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  #1  
Old Thu 04 March 2010, 12:11
Drad98_98
Just call me: Dave #52
 
Fort Ripley, MN
United States of America
Finishing the gear reduction units

Pulled these posts from here:

http://www.mechmate.com/forums/showt...4&postcount=62



Here are a couple pics of the gear drive units, finished the z stage be done with the others soon, waiting on bearings. I got these from metelhead, I believe they are based on choppers design. I still have to trim the shaft down but I want to get it mounted before I cut it to the correct length.
Attached Images
File Type: jpg My Pix 032.jpg (113.9 KB, 991 views)
File Type: jpg My Pix 033.jpg (111.9 KB, 989 views)
File Type: jpg My Pix 034.jpg (111.3 KB, 987 views)
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  #2  
Old Thu 04 March 2010, 12:16
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Nicely done Dave!
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  #3  
Old Thu 04 March 2010, 17:14
Drad98_98
Just call me: Dave #52
 
Fort Ripley, MN
United States of America
Gear reductions

Here are a couple side shots for you Mike. I will email you some pics of the mods done to the y plate, pretty minor.
Attached Images
File Type: jpg My Pix 040.jpg (113.8 KB, 986 views)
File Type: jpg My Pix 041.jpg (113.8 KB, 986 views)
File Type: jpg My Pix 042.jpg (116.0 KB, 983 views)
File Type: jpg My Pix 044.jpg (116.7 KB, 982 views)
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  #4  
Old Thu 04 March 2010, 17:50
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Did you press fit the bearings? Do you think the shaft could use a grove and a C-Clip or maybe even drill and tap the shaft and put a retaining screw and washer in?

How close are the two pullies? Could we use a little longer belt?

Looks great!! I'll take a look at my email.
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  #5  
Old Thu 04 March 2010, 17:53
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Million thoughts in my head. If you flip the pulleys wouldn't it make the motor pulley closer to the motor thus reducing the lateral pressure on the motor shaft?
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  #6  
Old Thu 04 March 2010, 17:54
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Oh yeah and in the spirit of King Moderator .... Nice Pepsi machine !!!
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  #7  
Old Sun 07 March 2010, 18:51
Drad98_98
Just call me: Dave #52
 
Fort Ripley, MN
United States of America
It is a cutting working machine!!

Finished up most of the hookups last night, today we wired the router, soft start and all the E-stops. Cut my first part tonight, uploading video as I write. I will link the youtube as soon as it load. Thanks everyone who followed this build with special thanks to RadRacer #25 (my brother) who helped alot throughout this build and especially this weekend hooking up all the electronics. And thanks to Metalhead(Mike) for the help with the various parts, really appreciate that. I will continue to post stuff as I make it, love to show off the machine and the product it produces.
Attached Images
File Type: jpg DSC01928.JPG (156.4 KB, 979 views)
File Type: jpg DSC01929.JPG (149.1 KB, 977 views)
File Type: jpg DSC01933.JPG (149.9 KB, 976 views)
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  #8  
Old Mon 08 March 2010, 21:43
Drad98_98
Just call me: Dave #52
 
Fort Ripley, MN
United States of America
Bum,
I used cold roll 1/2" rod, milled a flat on it for the set screws to "bite" on. As far as the belt and pulleys, I got them from Standard Drive Products. www.sdp-si.com
Belt (4)- A 6B 3-080037
Driven Pulley (4) - A 6A 3-72NF03716
Drive Pulley (4) -A 6A 3-18H3716
Bearings (8) I got from Rick at Superior Bearing, part number FR8.
Let me know if you have any more questions and thanks.
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  #9  
Old Sat 20 November 2010, 10:25
chris saintdenis
Just call me: chris
 
detroit, mi
United States of America
Belt Drive Plates

For the MetalHead Gear Drive Plates where and how do the FR8 flange bearings come into play?

I figure you need to use 2 FR8 bearings for each of the four drives required in the Mechmate design so that why you need to order a quantity of 8 total FR8 bearings.

It seems that the 1/2 inch rod mounted with the SDP Driven Pulley A 6A 3-72NF03716 spins in the FR8 flange bearings.

Are the FR8 Flange Bearing press fit into the Gear Drive Plates with the flange facing toward the SDP Driven Pulley A 6A 3-72NF03716?

Thanks
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  #10  
Old Sat 20 November 2010, 13:16
Drad98_98
Just call me: Dave #52
 
Fort Ripley, MN
United States of America
Chris,
You are 100% right on all accounts, the bearings (2 per drive)are press fit into the drive plates with the flange facing the pulleys. I got the prototypes from Mike and the holes were a bit big so I had to epoxy mine in, I am sure he has this fixed now. I can get you the parts list needed for the dives if you like, like pulleys, belts etc..
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  #11  
Old Sat 20 November 2010, 17:13
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Dave,
I would be interested in your parts list for this as well.
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  #12  
Old Sat 20 November 2010, 17:53
Drad98_98
Just call me: Dave #52
 
Fort Ripley, MN
United States of America
Heath,
Parts are as follows:
From Stock Drive Products http://www.sdp-si.com/
Timing Belt: A 6B 3-080037
Pulleys: A 6A 3-72NF03716
A 6A 3-18H3716
From VXB Bearing http://www.vxb.com/page/bearings/PRO...FQS7KgodehH6aA
8 1616 ZZ Bearings (the link above is for a lot of 10 bearings, cheaper when I bought them, you can get the bearings anywhere same part number
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  #13  
Old Sat 20 November 2010, 17:55
Drad98_98
Just call me: Dave #52
 
Fort Ripley, MN
United States of America
Oops, you need 4 of each pulley and I bought 5 belts, 1 spare.
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  #14  
Old Sat 20 November 2010, 20:49
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Dave,
Sorry, maybe Im tired tonight, but are those bearings you referenced flange bearings that you were talking about in the earlier post? The pic at vxb looks like regular bearings with no flange.
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  #15  
Old Sun 21 November 2010, 08:05
chris saintdenis
Just call me: chris
 
detroit, mi
United States of America
Thanks Dave for the reassurance and for the part information!!
I was wondering the same thing about those VXB bearings.


I received the MetalHead Drive plates yesterday and an email explaining:


"You will see 5 metal rings in with the motor plates. These allow you to use flange bearing if you want. Or you can go at it like Chopper did and make busings to hold the bearings."



From that I am assuming you could either tack weld the rings into the one odd drive plate and press fit the flange bearings or you can turn you own bushing on a metal lathe, toss the metal rings, use the VXB bearings.

Thanks for your time, more questions to follow but I need to do a little
research first!
Attached Images
File Type: jpg metalhead drive plates 1.jpg (38.4 KB, 977 views)
File Type: jpg metalhead drive plates 2.jpg (30.5 KB, 976 views)
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  #16  
Old Sun 21 November 2010, 08:26
chris saintdenis
Just call me: chris
 
detroit, mi
United States of America
Dave,

Sorry,to hijack your build thread by asking all these Drive Plate Questions.

Started a new thread


While gathering information about the MetalHead Drive Plates in the Common Assemblies & Parts thread:
"Driving Mechanisms: Rack/pinion, gears, screws, belts & chains"

I stumble on Art's thread:
"What's the current state of the art timing belt gear reduction. "

In Art's thread MetalHead links your build thread, it seems you helped in the proving out the drive plate design and your images of the assembled drive are great..

Thanks you both for you efforts!!
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  #17  
Old Sun 21 November 2010, 09:05
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
I pulled this info into a new thread since it is a good topic.

The rings were provided based on the feedback I got from Dave on his build.

I am sure later models of the plates will have the smaller hole and only use the beadings Dave has refrenced. But for the existing sets i had these flanges built to give folks a few more options.

I have more of these "fillers" if others want them for their sets. Just PM me.
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  #18  
Old Sun 21 November 2010, 09:07
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Dave if you were doing these again, would you get belts a few MM longer?
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