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2x72 Belt Grinder

12-06-2009, 02:16 PM
One other project I have also completed. See Gadget not everything turns out to be a bicycle seat. :-P

http://www.longevity-inc.com/forum/gallery/files/1/4/8/8/img_0886_thumb.jpg (http://www.longevity-inc.com/forum/gallery/showimage.php?i=48&c=10)

http://www.longevity-inc.com/forum/gallery/files/1/4/8/8/img_0885_thumb.jpg (http://www.longevity-inc.com/forum/gallery/showimage.php?i=47&c=10)

http://www.longevity-inc.com/forum/gallery/files/1/4/8/8/img_0884_thumb.jpg (http://www.longevity-inc.com/forum/gallery/showimage.php?i=46&c=10)

This grinder/sander is what most blade smiths are using for stock removal. I must admit it seems like the best tool for the job. I was amazed at how much metal a 80 grit belt could remove. The other thing is it does not seem to heat the metal up as much as a grinding wheel does.

This build is based on the No Weld Grinder plans from USA Knifemakming. However guys like us can find a lot to weld on it. If I had it to do over again I would have welded the uprights also. I was afraid I would need the adjustability. In the end I did not. I did find getting everything lined up so the belt runs centered is the hardest part.

The motor is a one and one half horsepower 1720 rpm. It drives that belt perfectly and allows for some fairly hard pressing. Touch the belt while it is running you can expect to shear off a lot of skin or a fingernail.

It does a real nice job of shaping and I think I will need to make at least one more attachment for making tighter curves.

Here is a little peak at my first blade. It is from the blank that Gadget cut for me. It is far from perfect but I have learned a lot about the techniques by doing.

http://www.longevity-inc.com/forum/gallery/files/1/4/8/8/img_0890_thumb.jpg (http://www.longevity-inc.com/forum/gallery/showimage.php?i=49&c=10)

12-06-2009, 04:27 PM
If you click on any image it will take you to Torqueman's gallery where you can see all images full size.

12-06-2009, 04:41 PM
Sorry I guess I should have said that. I wanted to get a gallery going to be part of that contest. :)

12-06-2009, 04:46 PM

Is that ever a nice grinder. And the knife is looking none too shabby too. Make sure you show is pictures of your progress.

Art R.

12-06-2009, 07:58 PM
Man that looks awesome! I'm gonna try to post some pics of my automated beer can crusher tomorrow. It should get some laughs...

12-06-2009, 08:25 PM
Nice work TM. Looks like a commercially built unit. The blade is looking pretty sweet too. Now for the bicycle seat.....

12-06-2009, 09:40 PM
Thats one heck of a cool contraption. Makes me want to build one and add it to the list of things I want but have absolutely no use for. :lol:

12-07-2009, 07:57 AM
This might be a dumb question, but why does the belt need to be so long?
Is it just for longer time between belt changes?

12-07-2009, 08:55 AM
There are no dumb questions!!!!!!!!

12-07-2009, 09:11 AM
Maybe heat and belt life management?

12-07-2009, 06:47 PM
Thanks guys. It really does a nice job of shaping metal.

BearNPlum, got it with heat management and belt life. The heat management is amazing on these things. I can't figure out how it can remove so much metal and keep things so cool for so long. It will heat up but nothing like using a wheel grinder.

Still the belts wear out fairly quick. I have gone though 4 on this one knife so far. I will probably have one or two more to clean it after heat treating and one or two more for handle shaping. At $3 to $5 per belt and 40 hours of work those $450 custom knifes seem like more of a bargain. Not only do I have a greater respect for the skill of a professional knife maker but also for the sheer amount of work that goes into each one.

12-08-2009, 01:39 AM
The knife is looking good, way to go.

12-08-2009, 06:47 PM
Thanks. The next step is heat treating. That is a difficult technique to get right. I want to try it my self but with how much work it is to get to this point if I can't get it right in the first blade or two I might start sending them out for heat treating and try that again when I have more experience.