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  #31  
Old Tue 23 October 2007, 16:00
driller
Just call me:
 
Quote:
Originally Posted by Gerald D View Post
Dave, we use that style of terminal for many other things besides Geckos. Lots of industrial machinery, mines, ships, automotive, railways, etc. We know them as a trouble-free, long-term reliable, terminal that can even be installed by unskilled labour.


My point was that there is not enough power going thru the wires to present a problem using a good quality crimp connector.

I lost one Gecko from a single strand of a motor wire that did find it's way out of the screw-clamp.

I too will be looking a the collars so as to prevent a re-occurance.

Dave
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  #32  
Old Tue 23 October 2007, 17:21
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
Gerald,
The ferrules I mentioned are the same as you linked to. They are available in insulated and non-insulated versions. When tight access, I just shrink tube on the non-insulated ones....etc. These are the ferrules recommended to me from our Local UL inspector. If I plan on doing this in the future on a larger scale, I would like the panel be be UL 508 panel approved for insurance/liability reasons.
Sean
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  #33  
Old Wed 24 October 2007, 00:02
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Quote:
Originally Posted by driller View Post
....there is not enough power going thru the wires to present a problem using a good quality crimp connector.

I lost one Gecko from a single strand of a motor wire that did find it's way out of the screw-clamp.

I too will be looking a the collars so as to prevent a re-occurance.
and
Quote:
Originally Posted by smreish View Post
..... I would like the panel be be UL 508 panel approved for insurance/liability reasons.
I think those two quotes summarise nicely what this thread is all about - attention to small details can save money and headaches. Different countries may use different systems, but it all boils down to keeping the copper tidy and tight. It is important to me that the control box should be wired at a place where there is lots of light and no rush - the kitchen table!
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  #34  
Old Wed 24 October 2007, 12:48
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Doug, if you are still interested in those ShopBot/Wago connectors, read this post on the ShopBot forum today:
http://www.talkshopbot.com/forum/sho...8550#POST58550
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  #35  
Old Wed 24 October 2007, 18:08
Doug_Ford
Just call me: Doug #3
 
Conway (Arkansas)
United States of America
Thanks Gerald but once you told me they weren't a good idea, that was enough for me. I ruled the idea out immediately.

I received my cables today but am having trouble getting the Mechmate logo made. Those are the last major pieces to acquire. Now, it's just the wiring part. Oh yeah and I have to machine the router bracket. Unfortunately, I have to work every day for the next 3 weeks and won't get a chance to make much headway. It's killing me because I want to post some pictures of my progress. I'm proud of it and often catch myself just standing there smiling at it. I love your design.
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  #36  
Old Thu 25 October 2007, 00:21
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Quote:
Originally Posted by Doug_Ford View Post
. . . and I have to machine the router bracket.
That's another candidate for lasered & bent plate . . . . .

Quote:
Originally Posted by Doug_Ford View Post
Unfortunately, I have to work every day for the next 3 weeks
Profound
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  #37  
Old Thu 25 October 2007, 10:54
Doug_Ford
Just call me: Doug #3
 
Conway (Arkansas)
United States of America
Haha. I meant I won't even have a weekend off.
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  #38  
Old Thu 25 October 2007, 22:02
Doug_Ford
Just call me: Doug #3
 
Conway (Arkansas)
United States of America
Tonight I wired the PMDX board to the Geckos and had trouble inserting all the strands into the tiny terminal holes. I looked again at the pictures of your control box and noticed that you didn't use those crimp on pin connectors when you wired those same cables. Was there a reason? I'd really like to use them because my cables have 20 AWG wires so it's a tight fit and I'm worried I'll end up with a stray strand.
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  #39  
Old Thu 25 October 2007, 22:25
Richards
Just call me: Mike
 
South Jordan, UT
United States of America
As far as the crimp terminals go, I've been able to find sizes to accommodate all common sizes of wire, from 28-gauge to 8-gauge. With most connectors, I like to have 24-gauge, 22-gauge, 18-gauge, 16-gauge and 12-gauge on hand. If you buy from places like www.ferrulesdirect.com, the price for 500 each averages to about $10 per size. So, for $50, you would have enough ferrules to wire several control boxes.
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  #40  
Old Thu 25 October 2007, 23:55
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
On the PMDX, the currents and voltages are very low and the wires can be quite thin. (I don't exactly how thin the wire was that I used there). The board terminals were too small for the range of crimp terminals that I had available so I went without them.
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  #41  
Old Fri 26 October 2007, 05:16
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
ferrules

My recent arrival from ferrulesdirect.com $28.30 for the assortment including shipping. Sean
Attached Images
File Type: jpg ferrules.jpg (82.4 KB, 1518 views)
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  #42  
Old Fri 26 October 2007, 06:12
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
. . . and the crimping tool?
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  #43  
Old Fri 26 October 2007, 06:43
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
...Yes, I already own that! Very important to have the correct crimper. I have a ratcheting device with changeable jaws for round, oval or rectangular malleable crimps. Worth every penny! Good point Gerald.
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  #44  
Old Fri 26 October 2007, 10:11
Doug_Ford
Just call me: Doug #3
 
Conway (Arkansas)
United States of America
I looked at the ferrules when someone mentioned them earlier but ruled them out because they required a new crimping tool. If I use the crimp on pin terminals, I can use the same ratcheting crimping tool I use for the other connectors. However, if the experts (Gerald, Mike, Sean, and others) recommend the ferrules, that's what I'll go with.
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  #45  
Old Fri 26 October 2007, 10:21
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
Doug.
Each method has similar results - if done well. A well crimped connection to the wire that results in good voltage/current transmission without arcing is the goal. As long as your practice works....then continue your path. I actually use both aforementioned solder-less connectors on a case-by-case basis. In summary, any practice that has good results is worth keeping! Good Luck.
Sean
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  #46  
Old Sat 20 August 2011, 09:40
Kobus_Joubert
Just call me: Kobus #6
 
Dalview
South Africa
Send a message via Yahoo to Kobus_Joubert Send a message via Skype™ to Kobus_Joubert
I thought it good to post this experience here as I feel it has to do with wiring.

PLEASE NOTE.....
... PLACE Names and the NAMES of people have been changed to protect their identity...

Recently a guy ...let us call him Brad.... had a working MechMate in let's say Randburg...
This machine was in his shop working and producing a lot of dust.

Then one day about 3 weeks ago this Big Blue Beast suddenly lost Y-Direction movement.

Stepper driver was changed, BOB was changed, wiring was checked, but still the stepper would just sit there and BUZZ...or HUM or do something apart from STRONG forwards and backwards movement.

Then this poor guy we are calling BRAD picked up the Swine Flu and so he could not attend further to the problem.

So this morning I went to see if I could help, because a MM without movement is like riding a superbike with kiddies wheels on the side.

Well this thing had me by the short and curleys for most of the morning, but then I found it...........

As we are using steppers with 8 wires, we save the 1 motor for the future and only run using 4 wires. The other 4 wires are NEATLY taped up and out of harms way......ha ha
Not the case.
Somebody that wired the motors to the cable had these 4 unused wires BADLY wrapped up and what happened was that the insulation started to break through and as the stepper driver tried to turn the motor, the turning motor generated voltage and this had an INTERNAL BRAKE effect on the whole thing.

We cut the unused exposed wires short and taped them up individually.

No more internal braking and his Big Blue machine was back in action.

One more for the fault logs to keep in mind.
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  #47  
Old Sat 20 August 2011, 11:33
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Smartly diagnosed Kobus - not something that is easy to find on someone else's machine if you don't know where he took shortcuts.
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  #48  
Old Thu 25 August 2011, 06:12
Neil
Just call me: Neil
 
Tas
Australia
I reckon Brad was really pleased Kobus.
I have just watched a documentry on TV about a man in Cape town who has a pet hippopotamus and his name is Tony Joubert
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  #49  
Old Thu 25 August 2011, 08:29
PEU
Just call me: Pablo
 
Buenos Aires
Argentina
Quote:
Originally Posted by smreish View Post
...Yes, I already own that! Very important to have the correct crimper. I have a ratcheting device with changeable jaws for round, oval or rectangular malleable crimps. Worth every penny! Good point Gerald.
Nice tool, brand? model? price? age? political party? religion?

I have a crappy crimper, breaks 1 out of 5 times the ferrule, never saw one like that one, it looks like a RJ45 crimper but for ferrules, nice!


Pablo
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  #50  
Old Thu 25 August 2011, 08:53
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
Pablo, Bien Dia Senor~

It's good the hear from you. Are you coming back to the States soon? Hopefully I will have my new machine up and running by then and we can have another MM meetup!

The Ferrule and such was purchased from

http://www.ferrulesdirect.com/

Great stuff, reasonable price - quick delivery.
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  #51  
Old Thu 25 August 2011, 09:27
Kobus_Joubert
Just call me: Kobus #6
 
Dalview
South Africa
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Hi Neil ... luckily my name is Kobus Joubert....I might growing to be as big as a Hippo but will try and stay a little normal.

And remember the name BRAD was only used to protect the innocent....ha
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  #52  
Old Thu 25 August 2011, 10:28
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Pablo, see old thread: Tools needed to build and operate the MechMate - gift ideas (from them to YOU!) but get the right type of jaws.

Last edited by Gerald D; Thu 25 August 2011 at 10:33..
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  #53  
Old Thu 25 August 2011, 10:29
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Quote:
Originally Posted by smreish View Post
Hopefully I will have my new machine up and running by then
Sean,
So do we get to see it?
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  #54  
Old Thu 25 August 2011, 19:03
smreish
Just call me: Sean - #5, 28, 58 and others
 
Orlando, Florida
United States of America
It's a pile of parts in a big drawer right now Heath. A 540, power supply, extra pmdx, it will be a 4 axis machine with a better BBQ. (you have to read WAy back in the forums if you don't get this joke reference.)
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  #55  
Old Thu 25 August 2011, 20:50
domino11
Just call me: Heath
 
Cornwall, Ontario
Canada
Oh no, I remember the BBQ, a whole OX right?
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  #56  
Old Wed 31 August 2011, 16:42
PEU
Just call me: Pablo
 
Buenos Aires
Argentina
Quote:
Originally Posted by smreish View Post
Pablo, Bien Dia Senor~

It's good the hear from you. Are you coming back to the States soon? Hopefully I will have my new machine up and running by then and we can have another MM meetup!

The Ferrule and such was purchased from

http://www.ferrulesdirect.com/

Great stuff, reasonable price - quick delivery.
Buen Dia Seor (alt164/165 at the numeric keypad gives you the /)

Today I found at a local store what I think is the exact same model as your photo, a clearly Chinese unit with a generic model HY-301E for $25
Tomorrow I have 2 small CNC lathe control boxes to assemble that will be built in less time Thanks!!

My cousin is in Orlando right now until october, I don't know when I'm going back there, but be sure that I'll ring you and Nils for a meeting.

Cheers!
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  #57  
Old Thu 01 September 2011, 00:31
Gerald D
Just call me: Gerald (retired)
 
Cape Town
South Africa
Pablo, I changed the Windows settings for my keyboard to type , , , , etc. see:
http://www.studyspanish.com/accents/typing.htm and http://support.microsoft.com/kb/306560 . The key thing is to convert your keyboard setting to English (US-INTERNATIONAL). I don't ever use Alt codes.
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  #58  
Old Thu 01 September 2011, 16:54
PEU
Just call me: Pablo
 
Buenos Aires
Argentina
yesyes, I have the same config since ages, but for an english speaker only it makes sense the regular US layout methinks

BTW, the keyboard Im using is 26 years old, an IBM type M from my first PC-XT circa 1985, been using it since then everyday.
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  #59  
Old Tue 25 October 2011, 19:01
griff
Just call me: griff
 
gilbert,Arizona
United States of America
wire connectors

Gerald Were can I buy the connector you used on your stepper motors, I need them for the kl34-180-90 servo motor from keling. Thanks Andrew Griffin
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  #60  
Old Tue 25 October 2011, 20:31
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
http://www.pmdx.com/ConnectorsMisc

PMDX has these.
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