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Ed Caffrey's Workshop Talk to Ed Caffrey ... The Montana Bladesmith! Tips, tricks and more from an ABS Mastersmith. |
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#1
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Idea for your Rotary platen
Hi Ed
I realy like your Rotating platen idea. But I use a 3/4" wheel a lot and came up with an idea to add a 3/4" wheel to it. If I was to send you a drawing would you take a look and tell me what you think? Thanks MoblMec |
#2
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Sure, I'd be happy to take a look! Are you thinking of replacing one of the existing wheels with the 3/4"...or adding the 3/4" (then it would be a 3 wheeled plate)
The main reason I did not go with a 3/4" wheel on the original design, was/is due to the very small bearings in a 3/4" wheel.....in order for the bearing to last, a 3/4" wheel must turn slower and should only be run for 5-10 mins at a time. Looking forward to seeing what you come up with. __________________ WWW.CAFFREYKNIVES.NET Caffreyknives@gmail.com "Every CHOICE has a CONSEQUENCE, and all your CONSEQUENCES are a result of your CHOICES." |
#3
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rotating platen
Ed
I would be adding a little more than I said. I am working on drawings so you will understand what I am talking about. I will send them as soon as I get done. Thanks MoblMec |
#4
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Hi Ed
I sent you an email yesterday and wanted to check that you got it? MoblMec |
#5
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Yep! I got it, and looked it over. Looks like it's doable. I've seen several similar setups...some folks like them, and other don't. Based on my experiences, I'm one of those who didn't like it after I used it a few times. For me, I solved most of my issues by just modifying the tooling arms on my grinders with a 3/4" socket setup....and all the attachments with a 3/4" pin. That allowed me quick changes with basically the turn of a hex wrench, which hangs on a chain between my two main grinders.
The one thing you want to keep in mind when you build that attachment....the fact that your using a 72" long belt is the constant.....so you have to make sure that there is enough room so the attachment doesn't hit the grinder frame with a belt in place. That means you have to size the actual attachment with that fact in mind. Aside from that the most important thing is to ensure the attachment holes are a true 90 degrees (square) to the attachment main boday (plate).....even one of the wheels being off a little bit will cause all kinds of tracking/running issues. (I won't even explain how I know that! ) __________________ WWW.CAFFREYKNIVES.NET Caffreyknives@gmail.com "Every CHOICE has a CONSEQUENCE, and all your CONSEQUENCES are a result of your CHOICES." |
#6
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Hi Ed
Sorry it took a few days to get back to you but have been real busy. Thanks for looking at my idea but I have a few questions. First you said you didin't like this set up from experence. WHY? I don't want to waste time and money if it is not worth it. Second you mentioned havening seen set ups like this before. Can you steer me to those setups so I could compair notes? Third you said you changed your tooling arms to a socket and pin setup. Do you mean you don't change the tooling (arm) just the wheel or attachment on the end??? I could see how this would keep you from having to line up the round tooling arm insert everytime on the BM2 machine. Also I figure as long as I keep the rotating backing plate under 12" it should clear the machine because my 12" wheel clears good. I figure I will build the backing plate out of wood and fit my wheels to it and try it for size and fit before I spend the money to do it out of steel or aluminum. Which brings me to another question. What thickness of steel or aluminum would you use. Do you think aluminum would work as it would bre much lighter. Sorry for all the questions. Thanks MoblMec |
#7
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Quote:
Quote:
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If your going to use aluminum, go with at least 1/2" thick for rigidity.....with steel you could likely get away with 3/8" thickness. The placement of the "pin" on the attachment is critical, and you must completely think through the exact spot you place it....otherwise some part of the attachment are usable, and others are not. __________________ WWW.CAFFREYKNIVES.NET Caffreyknives@gmail.com "Every CHOICE has a CONSEQUENCE, and all your CONSEQUENCES are a result of your CHOICES." |
#8
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Thanks for your time Ed maybe I will go the rout you did with just changeing the wheels on the end of the arm.
Thanks MoblMec |
Tags |
back, bee, build, chain, design, grinding, make, steel, wood |
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