Multitool belt grinder attachment? Any good? - Miller Welding Discussion Forums
Bench Grinder Belt Attachment
quite popular in australia, since they were invented and once made here. Ive heard they have QC issues lately after moving manufacturing to china.
The biggest problem I have with them is that the platen is garbage, so you'll have to modify that but thats pretty easy. and the next biggest problem is that its too fast for most anything past profiling and grinding a blade. especially if you have a 'standard 3,450 RPM grinder' like on the website. standard here is more like 2,800.
grinding hardened steel is more to do with your abrasives than the grinder. get some ceramic belts and it will handle it
I would suggest you buy the 2x36 model and modify it to take 48+ belts, instead of buying the 48 version
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Those multitool grinders are ok to start mate, but if possible you'd be better of getting a full powered machine. To really remove steel - particularly hardened steel - you need ceramic belts, and they need to be used at relatively high speeds. These 1/2 or 3/4 hp options can't really deliver that.
Here in Aus we actually have a number of great options:
Gameco/Artisan supplies - https://www.artisansupplies.com.au/product-category/knife-making-supplies/knifemaking-belt-and-disc-grinder-parts-and-accessories/
The original company in Oz - great stuff but not cheap - I have one of their variable speed 2x48s and love it.
Jake's firepants co - https://www.firepantsfab.com.au/product-category/knife-making/belt-grinders/scorpion-grinder/
Apparently fantastic grinders, and cheaper than gameco.
And an even cheaper option, or one to consider if budget is a concern, maybe get the frame only - either from Jake or Frisson's knives. You need to find them on fb I think:
https://www.facebook.com/groups/907821383332543/
You would then need to get a motor for it.
Hope that helps - best of luck!
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