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  #1  
Old Sun 30 November 2008, 07:52
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Added belt transmissions #16 - Demotte, IN

After looking at my laser-cut parts and other parts all summer, I finally picked up my steel for my table. I'm planning on a 50" x 120" machine. Steel was a little more than I figured, but I was told that it had gone down in price.

I have already purchased:
rack and pinions
v-bearings
steppers
drives
controller
power supply
cable chains
router
router bracket


Mike Yozman
Attached Images
File Type: jpg Steel small.jpg (70.1 KB, 1519 views)
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  #2  
Old Sun 30 November 2008, 11:47
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Okay Mike, you have our attention now!
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  #3  
Old Sun 30 November 2008, 16:21
robertmonroe
Just call me: Robert
 
El Paso
United States of America
Oh yeah that steel looks good!
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  #4  
Old Mon 01 December 2008, 16:05
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Had a few hours to mess around

It's funny how you just can't leave a pile of steel alone. I took a little longer for lunch than usual.

Note: Not a good idea to put together upside down and turn it over by yourself. Not as young as I used to be, just think I am. Nothing like a clean and jerk of the table. She's upright now.

MIKE
Attached Images
File Type: jpg table 1.jpg (113.5 KB, 1470 views)
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  #5  
Old Mon 01 December 2008, 20:02
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Okay, that was the easy part.

Must say that a big frame standing in the garage like that is a big motivator to keep going and get finished.
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  #6  
Old Mon 01 December 2008, 20:46
kanankeban
Just call me: Hector #89
 
Monterrey
Mexico
Hi Mike,
Nice Table,what size are you going for?
Did you bolt or weld the cross bearers?
And finally what's the size of the profile used for the main beams?
Regards,
Hector
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  #7  
Old Tue 02 December 2008, 04:38
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Quote:
Originally Posted by kanankeban View Post
Hi Mike,
Nice Table,what size are you going for?
Did you bolt or weld the cross bearers?
And finally what's the size of the profile used for the main beams?
Regards,
Hector
Hector,

The table is going to be 50" x 120". The cross bearers are bolted, but once everything is squared, I'll lay a weld on them. The main beams are 8" channel.
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  #8  
Old Tue 02 December 2008, 04:44
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Quote:
Originally Posted by Gerald D View Post
Okay, that was the easy part.

Must say that a big frame standing in the garage like that is a big motivator to keep going and get finished.
Gerald,

Other than wrestling the stuff to the drill press, It was pretty easy. Will see if I'm still saying that after I cut down and grind the angles. I'm going to give it a go this week with the angles.

It takes up to much space to be ignored now.

MIKE
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  #9  
Old Sat 06 December 2008, 13:28
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
I cut the rails with a tct blade. I would have never though they would have cut so easy and smooth. I clamped the angles to my main beams, leaving about a quater inch gap between the beam and the angle. I let the guide of the saw ride on top of the angle and the saw hang down the side. Keeping the weight of the saw pulling down to keep the cut as straight as possible. This worked pretty good. Did not have to do to much work to it before grinding.

THe grinding took a little messing with to get it to cut well. Used a new disk on every rail. The whole trick is getting the skate tipped right. The first 12 footer took about 45 minutes, adjusting and figuring it out. The others went alot faster. When changing disks, I had to take the skate apart. I scribed the skate as to put it back where I'd found the sweet spot for me.

I have mounted one side of the X rail with rack, keeping it straight. I need to put the other side on yet.

The part I was dreading the most, The Grinding, actually wasn't as bad as I had thought.

I need to cut and weld the gantry and keep things moving. Will post some pictures when I get a chance.

MIKE
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  #10  
Old Sun 21 December 2008, 18:55
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Gantry and Y-car rolling

I was really hoping to complete more this weekend, But between the freezing rain and loss of electric and now high winds and temps around zero.

Anyway, I hookrd up the generator at the house and one down at the shop. Shop is heated with wood and kerosine(torpedo heater). I managed to get some things done, just slow when it's cold.

I attached rails, welded gantry, and set the y-car. What a great feeling getting the gantry and y-car to roll smoothly. I lucked out and my gantry sat right down on the rails, no adjustment. I took the advise of others and welded it on a tablesaw.

Can't wait to finish the build. It rolls so smooth for being such a big heavy piece of steel. I think I'm a little short on my X cable chain, so I'll have to order more. I also have to get the shielded cables and control enclosure.

Here are a few pictures of the progress.

MIKE
Attached Images
File Type: jpg Gantry1.jpg (156.8 KB, 1344 views)
File Type: jpg Gantry2.jpg (145.1 KB, 1334 views)
File Type: jpg Gantry3.jpg (137.7 KB, 1330 views)
File Type: jpg Gantry and Rails.jpg (139.2 KB, 1323 views)
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  #11  
Old Sun 21 December 2008, 20:31
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Mike,
Your table is looking really good. I know what you mean about the cold, its been -25C here for the last while. Makes working in an unheated garage pointless.
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  #12  
Old Sun 21 December 2008, 23:11
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Nice work Mike. I like your temporary end-stops to prevent the cars from going off the rails.
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  #13  
Old Mon 22 December 2008, 06:07
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
...funny you noticed the end stops. I welded washers on the rails so I would stop driving the skate off and crashing to the floor. I broke 2 cutting disk's just flying off the rail! I like to learn the hard way.
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  #14  
Old Mon 22 December 2008, 06:25
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
David in Taiwan had a big fan going in the workshop . . . . . turned his back on the machine and the gantry blew right off the rails onto the floor.
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  #15  
Old Fri 02 January 2009, 13:31
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Ready to Paint

I'm just about to a point where I'm ready to take the thing apart and prep for paint.

I still have to come up with something for an idler pulley on my Y-car. I'm thinking of using two of the bearings that I used for the skate, in a trolley-like configuration. I also did my stops different, using cutoffs from the rails.

Does there have to be stops on both sides of the gantry? I have only put it on the motor-side, but if I need to, I'll make another.
Attached Images
File Type: jpg table 2.jpg (134.4 KB, 1258 views)
File Type: jpg table 3.jpg (120.8 KB, 1259 views)
File Type: jpg table 4.jpg (153.8 KB, 1247 views)
File Type: jpg table 5.jpg (144.7 KB, 1251 views)
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  #16  
Old Fri 02 January 2009, 16:25
servant74
Just call me: Jack
 
Nashville (Tennessee)
United States of America
Looks great!
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  #17  
Old Fri 02 January 2009, 16:47
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
I wish I would have bought a satin finish paint instead of gloss to hide the flaws.

Maybe that krinkle finish or under coating.
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  #18  
Old Fri 02 January 2009, 17:01
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
Mike,

Looks good. You are making good progress.
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  #19  
Old Fri 02 January 2009, 17:33
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Looks good!

The bearing needed as a roller for the idler/holdown is dicussed here:
Idler holddown roller bearing

Stops are only placed on the motor-side rail of the gantry.
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  #20  
Old Fri 02 January 2009, 20:57
HomeMadeCnc
Just call me: Tim
 
Calgary, Alberta
Canada
Nice job Mike. Don't worry about the paint, the sawdust will hide th flaws!

Tim
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  #21  
Old Tue 13 January 2009, 16:10
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Blue and Motors turning

Painted everything BLUE, received MechMate decals from Joe, Received control wire, Got motors turning. Just need to put everything back together and start cutting.

Can't hardly wait. Was this the fun part for everyone else? I'm really getting excited about finishing. I think I can see the finish line.

MIKE
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  #22  
Old Tue 13 January 2009, 21:49
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Good news Mike! You have me on the edge of my chair dusting off the next serial number!
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  #23  
Old Wed 14 January 2009, 17:44
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Blue Pictures

It was a little cold today to mess around in the shop. To cold to feel the ends of my fingers for motor hook up.

Mike
Attached Images
File Type: jpg New Blue 1.jpg (153.3 KB, 1119 views)
File Type: jpg New Blue 2.jpg (147.2 KB, 1114 views)
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  #24  
Old Wed 14 January 2009, 18:06
kanankeban
Just call me: Hector #89
 
Monterrey
Mexico
Congratulations....that mechmate really looks nice I see your integrated other motors, could you comment on your experience with those....
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  #25  
Old Wed 14 January 2009, 19:31
myozman
Just call me: Mike #16
 
Demotte,IN
United States of America
Hector,

I'm using Keling motors, KL34H295-43-8B. I went with these because of cost. They are direct drive, but I also have the motor plates for geared steppers for future upgrade. They seemed to work fine on the bench, Just need to run them on the machine.


Mike
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  #26  
Old Wed 14 January 2009, 21:48
Kobus_Joubert
Just call me: Kobus #6
 
Riversdale Western Cape
South Africa
Send a message via Yahoo to Kobus_Joubert Send a message via Skype™ to Kobus_Joubert
Amazing to see how these MM's looks mostly the same....if you just follow the plans as supplied...Nice going Mike and I am still happy to used my ungeared motors....for me the thing cuts what I want.
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  #27  
Old Wed 14 January 2009, 22:39
Don_Kellogg
Just call me: Don
 
Kalamazoo, MI
United States of America
Mike that looks awesome.
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  #28  
Old Thu 15 January 2009, 07:10
jeffa
Just call me: Jeff
 
Iowa
United States of America
Mike,

Congratulations. You have built a beautiful machine. Please show us more pictures as you get it up and cutting .


Jeff
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  #29  
Old Thu 15 January 2009, 07:48
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Mike,

Great table. I hope those motors work for you.

I have a mundane question. I see the tops of some rattle paint cans. I like the color. I'm not happy with the "Ford Blue" from Tractor Supply. Looks too dark.

What paint did you use? Did you just use rattle cans or did you also use sprayable/brushable paint. What about hardener?

Regards,
John
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  #30  
Old Thu 15 January 2009, 10:19
sailfl
Just call me: Nils #12
 
Winter Park, FL
United States of America
John,

Buy the rattle cans from Home Depot. They are Safety Blue from Rustoleum. That is the color I used and it is a nice color. I recognized those tops......

I think Lowes has the same color. It is the professional cans.
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