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Messages - Tweakie.CNC

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311
General Mach Discussion / Re: Motor Driver issue
« on: October 05, 2018, 02:59:05 AM »
There will be no direct 'short' between the Pul- and Dir- connections on the driver.
However, the internal opt-isolators may incorporate pull-up/down resistors so the measured resistance may depend on your measuring device.

Tweakie.

312
Show"N"Tell ( Your Machines) / Re: Controller and drivers
« on: October 05, 2018, 02:43:33 AM »
I think an external motion controller would be a better choice than parallel port operation.

You would need to find details of the existing motors and drivers as they could possibly be OK to re-use.

It certainly sounds like an interesting project to undertake.

Tweakie.

313
General Mach Discussion / Re: Motor Driver issue
« on: October 05, 2018, 02:14:10 AM »
Just a suggestion...

Remove the Enable wires completely. At this stage they are not necessary.

Check in your Mach3 Motor Outputs that you have the X axis Enabled and the correct Port and Pin numbers set. Also Step Low Active set.

Also check in Port Setup that you have the Port Enabled and the correct Port Address set ( the port address for your PCI card can be found in Win. Device Manager).

Hope this helps,

Tweakie.

314
Mach3 under Vista / Re: Help with STEPS PER UNIT CALCULATOR
« on: October 05, 2018, 01:44:03 AM »
Hi Sono,

The most common microstep setting is 8 (or 1/8th).

The Gecko website has some excellent explanatory tutorials; https://www.geckodrive.com/support/step-motor-basics.html

Tweakie.

315
Mach3 under Vista / Re: Help with STEPS PER UNIT CALCULATOR
« on: October 04, 2018, 08:23:17 AM »
Quote
So if I understand it correctly, if my Ballscrew is 12mm diameter and 4mm Pitch and it has one start, Lead (mm/rev) value on the file should be 4, right?

Correct  ;)

Tweakie.

316
Mach3 under Vista / Re: Help with STEPS PER UNIT CALCULATOR
« on: October 04, 2018, 06:31:36 AM »
Hi ,

I see the confusion.

'Pitch' is the distance between the crest of adjacent threads and 'Thread Starts' are the number of individual threads.
Basically the calculation provides the distance the carriage moves from one complete revolution of the screw and this is defined as the 'Lead'.

You do not have to complete the lower part of the calculator to obtain the Steps per Unit.

Once you have established the correct Steps per Unit they can be checked by using the Axis Calibration feature on the Settings page.

Tweakie.

317
hello all please i need help
i have bridge saw cnc for cut the marble stone 5 axis i will retrofit ro Mach3 and i have alphacam software i need some one help me for build post processor can made it under payment
Thanks for your help.

pop28



This thread should help; http://www.machsupport.com/forum/index.php/topic,3607.msg27085.html#msg27085

318
I am pleased that you have sorted the Crop Circles  ;)

If you run the Axis Calibration feature (Settings page) you can check that your Steps per Unit are set correctly for your Y axis (use a reasonably large distance when testing).

319
G-Code, CAD, and CAM discussions / Re: Excellon to GCode converter - Protel
« on: September 30, 2018, 07:55:18 AM »
Hi ZASto,

Thank you for taking the time to share your hard work with the forum.

Tweakie.

320
To remove the Crop Circles;  In Config / General Config change the IJ Mode setting. Then Regen the toolpath and all should be well.

Ideally all Gcode containing arcs should contain the correct G90.1 or G91.1 (as appropriate).

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