Grinder photos

Looks fantastic Henrik! Do you have any detail photos of the idler wheel/tracking setup? It looks really interesting (and beefy!). I'd like to know how it works since I have to rebulid my tracking arm at some point.

-d
 
Hi guys,


I finished my grinder last night, here are the pics.

http://www.flickr.com/photos/80915558@N00/sets/72157594531797958/

The forum was an enormus help, thank you very much!

The time to buy belts and steel has arrived, I also decided to build a tempering oven.
I was thinking about 01 or carbon steel to start out with. What do you guys think ?


Henrik


Yikes!:eek: You did a heck of a job on that.

This image freaked me out at first. I thought you had stuck a grinder wheel on the idler :D http://www.flickr.com/photos/80915558@N00/388031830/in/set-72157594531797958/
 
Deker,


I will take some more close up shots tonight or tomorrow.

The idler wheel is on a live shaft held by 2 pilloblocks, same setup as the 10" contact wheel. Under the pillowblocks there are 2 steel plates. These 2 plates are attached to each other by a 3/8' countersunk allen bolt in the middle. There is another threaded hole on the upper plate with an adjustment srew with a knob on it. By tightening that screw the uper plate can be tightened into the desired horizontal position. The lower plate is held by 2 1" x 1" angle iron pieces which are bolted to the pivot arm. The lower plate can thus pivot vertically providing the vertical adjustment. There is a set screw with a knob under the 2 plates pushing upward against the belt allowing for the vertical adjustment. Not sure I described it well enough, just ask if I need to clarify more.


Kerry,

The grinder wheel on that pic belongs to a benchtop grinder sitting on the workbench. I will need to get buffing wheels and replace the grinder wheels with them so I will be able to use it as a buffer.


Wanted to ask sometihng about the temperature of the motor. It is a 2hp leeson motor, after runnign it for about 30 min continuously it gets pretty warm to the touch. Is that normal ? I made sure that the driving V-belt is as loose as possible so it would not put too much stress on the motor shaft but still... Is that normal ?

Thanks.

Henrik

Henrik
 
Great looking grinder! I'm in the middle of putting one together now myself & I really like that platen you made, it looks great.

-Sean
 
Henrik
Nice, looks very solid! That a 1725 RPM or
3450 ? How do you change positon of motor/ grinder
to use different combinations of pulleys
 
Very nice work, Henrik!

Could you comment on the overall cost of manufacturing that?

Thanks
Luke
 
Allan,

One heater for downstairs, one for upstairs. The shop is in the basement that has a very low ceiling. In this case being 5"8' has some advantages.


Tommegow

The motor is a 1725 RPM 2 hp 1 phase 230V motor. I change the RPM range by lifiting up the plate the motor is attached to and changing the belt positoin on the pulleys. I put two set screws through the motor holding plate so I can adjust the angle of the plate so the motor does not hang on the drive shaft of the grinder with it's full weight (which would probably also put some pressure on the bearings of the motor)


Lukers

I'd like to tell you that it cost me $345 and twenty two cents but it didn't.
Originally I wanted to build it to save money but it turned out otherwise. At some low point during the building I was seriously contemplating actually buying the KMG from Roger Frink but it turned out that he does not ship to Canada so I pressed on.

It took a long time, even though it was fun and at times very frustrating to build it. I had no previous experience with any kind of power tools, I did recognize a phillips screwdriver when I saw one, that was pretty much the extent of it. That meant I needed to buy a drill press, drillbits, taps, drillpress vise, clamps, cutting fluid, layout fluid, bolts, nuts , washers, counterpunch set, files, angle grinder, metal bandsaw, air compressor etc. Now I figured most of these tools will come in handy during knife making, but it still cost a lot. Someone more experienced, more skillful or more determined could have probably done it with less tools then I did.

Cost strictly related to the components of the grinder:

about $350 for all the wheels (delivered !) from Norman Coote. That includes the 4 wheels on the grinder, the shafts which he machined for them and the 10' contact wheel and shaft --> this was a great deal imho and Norm was a pleasure to deal with to boot !

About $250 worth of steel

4 pillow back bearings off ebay $50
2 flange bearings from General Bearing Canada $85 --> made in Eengland but still, i think this was a ripoff I could have gotten it way cheaper from ebay - too late.

bolts, washers, nuts, taps, drillbits, counterpunch set, countersink (the dormer countersink I bought at Reno Depot cost me $65, later on I got one off ebay for $12 ... another ripoff) for about $ 140 total

$130 for the motor off ebay (delivered)
$50 for the two 4 step pulleys


where are we now ? $1055

Norm Coote sells his grinder with the 10' contact wheel for like $460 ?

I think Roger Frink sells one of them KMG-s with the 10' contact wheel and everything else included for
$925.......

You be the judge.

In my own deffense:

Second time around I would be able to make it cheaper and faster. The stuff I used is heavier then the steel on the KMG (the machine weighs around 70 pounds maybe more) and would make a good boat anchor, I went with Deker's measurements largely. Also for some reason products related to building a machine are more expensive here in Canada (or I was dumb and did not know where to look for cheaper stuff) then it is in the US.

That's about it.

It is now done, runs like a charm and I am proud of it :) Thank you all for the kind comments !

Henrik
 
Allan,

At some low point during the building I was seriously contemplating actually buying the KMG from Roger Frink but it turned out that he does not ship to Canada so I pressed on. Henrik

I'm probably 3 months behind to you WRT (with regards too) sourcing a 2 x 72grinder. I later discovered that Rick, at KMG, will not ship into Canada. Anyone know why?

Norm Coote was very quick to reply and provided me a quote for his grinder. Nathon, a fellow BS member, invited me to look at his Coote, which just arrived this weekend. This was the first belt grinder I have seen, but it looked of excellent quality.

Anyone every seen or used the grinder Suremak industries is selling?

Dennis
 
Allan,
Second time around I would be able to make it cheaper and faster. The stuff I used is heavier then the steel on the KMG (the machine weighs around 70 pounds maybe more) and would make a good boat anchor, I went with Deker's measurements largely.

Oh crap. Are you going to blame me for the hernia you'll get next time you have to move it? :)

It is now done, runs like a charm and I am proud of it :) Thank you all for the kind comments !

That's the most important part! If you think in terms of knowledge and experience gained vs. cost, you'll realize eventually that you've gome out ahead of the game. My grinder was the first substantial thing I'd ever built, and my confidence in my ability to build "stuff" is now greatly increased (this can be a blessing or a curse though...). I also find that I have a different outlook and appreciation for a lot of machinery that I previously would have ignored or at least not paid much attention to.

I was actually looking at your grinder and thinking I might make some mods to mine based on your interpretation. For one, I like the longer platen you set up. I've been finding lately that 8 inches just isn't quite enough for some operations (alright, alright...Fitzo and IG, keep it to yourselves :p ).

Good work! Now get to grinding!

-d
 
Excellent Job!:eek: I like the motor plate also. I am going to have to look into making one.
 
.....I've been finding lately that 8 inches just isn't quite enough for some operations (alright, alright...Fitzo and IG, keep it to yourselves :p ).

-d

Will do, deker! I'll keep it zipped, so to speak. :D
 
Very, very nice job indeed Brekfast. :thumbup: :)


deker said:
I've been finding lately that 8 inches just isn't quite enough for some operations-d

Man, I can't believe as long as you've been around here, that you would open yourself up to a beating like that. ;)
 
I too have a home built KMG and yours looks very good Henrik. I made mine more to the KMG fashion in concerns with the ideler/tracking control.Yours loos very durable though. Did you buy the contackt wheels? I made mine too from a 8" pvc tired cast iron industrial wheel. I like yours though. Where would I get one and how much?
 
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