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Search: Posts Made By: bradm
Forum: MechMates already cutting Sun 16 September 2018, 16:47
Replies: 444
Views: 57,873
Posted By bradm
That sounds to me like you are getting spindle...

That sounds to me like you are getting spindle noise transferred into your Y axis motor cable. If it were transferring to your limit switches, you should see that in the software effect. It might...
Forum: MechMates already cutting Wed 15 August 2018, 19:01
Replies: 444
Views: 57,873
Posted By bradm
Looks like it will work, it should be a bit...

Looks like it will work, it should be a bit tricky.

On the inputs, I've generally wired to the first and third. Make sure you're over-rated on the inputs by 2/3.

On the spindle output, you...
Forum: Troubleshooting Wed 08 August 2018, 18:46
Replies: 36
Views: 7,972
Posted By bradm
Glad you're solved for now. Onwards and upwards!

Glad you're solved for now. Onwards and upwards!
Forum: Troubleshooting Wed 08 August 2018, 11:12
Replies: 36
Views: 7,972
Posted By bradm
Sorry, I've been away a week. So, "Magic spots"...

Sorry, I've been away a week. So, "Magic spots" in my experience:

- Greater motion resistance due to supply wires, or dust collection. Tends to be nearer the limits, but not exactly on them.
...
Forum: Troubleshooting Thu 26 July 2018, 07:38
Replies: 36
Views: 7,972
Posted By bradm
Um, X80 Y46 is pretty near the limits of your...

Um, X80 Y46 is pretty near the limits of your table, no? So you're pulling the cables farther than at any other time? I'd take a hard look at where the main cable chain transitions to the gantry...
Forum: Troubleshooting Thu 26 July 2018, 07:11
Replies: 36
Views: 7,972
Posted By bradm
I wish we knew what Darin's resolution was. ...

I wish we knew what Darin's resolution was.

First questions that come to mind are:

Is this about a magic location on the table, or is it about the length of time since the start of the job, or...
Forum: Introduce yourself and start planning Fri 20 July 2018, 15:16
Replies: 3
Views: 321
Posted By bradm
As Pete is indicating, if you can ID the parts,...

As Pete is indicating, if you can ID the parts, we might be able to help suggest the kits to put together. Maybe build a photo collection somewhere we can skim for you?
Forum: 10. Base Table Fri 22 June 2018, 07:58
Replies: 2
Views: 600
Posted By bradm
So, I think you can check off the "heavy" and...

So, I think you can check off the "heavy" and "level" checkboxes. That leaves a few more concerns in my mind.

The base doesn't just have to support the rails and the table; it has to provide...
Forum: Miscellaneous / General / Whatever / Catchall Wed 07 March 2018, 11:21
Replies: 12
Views: 2,289
Posted By bradm
Wow, some of my favorite people on the planet...

Wow, some of my favorite people on the planet that I've never met all show up to a party!

Good to hear that all is well, Gerald. I wish you and yours the best
Forum: MechMates already cutting Fri 19 January 2018, 13:39
Replies: 95
Views: 27,629
Posted By bradm
<Chuckle> I'll take a swing at that horse, too,...

<Chuckle> I'll take a swing at that horse, too, as has been done in the past. (http://mechmate.com/forums/showthread.php?t=3794)

The key here is really to think of the entire motion control...
Forum: Construction started, but not cutting yet Sun 14 January 2018, 12:56
Replies: 230
Views: 35,349
Posted By bradm
Awesome, glad it's under control! Yeah, the...

Awesome, glad it's under control! Yeah, the PD11, PD14/PD15 stuff is really more about what you decide is right for your equipment.

Happy routing!
Forum: Construction started, but not cutting yet Sun 14 January 2018, 09:43
Replies: 230
Views: 35,349
Posted By bradm
So, nothing should be set to 50hz - all of those...

So, nothing should be set to 50hz - all of those are defaulting to the lowest of the three common motor frequencies ( 50, 60, 400 ). You have a spindle, not a pump motor, so PD4,5,72 should all be...
Forum: Construction started, but not cutting yet Sat 13 January 2018, 13:52
Replies: 230
Views: 35,349
Posted By bradm
I don't think that PDF is correct. The model...

I don't think that PDF is correct. The model name scheme doesn't match. Using this one. (http://zlitos.com/pub_file/00005_inverter/inverter_instruction_manual.pdf)

With PD01 = 0 you're...
Forum: Construction started, but not cutting yet Thu 11 January 2018, 15:01
Replies: 230
Views: 35,349
Posted By bradm
Okay, so those sound like reasonable voltage...

Okay, so those sound like reasonable voltage readings. Now let's confirm polarity.

You've got the (-) side of the meter on ACM, and the (+) side on VI, and the reading is positive voltage? If...
Forum: Construction started, but not cutting yet Thu 11 January 2018, 13:25
Replies: 230
Views: 35,349
Posted By bradm
That control voltage should be DC. If you're...

That control voltage should be DC. If you're measuring it in AC, then you're basically measuring the noise and power supply ripple, not the signal value.

If the meter really was in Volts AC, can...
Forum: Miscellaneous / General / Whatever / Catchall Sun 24 December 2017, 13:01
Replies: 3
Views: 1,007
Posted By bradm
Best of the season right backatcha Sean, and to...

Best of the season right backatcha Sean, and to everyone else as well.

Wish everyone a happy healthy and successful new year.

Brad
Forum: Construction started, but not cutting yet Fri 15 December 2017, 08:53
Replies: 230
Views: 35,349
Posted By bradm
Well, for measuring simple DC voltage, Harbor...

Well, for measuring simple DC voltage, Harbor Freight will sell you a disposable piece of junk for 6 bucks or so. I must own five of them, scattered around so that I don't have to go fetch the one...
Forum: Construction started, but not cutting yet Wed 13 December 2017, 12:06
Replies: 230
Views: 35,349
Posted By bradm
So not getting a reading from ACM to VI is...

So not getting a reading from ACM to VI is weird, and so is getting a reading from DCM to VI. It makes me continue to be suspicious of a wiring error. I assume the reading at VI must have moved...
Forum: Construction started, but not cutting yet Wed 13 December 2017, 09:56
Replies: 230
Views: 35,349
Posted By bradm
What does a meter with black on ACM and red on VI...

What does a meter with black on ACM and red on VI show during the test? Any chance you have aout and agnd reversed?

I notice you have a yellow/green wire connected to VI, does that go to aout as...
Forum: Construction started, but not cutting yet Wed 13 December 2017, 06:21
Replies: 230
Views: 35,349
Posted By bradm
That all seems correct. The redundant commons...

That all seems correct. The redundant commons (ACM and DCM) are pretty er, commonly found for convenience when wiring multiple harnesses to the VFD.

I suspect that the trim point all the way down...
Forum: Construction started, but not cutting yet Tue 12 December 2017, 19:47
Replies: 230
Views: 35,349
Posted By bradm
I think I would hang a meter across the analog...

I think I would hang a meter across the analog speed input of your VFD to see what the measurement is, and if it varies in response to changing the software setting.

Based on what you've described...
Forum: 70. Control Systems Tue 12 December 2017, 08:52
Replies: 14
Views: 1,714
Posted By bradm
Mike, is this a relatively new dryer? And the...

Mike, is this a relatively new dryer? And the neutral and ground are tied together in the dryer, but you have a four prong plug? There should be a jumper that ties them together that's supposed to...
Forum: Construction started, but not cutting yet Mon 11 December 2017, 13:23
Replies: 230
Views: 35,349
Posted By bradm
Or change the polarity on the direction pin, if...

Or change the polarity on the direction pin, if your software allows.

Have you tried the various online machining services - emachineshop and the like? I haven't used them, but if you can't find...
Forum: 70. Control Systems Mon 11 December 2017, 07:24
Replies: 14
Views: 1,714
Posted By bradm
Glad the mystery is solved. It's probably worth...

Glad the mystery is solved. It's probably worth asking Gecko about shipping back the dead one for repair - you might end up with an inexpensive spare for the future.

In my mis-spent youth we did...
Forum: 70. Control Systems Sun 10 December 2017, 11:58
Replies: 14
Views: 1,714
Posted By bradm
It sounds to me like your neutral is not...

It sounds to me like your neutral is not connected properly. You say you have 125 on each leg feeding in; 125 + 125 = 250. And you have 144 and 106 on the other side, also totalling 250. So the...
Showing results 1 to 25 of 500

 
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