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12-08-2014
Thread: I NeeD HeLp PLease AM882 a good choise
by Clive S- Replies
- 34
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- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
I will answer some of it to get you going. First the power supply looks ok from the picture but the output cable (66V) cable would need to be a bit bigger than it looks on the picture at least to...
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12-08-2014
Thread: I NeeD HeLp PLease AM882 a good choise
by JAZZCNC- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
Juan I got your PM and email so will reply with answers and circuit diagram to your questions in next few days.
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22-05-2014
Thread: I NeeD HeLp PLease AM882 a good choise
by JAZZCNC- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
Great good to see you took Jons good advise. Those motors while still a little higher than some motors of same power are still have low enough impedance not to be restrictive.
I got your PM and... -
08-05-2014
- Replies
- 17
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- 47,571
Re: Mach3/CNC Box wrong direction help
You need to go into Ports & Pins/ Input signals and find X home, Y Home, Z Home. Set Port #1 Pin #12 then toggle the Active state if it's permantently ON.
Then in Diagnostics when you trip the... -
06-11-2013
Thread: I NeeD HeLp PLease AM882 a good choise
by JAZZCNC- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
Juan, I would have only told you to buy that PSU if you didn't want to build your own. My first choice and advice I'd usually give first is to build your own has it's cheaper and can be tailored to...
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05-11-2013
Thread: I NeeD HeLp PLease AM882 a good choise
by Jonathan- Replies
- 34
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- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
The inductance is marginally worse than the CNC4YOU (and Zapp) motors, but you're unlikely to notice much difference assuming they do actually meet the specifications. I measured the inductance of...
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05-11-2013
Thread: I NeeD HeLp PLease AM882 a good choise
by JAZZCNC- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
I've had several sets of TBI linear rails now and they have been fine and while not quite smooth has Hi-win they are still more than good enough and lot cheaper. I've been using SBC Linear rails...
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04-11-2013
Thread: I NeeD HeLp PLease AM882 a good choise
by Jonathan- Replies
- 34
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- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
Then you're basically stuck if you want them for a reasonable price. Will CNC4YOU not ship to your country? If not, then you need to find 3Nm (425oz-in) motors with 3.2mH phase inductance. They...
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04-11-2013
Thread: I NeeD HeLp PLease AM882 a good choise
by Jonathan- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
Just because something that it better is available doesn't mean you need something better. The machine will run perfectly well with DQ860MA drivers.
The cheapest AM882 drivers on aliexpress are... -
04-11-2013
- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
Juan,
Have a read on this thread about the frame design.
http://www.mycncuk.com/forums/router-build-logs/6674-stell-frame-cnc-1500x1000-adjustable-table-your-opinion-please-3.html -
03-11-2013
Thread: I NeeD HeLp PLease AM882 a good choise
by JAZZCNC- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
I see a reason.!!!!. . . . They are better.!! . . . and the price difference is not enough to justify not taking advantage of there more advanced features like better resonance handling and stall...
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03-11-2013
Thread: I NeeD HeLp PLease AM882 a good choise
by Jonathan- Replies
- 34
- Views
- 44,494
Re: I NeeD HeLp PLease AM882 a good choise
Either is plenty stiff enough. Sometimes people go for the 20mm rails just to make it easier to to make the parts they mount to with minimal machining. You need to draw it and work out which is best...
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15-09-2012
Thread: Confirming PSU spec for steppers.
by m.marino- Replies
- 103
- Views
- 216,753
Re: Confirming PSU spec for steppers.
Okay,
I have been reading and talking to folks (Thanks Jazz) on the power supply issue. This is what I understand and what I want to make sure of.
Mains power (fused at plug) To
Fused...
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Fixing my Arcam Alpha One Amplifier