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  #91  
Old Sun 21 December 2008, 14:18
Doug_Ford
Just call me: Doug #3
 
Conway (Arkansas)
United States of America
Congrats Irfan. I'm anxious to see some pictures of your new parts.
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  #92  
Old Mon 22 December 2008, 00:20
CNCQuest
Just call me: WT
 
Quezon City
Philippines
Quote:
Originally Posted by javeria View Post
HI folks, I ordered the Asian spindle today.

cost being 261 USD + shipping - Vishnu also ordered the motors from Deitec, cost was 52USD for 580 OZ motors - we are using a 1:3 reduction - so I think will be sufficient.

the advantage of buying it from deitec was that they are located in Hong Kong and UPS is real cheap than from interior China.

RGDS
IRfan
Congrats, Irfan. Let us know how the Chinese Spindle comes along.

Can you give us the info of the Spindle specs, and the website of Deitec so I can inquire as well from them for my prospective use?

Thanks,
WT
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  #93  
Old Mon 22 December 2008, 11:28
vishnu
Just call me: vishnu
 
Coimbatore(TN)
India
Irfan & me both of us have ordered spindles and i have ordered steppers also. please wait for a week so that we can tell u the quality so our folks can proceed further.

Vishnu
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  #94  
Old Thu 25 December 2008, 11:22
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Hi Irfan & Vishnu, did you guys ever give us a link to Deitec?
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  #95  
Old Thu 25 December 2008, 20:59
javeria
Just call me: Irfan #33
 
Bangalore
India
Its here G' http://www.mechmate.com/forums/showthread.php?t=1196

website is www.driver-motor.com
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  #96  
Old Fri 26 December 2008, 10:31
javeria
Just call me: Irfan #33
 
Bangalore
India
Some Closeups Of Spindleand Vishnus Steeper Moters

hI,
these are some of the pictures which vishnu sent me earlier.i still havent physically touched the spindle yet.

i have a concerns about the motors we ordered for vishnu.these motors are
8 wire motors rated at 5 amps we need help in wiring this to the gecko 203 drive, should we do it half coil or full.this is a bit confusing for us.

RGDS
IRFAN
Attached Images
File Type: jpg 1.jpg (85.5 KB, 1443 views)
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File Type: jpg 3.jpg (43.1 KB, 1442 views)
File Type: jpg 4.jpg (78.9 KB, 1443 views)
File Type: jpg 5.jpg (106.7 KB, 1448 views)
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  #97  
Old Fri 26 December 2008, 11:08
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
The starting point for wiring those motors is to know the coil inductances. A spec sheet will tell all.
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  #98  
Old Wed 31 December 2008, 05:13
javeria
Just call me: Irfan #33
 
Bangalore
India
product pics and vfd.

some pics of the work done on my smaller router.

this is a book rack designed by me -

how I hope the mehmate was working - first I had to cut the 3x8 sheets to the required sizes and then load them on the machine - for the longer parts had to split the toolpath into 2.

also the Delta VFD arrived today - the application engineer here is so friendly and promised to come and help me in my installation.

RGDS
Irfan
Attached Images
File Type: jpg 33.jpg (72.6 KB, 1400 views)
File Type: jpg 34.jpg (59.0 KB, 1392 views)
File Type: jpg 35.jpg (81.2 KB, 1390 views)
File Type: jpg 36.jpg (62.3 KB, 1391 views)
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  #99  
Old Wed 31 December 2008, 07:06
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
Irfan I need that guy's name so I could ask if he will come and help me install one. I like your book case.
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  #100  
Old Wed 31 December 2008, 08:59
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Delta VFD's are fun . . . . . I have gotten 3 different models to drive spindles already. JR, can I come and help you?

Nice "technical" bookcase!
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  #101  
Old Wed 31 December 2008, 10:02
javeria
Just call me: Irfan #33
 
Bangalore
India
Quote:
Originally Posted by J.R. Hatcher View Post
Irfan I need that guy's name so I could ask if he will come and help me install one. I like your book case.
JR, I called up the AE ' he's ready to come - and has a visa ready - he's just waiting for you to send the flight tickets
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  #102  
Old Wed 31 December 2008, 10:09
javeria
Just call me: Irfan #33
 
Bangalore
India
G' I havent got any experience with the VFD, if that front panel removable and can it be placed where comfortable right - anyways I will also look into the manual.

RGDS
IRfan
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  #103  
Old Wed 31 December 2008, 10:23
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Quote:
Originally Posted by javeria View Post
. . . . . . if that front panel removable and can it be placed where comfortable right . . . . .
. . . . . if you purchased the ribbon cable

Normally you would only use the little panel to start / stop the spindle and set its speed, but we start/stop it with the PMDX122 and put another speed control potentiometer on the control box.
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  #104  
Old Wed 31 December 2008, 19:50
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
Gerald I have 2 spare bedrooms. If you would like a holiday to southeastern North Carolina, come on down or rather up.
Irfan Gerald's offer didn't mention flight tickets so I had to go with him, sorry ................. I wonder how much Gerald eats in a week.

Last edited by J.R. Hatcher; Wed 31 December 2008 at 19:53..
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  #105  
Old Thu 08 January 2009, 06:48
javeria
Just call me: Irfan #33
 
Bangalore
India
G' I was searching for a reactor for the spindle and VFD, they only provided me with one which I can use between the Power supply and VFD and not the one between the VFD and spindle - will this work for us?

RGDS
IRfan
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  #106  
Old Thu 08 January 2009, 06:54
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
I know too little about reactors to make a guess on this one.
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  #107  
Old Thu 08 January 2009, 07:04
javeria
Just call me: Irfan #33
 
Bangalore
India
ok - the supplier assured me that I would be OK - so I am going ahead to use the one provided. will let everyone know if any problem arises.

RGDS
IRfan
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  #108  
Old Fri 16 January 2009, 12:22
javeria
Just call me: Irfan #33
 
Bangalore
India
gearbox comments welcome :

Folks - here is my design of the gear box - comments are welcome - especially those finding teh faults in the design.

RGDS
IRfan
Attached Images
File Type: jpg 5.jpg (51.8 KB, 1256 views)
File Type: jpg 6a.jpg (63.9 KB, 1259 views)
File Type: jpg 7a.jpg (43.5 KB, 1261 views)
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  #109  
Old Fri 16 January 2009, 13:00
javeria
Just call me: Irfan #33
 
Bangalore
India
forgot the pinion shaft

shaft added

the pinion shaft is 10mm dia.
Attached Images
File Type: jpg 8a.jpg (62.9 KB, 1258 views)

Last edited by javeria; Fri 16 January 2009 at 13:05..
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  #110  
Old Fri 16 January 2009, 13:11
Richards
Just call me: Mike
 
South Jordan, UT
United States of America
Be sure to allow for adjustment. Normally the motor slides at least 6mm to compensate for differences in the belt and to allow the belt to be replaced.
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  #111  
Old Fri 16 January 2009, 13:16
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Irfan,

I noticed that the belt in your drawing doesn't show teeth. Is it a toothed belt?

If yes, I have read (I don't know where) that a good quality toothed belt and gear system (often called a timing belt and timing pulley) has very little backlash, even less than gear-to-gear system.

Is that your understanding?

Regards,
John
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  #112  
Old Sat 17 January 2009, 02:17
javeria
Just call me: Irfan #33
 
Bangalore
India
Mike I modified the mount per your advise.

John you are right on every count

i am thinking of material that can be used for this, I have seen Acrylic and Aluminum used so far, will delrin / ABS / PVC - can any of these be used? considering I am not tapping threads in them?

RGDS
Irfan
Attached Images
File Type: jpg 9a.jpg (45.4 KB, 1248 views)
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  #113  
Old Sat 17 January 2009, 04:03
Richards
Just call me: Mike
 
South Jordan, UT
United States of America
I built one set of belt drive gearboxes from 1/2-inch polycarbonate, another set from 1/2-inch aluminum, and the final set from 1/2-inch Delrin. All three materials worked equally well. If I were to build another set, I would probably use Delrin, but I would use metal for the motor mount to help dissipate the heat better. One other thing that I would definitely do next time would be to cut the two main plate from 1/2-inch MDF until I was satisfied with the design. Looking through my drawings shows fourteen different versions, about half of which were actually cut. The only reason that I used 1/2-inch thick material was to allow the brackets to be pocketed for ball bearings. It would be much more time/cost effective to have the brackets laser cut out of 3/16-inch steel and then either use bronze bushings for bearings or cut some bearing blocks out of 1/2-inch aluminum or Delrin. (Even when jogging at 15-ips with a 1-1/2 inch diameter pinion gear, the shaft is only turning 200 RPM, so I doubt whether it's necessary to use ball bearings. Except of the mess of occasionally oiling bronze bushings, they would probably be satisfactory.)

(On my designs, I also slotted the hole for the shaft and the shaft slot was large enough so that I could remove the motor without taking the gear off the shaft.)
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  #114  
Old Sun 18 January 2009, 06:04
javeria
Just call me: Irfan #33
 
Bangalore
India
Mile I took care of the words in the brackets,

folks teh pics are in no particular order - found out that I had made a few mistakes and I am still finding out and working my way through

RGDS
Irfan
Attached Images
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File Type: jpg 6.jpg (110.7 KB, 1227 views)
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  #115  
Old Sun 18 January 2009, 06:49
jhiggins7
Just call me: John #26
 
Hebron, Ohio
United States of America
Irfan,

Nice progress. Thanks for sharing. It's good to see some step-by-step pictures of a build.

I notice that the "bevels" are not yet on the Y-rails. Yet they are cut to length. Are you going to mill them?

Regards,
John
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  #116  
Old Sun 18 January 2009, 06:57
javeria
Just call me: Irfan #33
 
Bangalore
India


I mentioned that I erred in a lot of places - congrats John - you caught one

I am going to weld a extra piece of flat and then grind it.

not the right way - but just a improvisation.

Hey Vishnu are u listening mate - I need that attachment to grind the rails - send it to me fast

RGDS
Irfan
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  #117  
Old Sun 18 January 2009, 07:03
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Nice progress Irfan!

Want to choose a new title for your thread?
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  #118  
Old Sun 18 January 2009, 07:34
javeria
Just call me: Irfan #33
 
Bangalore
India
This time your choice G'

RGDS
IRfan
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  #119  
Old Sat 24 January 2009, 11:39
LIBBIT
Just call me: John
 
Mt Roskill, Auckland
New Zealand
Hi,

I'm busy looking at a 3:1 gearbox and like u'r design. Could u make the design avaiable. I'm using SolidWorks 2006.

Rgds

John
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  #120  
Old Mon 26 January 2009, 05:21
javeria
Just call me: Irfan #33
 
Bangalore
India
John - once the design works - I will share the IGES files.

well - the control box went one step ahead now - you can see the pics attached

From going to Coimbatore to visit Vishnu - I picked up the spindle and tomorrow will be off to purchase the tube - pump and radiator -

need to get some U clamps to mount the spindle on the Z plate.

Vishnu has given me some Z components and I will start working on it once everything is going in my hand.

vishnu has not yet completed the rail grinding and so I could not get his attachment.

One another thing Vishnu did not mention is the screw up the CNC guy has done to the V wheels - Instead of the advised 90 deg the wheels measured 70 deg which is a tad deeper and so we are back to sq one on wheels - we have asked for replacements.

Gear box material was purchased by Vishnu so even that is coming from him -

till then i have to mount bellows on my Ball screw machine which I will finish and also the cooling part - for the spindle for the mechmate.

RGDS
IRfan
Attached Images
File Type: jpg 7.jpg (97.8 KB, 1151 views)
File Type: jpg 8.jpg (68.8 KB, 1149 views)
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