2" x 72" Belt Grinder kit $369.99

Perhaps a voluntary donation to the site would be appropriate for use of the plans. Kind of a shareware usage.

Eric
 
There is nothing wrong with the open source drawings. I have built my own KMG from them and appreciate the effort put forth for those of us that have used them for our clones. I do not believe that it is a bad thing to have more than 1-2 designs to choose from.

My own .02 anyway..
 
Ahh sorry Chris.... yeah it's a NWG but the plans would save a lot of effort, just do some mods to the plans to get them to where y'all want them.
 
Guys lets not get money in this. Sure I would like some of the $$$ I lost back, but I'd rather have the plans free to everyone, and the story as to what happened sent with every plan. This way everyone knows why.
 
Porter
Can you do me a favor and tell me whether or not your motor is a face mount type. If it is let me know the spacing between the bolts. I would like to make this for a face type motor and need to know if yours is the same as mine.
Chris

5 and 7/8 inches is the bolt circle diameter with the bolt holes starting at 45 degrees from 12 o'clock and then 3 more at 90 dgress apart. All 56 frame C face motors have this pattern
 
Porter
Thanks thats just what I needed, here is how it looks now. I have changed it up quite a bit but she is pretty close now to being finished. I actually plan to not put the bottom plate on now and just use the feet on my motor bolted to my workbench. I think it should work, we will see.
Hopfully get these parts lasered late this week or next week and assemble within a day or so. Should go together quickly, I figure this should only be a half a day project or so once all parts are in hand.
Chris
 

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I plan to now use a 56c face mounted motor exclusively.
Chris
PS If your with me say Aye

Aye

I like the idea of 56C facemount with VFD and eliminating the pullies.


The Baldor motor site is a great resource.
Although you likely have all the measurements you need, I thought I would put this here for everyone else. Sometimes it's nice to see a drawing.

56C motor mount drawing specs.

http://www.baldor.com/DMS/documents/35LYT942.pdf?url=http%253a%252f%252fdmshq02%253a1095%252f%252fCache%252fCSProxyCache.dll%253fget%2526forward%253dhqdms%25253A1090%25252FContentServer%25252FContentServer.dll%25253F%2526pVersion%253d0046%2526contRep%253dZMARKETING%2526docId%253d459AE53ABFF901A7E10000002047AF91%2526compId%253d35LYT942.pdf
 
the option to mount pulleys still needs to be there IMO. Not everyone can afford a VFD and 3ph motor, or has that power hook up.
 
Are you talking about carrying the entire weight and vibration of the machine with just a motor mount plate?

If that's the case, then it will not be rigid enough.

I might just be misinterpreting this though :)
 
Am I reading the images correctly that everything is cut out of .5" steel plate?
using 1.5" tool arms?

it looks like a very simple grinder and if measure plans become available, I'd certainly be interested in gettng them.

would having these water cut be acceptable? I know that at a certain point water cutting tends to get less smooth, but I don't recall what thickness that is. based on the parts it really seems like it would be possible to use a section of plate very efficiently with this design, with the appropraite placement of the individual parts on the cutting system
 
Are you talking about carrying the entire weight and vibration of the machine with just a motor mount plate?

If that's the case, then it will not be rigid enough.

I might just be misinterpreting this though :)

Mr Wheeler is correct.

Also, not all c-face motors have a base so your limiting motor choices by not having a base incorporated into the grinder.
 
Well at least we are talking now, I am not married to any one idea and am flexible on this design. This is afterall our design, I am merely the draftsman.

So having said that 12345, the link is perfect and very helpful. Thanks I will put the motor foot on the drawing tonight and ensure my hole spacing is correct.
Therron258, While I did come up with an option to do the three step pulleys it is not something I am proud enough of yet to post. I also am wondering if just making it exclusively a face mounted grinder might not be the smartest way. One can after all just buy a 110v face mount motor, only downside is it is just one speed (But so is my bader b3).

Nickwheeler, while logic and common sense would say you are correct my bader b3 says something different. It has the casting mounted to the face of the motor and the motor is bolted down to a plate. Which is what gave me the idea. For those who opt not to bolt down by the motor, the bottom plate will still be part of the design. I am just opting not to use it. If one opted to use it they would just get the motor without the feet or have the feet facing the rear of the machine and use the grinders bottom plate.
Kindyr Yes this design would lend itself to either water jet cutting or laser cutting. You will get some slight draft with water jet cutting but it would not be bad I dont beleive.
Keep the ideas coming, I will post updated drawings later tonight.
Photo of Bader below to show what I was referencing earlier, I lifted photo off of Google.
PS You will notice the small bar of steel off of the bader casting to the floorplate, I believe that is to negate the grinder from rocking or dipping on startup stressing the motor face.
 

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Alright here is where we are at right now. While the bottom plate is on this photo you can see it will not be doing anything and when I have my parts cut I plan to omit creating this part. I am mostly doing this in an attempt to make this grinder as lean and mean as is possible, er I mean cheap.
I will have the bottom plate as part of this package though, the individual can decide whether or not they choose to use it.
Hopefully when I put this together I can relate whether or not this was a good or bad idea.
Ok look at the sideshot, I recently made the upper arm longer than it was in the beginning so that one could either put a 3 inch coil spring between the tooling arm box and upper arm(Like a KMG)(option1). Or one could put a spring like the one on your screened in door at the end of the upper arm to the body of the grinder(Option 2). Tell me what you guys are thinking, I dont like the idea of the long rear spring because it would prohibit the tooling arm going to far to the rear, but maybe leaving the option viable is a good choice.
Keep the ideas flowing, I only want to have to cut this thing once to call it done.
Chris
 

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If you have the motor bolted onto a designated steel plate with the support leg like the BIII then I think it will be just fine.

If it's screwed down to a 2X4 off the end of somebody's wooden bench (like you know most folks will do) without any kind of extra support leg, then this just seems like an awful big load on a motor mount without the rigidity to make it run optimally... But maybe not.

It's cool to see you guys pulling together after seeing the thread go downhill so bad. :)
 
forgive the dumb question....

my motor didn't come with the base plate it was supposed to. but it does have threaded holes on the face. is this motor going to work or am i going to need to a base plate or something to help support the motor?

my confusion comes from the recent posts.

again forgive my ignorance!

Jake
 
No a face mount motor with no base plate will work fine. You will just have to have the bottom plate cut and use it to mount the grinder to your workbench.
I am attempting to not cut one part in an attempt to save money, IE THe big plate in the last set of photos is wood.
Chris
 
Yea good point Nick, guess my big plate will now be 1/4 steel plate. I have a feeling its the starting torque of the motor that would reek havok on a face mounted design.
Chris
 
Ok look at the sideshot, I recently made the upper arm longer than it was in the beginning so that one could either put a 3 inch coil spring between the tooling arm box and upper arm(Like a KMG)(option1).

That's a Compression Spring

Or one could put a spring like the one on your screened in door at the end of the upper arm to the body of the grinder(Option 2).

That's an Extension Spring


Tell me what you guys are thinking, I dont like the idea of the long rear spring because it would prohibit the tooling arm going to far to the rear, but maybe leaving the option viable is a good choice.

In keeping the greatest flexibility of design, I say leave the arm long for both options.
The end user can see the possibilities of both designs and choose for themselves based upon the supplies they have available to them.

If they find that it is too long, they can always hacksaw it off pretty easily.



Seeing Adam-Micheal name here makes me think MAP ARM !


http://www.bladeforums.com/forums/showthread.php?t=466024

As I look at this design, I have pictured doubling up on the parts that create the tooling arm receiver tube to create a second parallel tooling arm to the left of the origional.

On the MAP ARM, how far apart do these two channels have to be?

A.jpg
 
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so if i have this right. i will have to do the big steel base plate because i dont have a bracket to secure the motor to a wooden base or bench. and because of the torq an d weight etc. the steel base plate will keep it up right?

again sorry if this is just too dumb

jake
 
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