Search found 24 matches

by chris.poirier
Thu Oct 03, 2013 2:20 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: To shunt or not to shunt? (shunt regulator)
Replies: 8
Views: 4974

Re: To shunt or not to shunt? (shunt regulator)

Great, thanks for the response.
I intend to let the motors fail if they are going bad and then replace them, is there a risk with doing this?

My long term goal is to convert the lathe to CNC, learn to make a POST for Pro-E then sell off everything and go shopping for better equipment (another ...
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by chris.poirier
Wed Oct 02, 2013 12:38 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: To shunt or not to shunt? (shunt regulator)
Replies: 8
Views: 4974

Re: To shunt or not to shunt? (shunt regulator)

Hi Scott,
OK between changing the taps and removing a cap on my rotary phase converter I have the DC voltage down to 118VDC no load and 102 with the mill spindle on.
When I start my lathe with the mill running the voltage goes to 100 VDC.

Am I OK to run?
Hope you can get back to me I want to start ...
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by chris.poirier
Tue Oct 01, 2013 9:46 am
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: To shunt or not to shunt? (shunt regulator)
Replies: 8
Views: 4974

shunt regulator / phase converter issues

I am still in a bind.

The X-former taps are set to 250VAC (highest setting) and I went out and bought an infrared thermometer at harbor freight.
Here are the things I tried with results.

Spindle on, no shunt regulator, I get 112 VDC
Spindle off, no shunt regulator, I get 128 VDC (is this too high ...
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by chris.poirier
Wed Sep 25, 2013 3:47 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: To shunt or not to shunt? (shunt regulator)
Replies: 8
Views: 4974

Re: To shunt or not to shunt? (shunt regulator)

"Not to Shunt"

I'll pull the shunt regulator and make adjustments.
The shunt regulator would have been connected to the cap before the DC3IOB.
Glad I asked before I installed. Fun starts tonight If I can make 110DC without it.


Thanks for the input.
Regards,
Chris
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by chris.poirier
Wed Sep 25, 2013 1:52 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: To shunt or not to shunt? (shunt regulator)
Replies: 8
Views: 4974

Re: To shunt or not to shunt? (shunt regulator)

Hi Scott,
On my 5hp lathe, I have an issue where the coolant pump overload contactor trips when not running the spindle at the same time. I believe this is because of the wild leg on the rotary phase converter.
I wanted to make sure the mill did not have this issue as it is only 3 hp. I am using a ...
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by chris.poirier
Tue Sep 24, 2013 1:38 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: To shunt or not to shunt? (shunt regulator)
Replies: 8
Views: 4974

To shunt or not to shunt? (shunt regulator)

Hello out there,
Last time I was working on my project I cleaned up all my wiring and powered up to check the DC supply.
110VDC on the dot. I am ready for my install now and I decided to let everything run for 30 minutes.
I am running off a 10ph rotary phase converter and have a wild leg and just ...
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by chris.poirier
Thu Jun 06, 2013 3:10 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: SD1 in place of DC1
Replies: 1
Views: 2801

SD1 in place of DC1

Is it possible to install and use an AC servo with a DC3IOB/MPU11 kit.
I have purchased a Nikken rotary table thinking I would change over the servo, I think I can do it buy I'll have to disassemble a spare servo I have and put a taper and a key on it. Worried about even small amount of run out.
I ...
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by chris.poirier
Wed Jun 05, 2013 2:20 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: electronic gearing and gear hobbing
Replies: 3
Views: 4195

electronic gearing and gear hobbing

Is it possible to drive a 4th axis as a slave to the spindle to hob a gear using Centroid software?
Chris
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by chris.poirier
Thu Jun 21, 2012 9:02 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: Ajax with my 4th axis! HELP
Replies: 3
Views: 3427

Re: Ajax with my 4th axis! HELP

Check out this link.
akes 10v analog signal and synthesizes quadrature to run a stepper.
Not recommending it, just thought it was interesting.
http://www.vigproducts.com/html/an2step.htm


cp
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by chris.poirier
Thu Jun 07, 2012 1:35 pm
Forum: Centroid Oak, Allin1DC, MPU11 and Legacy products
Topic: manual Z axis help/ideas wanted
Replies: 5
Views: 4210

Re: manual Z axis help/ideas wanted

OK this is good.
Can I add a single hand wheel to run Z?
If so can I hack the design to make a handle similar to what you would see on the side of a Bridgeport head.
Also is there a way to get the % load of the z-axis servo out to the outside world?

I am a mechanical design engineer by day and have ...
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