So I went shopping for grinding belts. I found aluminum oxide, ceramic, zirconium, and silicone carbide. My question is are some better for rough grinding, pre hardening and others better for hardened steel?
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So I went shopping for grinding belts. I found aluminum oxide, ceramic, zirconium, and silicone carbide. My question is are some better for rough grinding, pre hardening and others better for hardened steel?
I am not an expert in abrasives, but here is a web site that might shed some light on your question.
https://www.abrasive-systems.co.uk/r...-abrasive-why/
It sounds like Zirconium oxide (Zirconia) might be the best abrasive for rough grinding and significant material removal, but other abrasives might be better for final polishing.
Ceramic and zirconium last much longer than alox or sic. Especially for lower grits where you want to remove a lot of material.
I haven't tried the all by any means, but prefer the orange Blaze ceramic, at least up to 120 grit. After that I use silicon carbide.
The ceramics cost more, but last way, way longer, run smoother and cut easier with less heat. I get most of my belts from Trugrit.
Whatcha grinding with, Rez? Was there a grinder made in Texas?
No. No grinder built in Texas, but there is a company that makes them right here in B.C. Nexus Grinder. I ordered one. I was going to build on but I think this is more simple. I have no idea what I will be grinding though. Seems I’m about to get really busy.
If your like most people you will find a lot of uses for that grinder.
:)
I just looked at the grinder website
It looks like a well made grinder with some good features. I liked the size of the work rest a lot. The flat platen can be adjusted in a number of ways and you can have different tool arms.
And the price is very good.
:)
Those are Canadian dollars too! I think it is a very good value and like most I try to support those closest to home when I can. After a few emails I was pretty convinced it made the most sense.
so in Canadian dollars what are you looking at for the grinder, arms, platens, and a motor with variable speed? if i remember correctr, Daves Bader is around 2500, not sure about the extra parts, but it has the controller and motor, and its a pretty slick outfit, thats why ill have to have 2, unless this one is a much better deal then ill get 3!
For me it was down to what type of belts were available in the grits I wanted.
Don't forget the Trizact belts which go up to 2500 grit.
:)
Well to get some things in perspective the landed cost on the Nexus is $800 CAD which is $600 USD more or less. I have a motor and I am going to use the more bullet proof speed control of two stepped pulleys. I can run either KMG or Bader tool arms and accessories. Also Bader Does not ship to Canada.Quote:
Originally Posted by tcrideshd
Quote:
Originally Posted by RezDog
You can just go with 1.5” bar stock and make your own tool arms. Priced out my set up and I’ve got more money in the wheels and tool arms than the frame. I assume shipping is really what’s killing you as far as price goes, stateside tool arms are almost the same price as buying bar stock.
Good looking grinder. It looks like it might be a little light for my taste, but that'd be easy enough to fix with a steel base plate, and cheaper than paying them to do it. The fact that it will take KMG tooling arms is a plus. I'm not overly fond of their small wheels being solid steel, but since you can use Bader or KMG arms you can get and use what you like.
I'd suggest on the tooling arm to go with aluminum if you can, more than robust enough and a lot lighter and easier to change.
I ran my KMG for several years with step pulleys, and when I finally went to a 2 horse variable speed, it was like night and day. But I still use step pulleys on my Coote grinder, and got by for nearly 15 years with step pulleys.
My power is very dirty, and VS controllers are expensive.
Shipping is a killer. It is also very expensive to take the ferry to the mainland and there is no scrap yard. Building will happen. It will just take a lot longer.
Ya, tried and true analog stuff is the bomb. Good decision.
Sounds like a solid plan and at a good price. Good luck on making what you plan on making for parts. Its all beyond me at this stage in life, but will be on the list in the future.Quote:
Originally Posted by RezDog