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  #31  
Old Sun 09 November 2008, 21:44
Marc Shlaes
Just call me: Marc
 
Cleveland, OH
United States of America
Send a message via Skype™ to Marc Shlaes
Take care and don't overdo it. Good luck.
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  #32  
Old Sun 09 November 2008, 22:21
gmessler
Just call me: Greg #15
 
Chicago IL
United States of America
Welcome back Vishnu!

hope you have a speedy recovery.
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  #33  
Old Mon 10 November 2008, 07:36
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Vishnu,
Glad to hear you are recovering. Get well, the Mechmate needs you.
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  #34  
Old Mon 10 November 2008, 09:44
javeria
Just call me: Irfan #33
 
Bangalore
India
Hi Vishnu - I need you too man - I will hold the mechanicals till u get alright and come to Bangalore.

Get well soon Buddy.

RGDS
Irfan
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  #35  
Old Fri 05 December 2008, 11:07
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Started Building My Beautiful Beast

Hi Folks,

Seeing you all after a long break. have fully recovered and back to work for the last 10 days. The result of 1 hour of work every day is post as pics. Would like to hear some comments. In the second pic the close up of the Rail after cutting only bolted at the ends have to continue tommorow.
Attached Images
File Type: jpg IMG_0834.JPG (84.5 KB, 1452 views)
File Type: jpg IMG_0835.JPG (48.6 KB, 1450 views)
File Type: jpg IMG_0836.JPG (85.7 KB, 1449 views)
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  #36  
Old Fri 05 December 2008, 11:13
hennie
Just call me: Hennie #23
 
Roodepoort JHB
South Africa
It`s Not Blue:d
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  #37  
Old Fri 05 December 2008, 11:45
gmessler
Just call me: Greg #15
 
Chicago IL
United States of America
Hi Vishnu,

Glad to see that you're back.

Looks like you're making progress.

I see that you cut the rails to length. Don't forget that the skate cannot grind all the way to the ends of the rails.
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  #38  
Old Thu 25 December 2008, 10:10
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Spindles & motors arrived

At last i have received the spindle & motors, they are from Dietec and shipped directly from Hongkong, just took 4 days to arrive.
Attached Images
File Type: jpg IMG_0844.jpg (28.3 KB, 1401 views)
File Type: jpg IMG_0850.jpg (27.5 KB, 1405 views)
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  #39  
Old Thu 25 December 2008, 10:15
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
With my buddy

Here is a pic of my buddy Irfan on the right & me on the left with irfans machine on the background at Bangalore. He has already completed the controllers and i have just started my kitchen table project, will post pis shortly.
Attached Images
File Type: jpg IMG_0841.jpg (65.0 KB, 1413 views)
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  #40  
Old Thu 25 December 2008, 10:48
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Vishnu, that spindle looks really good! Cant wait to see that cutting.
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  #41  
Old Sat 27 December 2008, 19:04
Mongkol
Just call me: Ton
 
Bangkok
Thailand
Smile Your project looks great

Hi Vishu,
Your project looks fine. It challenge your ability.
I like your spindle motor. Could you advise me what website can I order this spindle motor ?

Mongkol
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  #42  
Old Sun 28 December 2008, 10:45
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Hi Ton,

Thanks for the comments, Wait for a couple of weeks so i can exactly post enough feedback of the spindle. Irfan & me wanted to try a low cost asian spindle due to budget constraints, hope it will do fine. Planning to start a new thread at the earliest. I have started to grind the X rails and its almost complete and my kitchen table project is 50% done. I am in a hurry to finish i have fell back from my schedule by a month due to sickness Love to see my Mechmate rolling............
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  #43  
Old Sun 11 January 2009, 10:26
Nikonauts
Just call me: Nikonauts
 
Johore
Malaysia
that table looks like it needs a good amount of loving/sanding.
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  #44  
Old Mon 12 January 2009, 10:54
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Hi Nik,

Thats the colour of the primer commonly available at our city, its bit dull red so thats looks like rust to you.
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  #45  
Old Mon 12 January 2009, 11:00
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
I think that is the classic "red lead" primer that is still the best performing, but the word "lead" makes people scared today.
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  #46  
Old Mon 12 January 2009, 12:11
Alan_c
Just call me: Alan (#11)
 
Cape Town (Western Cape)
South Africa
Send a message via Skype™ to Alan_c
Also known as Red Oxide (less scary??)
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  #47  
Old Mon 12 January 2009, 12:35
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Not quite the same. Red lead has lead tetroxide, while today's red oxide paint has no lead content. Red oxide can be a water based paint, red lead repelled water. Or something like that . . . .
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  #48  
Old Fri 23 January 2009, 02:40
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Help me in wiring these Motors

My steppers are of Model 86HS4802 8 wire motors. Please help me out which would be the best way of wiring these to my Gecko 203 drives. My toroids are rated at 1050 VA 39V @ 27A. The specs are given below.
Attached Images
File Type: jpg NEMA34 MOTOR_Page_2.jpg (58.7 KB, 1210 views)
File Type: jpg NEMA34 MOTOR_Page_1.jpg (49.8 KB, 1208 views)
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  #49  
Old Fri 23 January 2009, 02:54
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
If you rectify the transformer's 39V AC, you will get 55V DC

The motor coil inductance is 3.2mH. The Mariss formula says you can go to 57V DC for half-coil. So you have a good match for half-coil.

Insulate each of the blue, black, brown and green wires.

Connect:
red - terminal 3 on gecko
yellow - terminal 4 on gecko
white - terminal 5 on gecko
orange - terminal 6 on gecko

Put a 120k resistor (1/4-watt minimum) across the geckos terminals 11 & 12 to limit motor current to 5 Amps
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  #50  
Old Fri 23 January 2009, 03:08
Lex
Just call me: Johan #56
 
Empangeni KwaZuluNatal
South Africa
Hi Gerald,
I am about to connect my motors i.a.w. the bi-polar sketch on the right. Yel-Blu & red-Grn. The way that you advice Vishnu look to be bi-polar as well. Why do the manufacture give us two bi-polar options here? Will your option be the better one?
Wonder which way Kobus did his?
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  #51  
Old Fri 23 January 2009, 07:06
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Johan, has your motor got 8 wires or 4 wires? that decides the left or right diagram.
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  #52  
Old Sun 25 January 2009, 11:13
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Motors Moving

Hi Folks,

Finally today my buddy Irfan came down to my place and we powered up my control panel and finally had the motor turning. The motors from Deitech are really good & powerful. I have completed welding the gantry & Y car last week and started working on the Z axis.

Here is the video of my motors turning.

http://in.youtube.com/watch?v=H6Q5uEwROm8
Attached Images
File Type: jpg IMG_0975.jpg (56.4 KB, 1167 views)
File Type: jpg IMG_0987.jpg (53.5 KB, 1169 views)
File Type: jpg IMG_0976.jpg (47.9 KB, 1164 views)
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  #53  
Old Sun 25 January 2009, 11:28
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Well done Vishnu & Irfan!
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  #54  
Old Sun 25 January 2009, 22:58
Nikonauts
Just call me: Nikonauts
 
Johore
Malaysia
wow, that is one big controller box.

now that the table is ready, motors turning, it must feel very itchy not to get them done, aite?

syabas inspektor sahab, syabas!
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  #55  
Old Mon 26 January 2009, 05:39
javeria
Just call me: Irfan #33
 
Bangalore
India
Things vishnu did not talk about -

1. I got to know the reason behind Vishnu getting Dengue fever - a swarm of mosquitoes which feel free to enter and entertain people in and around vishnu's workshop.

2. Two connectors placed metal facing each other (live and neutral) almost burnt some wires - but since it was before the contactor much damage was averted.

3. Thin wires on the parallel port cables giving us the creeps.

4. Creating a new profile not working with Mach, had to use the regular Mach Mill profile to get the motors moving - may be we are missing something here.

Overall a fruitful visit - he vishnu dude thanks for the great Lunch - hope you overcome all your problems and wrok thru to get our Mecmates rocking fast.

I can almost see the light at the end of the tunnel

RGDS
Irfan
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  #56  
Old Sun 01 February 2009, 09:26
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Hi,

Its been a week since the completion of "Kitchen table Project", this week i have completed the welding the Gantry, Y Car & cable track supports. I will have the gear box plates machined by tommorow will be spending to finsh and nount the motors. The problem with the V wheels i have started to make new ones since the previous wheels had only 70 deg instead of 90 deg. Will post pics tommorow. I am rushing up this week so i have the Beast running by next week end.


Vishnu
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  #57  
Old Thu 12 February 2009, 06:47
javeria
Just call me: Irfan #33
 
Bangalore
India
hey dude where is the video of the gantry moving man - its not official unless we watch it

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  #58  
Old Mon 16 March 2009, 12:21
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Hi,

I have almost got off track for the last couple of months due to the orders received for machining and also had some spare time for the mechmate. So guys here is the update on the build.

1. Completed all of the base frame, Gantry.
2. partially completed 1'st cost of paint.
3. Getting ready with the gear box.
4. Z - axis to be completed by week end.

Sorry guys no pics of my machine as my camera is out of order on my mobile, i will have to carry the camera tommorow to post some pics. I plan to complete and have a trial run by this week end. Irfan is grinding the rails & once i complete the gearbox i am sending him so he will get things moving. Hope we both start running the machine in a weeks time.

Vishnu
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  #59  
Old Wed 18 March 2009, 11:10
javeria
Just call me: Irfan #33
 
Bangalore
India
ok SIR - I have a nobel prize ready for you - the one for doing things late

where are Pictures -
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  #60  
Old Thu 19 March 2009, 10:58
javeria
Just call me: Irfan #33
 
Bangalore
India
its 10.27PM where are the pics MR.
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