up here... that's when my biz slows and I have time for knifemaking. I will update!


__________________
Stay away from fast women and slow horses

Last edited by rockhound; 09-22-2017 at 08:06 PM.
Reply With Quote
  #6  
Old 09-22-2017, 07:53 PM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Thumbs up

I have finally found time to set it up. I must say, it is extremely well constructed and the few welds are of high quality. I had purchased their wiring and switch kit and it wasn't too difficult to install. I have not bolted the base plate to the bench but will if I feel it's necessary. I will likely purchase a small wheel attachment for it next.

KMG 1 by GhostCreekMine, on Flickr

KMG 2 by GhostCreekMine, on Flickr

Larry, I followed your advice and installed a dampening pad under the base. This is 3/8" Firestone rooftop-walkway mat made from fiber-reinforced EPDM rubber. I used to work on skyscrapers and this was something I had leftover for years and knew I'd find a use for it some day.
Firestone Matting by GhostCreekMine, on Flickr


__________________
Stay away from fast women and slow horses

Last edited by rockhound; 09-22-2017 at 08:04 PM.
Reply With Quote
  #7  
Old 09-24-2017, 07:07 AM
Crex's Avatar
Crex Crex is offline
Moderator
 
Join Date: Sep 2002
Location: Acworth, GA and/or Hanging Dog, NC
Posts: 3,395
Hey Rockhound! Been a long time, digging must be good this year. Congrats on the KMG, great grinder that should last you a lifetime. I've got 6", 8" and 10" wheels but seem to mainly just use the ten. I also have the yoke arm and three sizes of the small radius wheels (I think they are 3/4, 1, and 1 1/4), which I use a lot when finishing out handles (don't do as much steel grinding as most).
Looks to "clean" right now, time to make some dust.
Something I didn't do but have seen a lot of others do (and kind of wish I had) is paint all the raw steel except for the arms - they got to slide and are too tight a fit for paint job. That little bit of dipping water spray will eventually get some rust going on the raw steel. Nothing serious, just looks bad. I've been too covered up with work to strip her down and do a quick spray job, but plan to some day.
Happy digging and grinding my Friend.


__________________
Carl Rechsteiner, Bladesmith
Georgia Custom Knifemakers Guild, Charter Member
Knifemakers Guild, voting member
Registered Master Artist - GA Council for the Arts
C Rex Custom Knives

Blade Show Table 5-J
Reply With Quote
  #8  
Old 09-24-2017, 08:25 AM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Hi Carl! Very nice to hear from you. Yup, the Gold has been pretty good this year and my small business has been steady. I'm looking forward to some time off this winter. I just might disassemble the KMG and paint as you suggested. Now would be the best time since I have not really used it yet.


__________________
Stay away from fast women and slow horses
Reply With Quote
  #9  
Old 09-24-2017, 12:45 PM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Home from work today due to some early snow so I have disassembled the grinder and am preparing to paint. I ordered a rattle-can of PlastiKote Bedliner which is a superb coating product with a light texture. I have used it for years on external Jeep components and have great faith that it will perform equally well for this application. It can be easily touched-up at any time and blends perfectly, very durable.
I have also decided to paint the non-contact parts of the steel platen attachment (not the aluminum apparatus). Since this is a high-heat part I will be using engine primer and engine enamel (good to 500 degrees). Not excited about the color but it is Hemi Orange leftover from my Jeep. It also has worked well for years under the hood so I expect that it will handle life on the platen well.
I plan to order a glass platen plate and attach it to the platen. Before painting, I will weld a lip at the bottom of the platen as suggested in threads here to help support the glass in case of adhesion failure.
Platen Painting by GhostCreekMine, on Flickr


__________________
Stay away from fast women and slow horses
Reply With Quote
  #10  
Old 09-25-2017, 09:39 AM
Ed Caffrey's Avatar
Ed Caffrey Ed Caffrey is offline
Super Moderator
 
Join Date: Jun 2002
Location: Great Falls, Montana, USA
Posts: 4,223
Send a message via AIM to Ed Caffrey Send a message via Yahoo to Ed Caffrey
Just use some thought before you apply the paint! I've owned KMG grinders for years, and the mistake I made when I painted my first one was not realizing the tolerances at most "contact" points..... I disassembled it, and once I had painted everything an tried to reassemble, I found that the only way I could get parts such as the idler arm back in place was to blast the paint I'd just applied off.

After that experience I leave the machines fully assembled, and tape off areas not to be painted/coated. Works much better, with far less frustration.


__________________




Caffreyknives@gmail.com
"Nobody cares what you know.....until they know you care."
See me at table 2Q at the Blade Show!
Reply With Quote
  #11  
Old 09-25-2017, 09:56 AM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Roger that Ed, I considered that prior to painting any parts. I know exactly what you mean and appreciate the advice.
As an example, this is the idler wheel pivot I painted yesterday. As you can see, I masked the contact surfaces as not to interfere with the tolerances. I will not be coating the large tool arm at all, maybe light oil coat occasionally.
Pivot Arm by GhostCreekMine, on Flickr


__________________
Stay away from fast women and slow horses

Last edited by rockhound; 09-25-2017 at 10:20 AM.
Reply With Quote
  #12  
Old 09-25-2017, 10:20 AM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Idler arm pictured.
"X" area will be masked as well as the inside of the wheel pivot brace. (waiting for more paint to arrive Weds)
Idler Arm by GhostCreekMine, on Flickr


__________________
Stay away from fast women and slow horses
Reply With Quote
  #13  
Old 10-13-2017, 11:52 AM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Smile

A quick update on this. I have finished painting and everything went well. Thought I would take a few pics because it will never be as clean as this again.

KMG paint 1 by GhostCreekMine, on Flickr

KMG paint 2 by GhostCreekMine, on Flickr

Glass platen installed using JB. Lip welded to bottom edge for safety. I used slack belts to round the leading and trailing edges of the glass platen. I did not round the sides. Heat painted.
Pyro ceramic platen by GhostCreekMine, on Flickr


__________________
Stay away from fast women and slow horses
Reply With Quote
  #14  
Old 10-15-2017, 07:08 AM
Crex's Avatar
Crex Crex is offline
Moderator
 
Join Date: Sep 2002
Location: Acworth, GA and/or Hanging Dog, NC
Posts: 3,395
Lookin Good!


__________________
Carl Rechsteiner, Bladesmith
Georgia Custom Knifemakers Guild, Charter Member
Knifemakers Guild, voting member
Registered Master Artist - GA Council for the Arts
C Rex Custom Knives

Blade Show Table 5-J
Reply With Quote
  #15  
Old 10-15-2017, 09:07 AM
rockhound's Avatar
rockhound rockhound is offline
Skilled
 
Join Date: Jun 2012
Location: Winter Park, CO
Posts: 310
Thanks Carl! Now... I just need to learn how to use it.
Looking forward to a winter of ruining perfectly good steel.


__________________
Stay away from fast women and slow horses
Reply With Quote
Reply

Tags
2x72, advice, art, assemble, bee, belts, choose, files, grinder, grinding, hobby, kit, kmg, knife, knifemaking, knives, making, mill, mount, package, paint, steel, stock removal, switch, tool


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
No weld grinder vs. Coote grinder andrewj1398 The Newbies Arena 13 04-24-2016 09:04 AM
Knife Makeing Equipment for sale,KMG Grinder,Contour grinder,Buffer ...ETC Nathan House The Outpost Trading Post 6 08-05-2015 11:14 AM
Bench grinder vs. Belt grinder stillwaters The Newbies Arena 7 03-13-2013 06:36 AM
For Sale: Multi Tool Grinder attachment & Delta 6" variable speed grinder Uncle Buck The Outpost Trading Post 0 03-16-2009 07:45 PM
Cheap bench grinder/polishing grinder Peldor The Newbies Arena 7 01-23-2007 03:02 PM


All times are GMT -5. The time now is 06:04 AM.




KNIFENETWORK.COM
Copyright © 2000
CKK Industries, Inc. All Rights Reserved
Powered by ...

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
The Knife Network : All Rights Reserved