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Messages - Sooty1986

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11
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 12, 2015, 06:21:47 AM »
Thanks!

12
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 11, 2015, 08:09:00 AM »
Thanks for the info!  I have ordered the parts from rs to make up a couple of spindle sensors.  Not got much further with the drivers and BOB as the company i was looking at (Zappautomation)  don't have the items i wanted in stock.

Will be using digital steppers on this build as they seem much quieter and smoother.  I think the majority of parts will be coming from CNC4YOU in the uk, at least for the first build.  I want to try diffrent suppliers before i convert my orac later on.

Another question guys.....   When looking at limit switches i have noticed they are rated at 250v ac max.  Do these work just fine with the 5v dc setup?

13
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 10, 2015, 03:47:11 PM »
Hmm, thanks for the info on the motor and the kb controller mc.  me thinks I will leave that for now, I can get by for a while without speed control. I can get the box with the pot on it and set the speed with that.  as long as I can get a spindle a lot sensor to work I will be happy.

Don't suppose you have the wiring diagram for the slot sensor you used mc?  There may be a chance the wiring is similar.

Question, does the thrust bearing on the motor ends do anything?  I ought the force would be put on the small split pins on the coupler before getting to the thrust bearing?

 

14
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 10, 2015, 03:45:22 AM »
If the cd idea works it will save me some time! 

Does anyone have a diagram showing how to wire kb dc  controller board to a bob.  I think there needs to be some sort of isolating circuit but I have no idea..  Still learning.


15
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 09, 2015, 06:06:48 PM »
Ok going by that pdf (thanks hood!) the current motors are wired exactly the same as the unipolar setup.  Based on this im happy to give them a go in bipolar

16
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 09, 2015, 05:11:12 PM »
Thanks hood, shal look into that setup.

The motor I have is a EGE, sigma 20-3424d200-f1.8

There is nothing on the other one, can't find a wiring diagram anywhere for the larger motor.  There are 8 wires total.  there are 4 white wires with tracers.  These are separated into two groups.  Also 4 individual wires, Yellow red orange and black.
 

17
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 09, 2015, 02:34:26 PM »
Not got any further with the motors....  Not a lot of info out there.  Making buying drivers etc a bit of a pain, Im hoping the motors can take 1.5a as that's as low as the steppers I'm looking at go. 

Hood,  do you know what pitch the ball screws are on each axis? 

For threading with Mach do I just need a spindle speed sensor??  Also do these sensors go back to the same inputs as like the limit/ home switches or do I need a completely separate board?

Thanks!

18
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 07, 2015, 05:18:02 PM »
Hood do you know what the large alloy box is under the spindle motor?

19
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 07, 2015, 05:16:51 PM »
I know now why there is a bearing on the stepper lol!  I think they are either tiny grubs or roll pins. Hard to tell... managed to get the motor number of the large stepper bbut still can't see anything on the small stepper...

Also need to figure out if if the existing spindle sensor can be used!




20
Show"N"Tell ( Your Machines) / Re: Conect 121 cnc retrofit
« on: February 07, 2015, 05:08:16 PM »


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