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  #61  
Old Mon 23 July 2007, 02:42
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Quote:
Originally Posted by J.R. Hatcher View Post
My main concern is the possibility of movement during the reduced holding current issue with the geckos.
We have run those very same motors for a long time under Geckos - there is no "reduced holding current issue". It works fine. Mike_R is the one having a concern with reduced holding currents, but he uses totally different motors and controllers (his are with encoders and behave closed-loop). Our experience is 100% okay on the holding torque of those particular motors used direct-drive while Geckos give them the (optional) reduced current. The reason I swing towards reduction/gears these days is to improve the slight chatter on curves - it has nothing to do with holding torque.

File renaming is fine. Just watch that you don't chew up your 3 MB of total allocated file space on this forum. (you can go back and delete files to free up space).
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  #62  
Old Mon 23 July 2007, 07:36
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
Thanks Gerald,

Whew, I thought I had missed something about the motors. I went with the SG7.2 geared motors and the G203V drives. Mainly because Doc Tanner was using them and the performance was good. Also, chatter marks is something I don't want.

J.R. Thanks for the photos. They really help allot.

Greg
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  #63  
Old Mon 23 July 2007, 13:58
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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This is the link to the Excel spreadsheet for parts in the US. http://www.msnusers.com/ncmechmate/d...nw?fc_a=0&fc_p=
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  #64  
Old Tue 24 July 2007, 10:33
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Gerald this was my original plan, to run EMT conduit from the X track around the corner to the Y track. These compression connectors make it very stout. I kept the conduit to the right side of the X bracket so I could drill a hole on the left to accommodate the wires for the X motors. I'm thinking about running the 120 AC line for the router with the dust collector pipe (completely away from all other wires) or just tie wrap it to the outside of the conduit. All suggestions are welcome. thanks
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File Type: jpg MVC-032S.JPG (36.7 KB, 5451 views)

Last edited by J.R. Hatcher; Tue 24 July 2007 at 10:46.. Reason: added notes
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  #65  
Old Tue 24 July 2007, 10:53
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Remember that the conduit must take 5 cables (z-motor, y-motor, E-stop, pushbuttons, ground) - 6 cables if the router/spindle is included - 7 cables if the spindle has a fan and thermistor.
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  #66  
Old Tue 24 July 2007, 12:15
Hugo Carradini
Just call me: Hugo
 
Pto. Ordaz
Venezuela
Congratulations J.R . It is a challenge to post pictures after looking at yours. Nice detail work. Very inspiring work.
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  #67  
Old Tue 24 July 2007, 15:38
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Now to finish what I was trying to say in post 64. I kept the conduit to the right on the X bracket so I could put another one to the left when Gerald realized the one was not going to accommodate all the wires needed. I never thought I would need that many wires. Thanks for catching that Gerald.

Thank you Hugo for the encouraging words.
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File Type: jpg MVC-034S.JPG (37.5 KB, 5431 views)
File Type: jpg MVC-035S.JPG (36.8 KB, 5440 views)
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  #68  
Old Tue 24 July 2007, 21:51
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
J.R.

I have to agree with Hugo, you do such nice work, its hard to post pictures. Actually, your high quality work is making me step it up a notch.

Thanks for the photo's, they will help with my fabrication.

Greg
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  #69  
Old Wed 25 July 2007, 15:22
extremecanvas
Just call me: canvas
 
baton rouge
United States of America
j.r,
im a newbie and was looking at cncs and am thinking of building the 4'x8' mechmate. What do you think your total cost will be inthe end?
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  #70  
Old Thu 26 July 2007, 16:47
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Picked up my white MechMate vinyl letters today, 2 pcs 2 1/2" (63) high and 3 pcs 1 1/4" (32) high US $10. I had to convert the DXF file to a PLT file. It would have been a lot easier if I could have converted it as a CDR file (Corel). If someone would do this I think it will help. Thanks

(Logo discussion moved here - Gerald)
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  #71  
Old Mon 30 July 2007, 12:01
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Did I tell you guy's about my spray booth, it's has the best ventilation system ever.
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File Type: jpg MVC-012S.JPG (52.6 KB, 5327 views)
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  #72  
Old Mon 30 July 2007, 13:17
Marc Shlaes
Just call me: Marc
 
Cleveland, OH
United States of America
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So, J.R.,

Tell us how many guys it took to get it out there?

I'm betting you scooted under there to paint the inside. Gulp... Be careful!

P.S. You sure are cruising! You are going to be cutting soon it looks like.

Last edited by Marc Shlaes; Mon 30 July 2007 at 13:32..
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  #73  
Old Mon 30 July 2007, 15:05
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Don't forget you asked.
I didn't have any help of any kind. I moved the beast from inside the shop in the background (down the steps) put it on the saw horses and washed it down with degreaser, flipped it over and washed the inside. I then took it from the saw horses and set it up on the cans and sprayed 2 coats of Ford Tractor Blue paint on it. If I had to do it again I would give some serious consideration to the possibility of taking it apart.
It's all true except I did have it taken apart (4 pieces).
I will have to say my back felt better yesterday morning than it does right now. And for all those smarties out there I'm 57 and I got all the children I want, Thank You. PS I am going to wait for my son to come over and help take it back in the shop (taking it back in is different than throwing it out).
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  #74  
Old Tue 31 July 2007, 09:46
Hugo Carradini
Just call me: Hugo
 
Pto. Ordaz
Venezuela
Hello "super" J.R My back hurts just thinking you move that by your self.
¿Can you tell me where you buy your cable tracks and specifications of the track?
Thanks
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  #75  
Old Tue 31 July 2007, 10:02
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Hugo, do you have Microsoft Excel (spreadsheet)?
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  #76  
Old Tue 31 July 2007, 10:10
Hugo Carradini
Just call me: Hugo
 
Pto. Ordaz
Venezuela
Hello JR. Yes, I usually work with excel.
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  #77  
Old Tue 31 July 2007, 14:52
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Hugo go to http://www.msnusers.com/ncmechmate/d...nw?fc_a=0&fc_p= there you will see a link to a spreadsheet, the info about the cable chain is in it, lines 13, 14, 16, 17. thanks J.R. ps when I double click the spreadsheet link it opens up.

Last edited by J.R. Hatcher; Tue 31 July 2007 at 14:55..
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  #78  
Old Wed 01 August 2007, 18:32
Hugo Carradini
Just call me: Hugo
 
Pto. Ordaz
Venezuela
Hello J.R
I open the spread sheet but there is no specific information about the cable track. Just gives McMaster address . ¿What am I missing?
Thanks
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  #79  
Old Wed 01 August 2007, 18:36
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Hugo, keep going to the right the spreadsheet goes all the way to column J.
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  #80  
Old Wed 01 August 2007, 18:39
Hugo Carradini
Just call me: Hugo
 
Pto. Ordaz
Venezuela
Upssss.
Thanks, got it
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  #81  
Old Tue 07 August 2007, 13:26
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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I'm waiting for the router mounting brackets (need to bore holes in plate) so I can attach the Z.
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  #82  
Old Tue 07 August 2007, 14:19
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
That's what a Ford tractor should look like!
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  #83  
Old Tue 07 August 2007, 14:20
Charlie
Just call me: Charlie
 
UT
United States of America
Very Nice. I like your conduit.
That is a great looking machine.
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  #84  
Old Tue 07 August 2007, 14:40
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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Yea Gerald, I can hardly wait to do some plowing .... I meant to say some routing. Thanks for the kind words Charlie.

Last edited by J.R. Hatcher; Tue 07 August 2007 at 14:42..
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  #85  
Old Tue 07 August 2007, 14:50
Marc Shlaes
Just call me: Marc
 
Cleveland, OH
United States of America
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J.R.,

Whose bracket are you buying?
As an FYI - I wrote the folks from the company that makes the Porter Cable tool changer system because I believe that I would like to end up with some type of tool changer. The backplate of their bracket is 3.75 inches wide so I believe it could work. Spindle tool changers are so darn much money and they have a system that is at least in the financial ballpark.
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  #86  
Old Tue 07 August 2007, 20:35
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
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I was talking with a local machine shop, but they just took a 2 week vacation. It will workout somehow.
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  #87  
Old Wed 08 August 2007, 01:18
Alan_c
Just call me: Alan (#11)
 
Cape Town (Western Cape)
South Africa
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Congrats J.R. that looks beautiful - the target keeps getting higher...
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  #88  
Old Wed 08 August 2007, 05:08
J.R. Hatcher
Just call me: J.R. #4
 
Wilmington, North Carolina
United States of America
Send a message via Skype™ to J.R. Hatcher
Thanks Alan. I like the look of that control box you have put together. I'll borrow some of your ideas and need some pointers when I start mine.
I get more from a good picture than from an instruction book most of the time, but there is nothing like getting help from someone who has been there done that. So everyone please "keep those cameras rolling" and keep that information flowing.
Not any one of us is as smart or as good as all of us. Everyone has ideas or information to contribute.
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  #89  
Old Wed 08 August 2007, 07:32
Greg J
Just call me: Greg #13
 
Hagerman, New Mexico
United States of America
J.R.

WOW, that is one beautiful beast. My wife actually called it a work of art!!

Its getting hard for me to stay patient and not rush things, but with the high quality of work everyone is doing, I'll take my time and do the MachMate justice.

Nice work guy
Greg
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  #90  
Old Wed 08 August 2007, 08:35
Hugo Carradini
Just call me: Hugo
 
Pto. Ordaz
Venezuela
Inspiring, very inspiring. All so you really contribute with a nice collection of good pictures. Hope we can see soon your first cuts.
Congratulations.
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