Messages

331

Mach4 General Discussion / Re: Internal Search & External Links (such as Google) don't work?

« on: December 25, 2018, 06:52:22 PM »

OK
Since NFS does not give a ... for such a knowledge base contained in this forum, here is a workaround for broken links.

This one, obviously, does not work: http://www.machsupport.com/forum/index.php/topic,38540.0.html and will redirect you to the NFS home page 

But this one should: http://forum.machsupport.com/forum/index.php/topic,38540.0.html

So, replace http://www. with http://forum.


If moderators find this usefull, topic could be renamed and toped.

ZASto 

332

General Mach Discussion / Re: mach3 mill program simulator

« on: December 19, 2018, 05:10:44 PM »

Unlicensed version will process only 500 lines of code.

333

Mach4 General Discussion / Re: New people welcome !! Come in here and introduce your self!

« on: December 14, 2018, 08:49:41 AM »

Licence for Mach2 is 100% valid for Mach3.

334

G-Code, CAD, and CAM discussions / Re: PCB milling FlatCam Mach3 problems

« on: December 12, 2018, 11:44:17 AM »

Likewise

335

G-Code, CAD, and CAM discussions / Re: PCB milling FlatCam Mach3 problems

« on: December 06, 2018, 09:39:47 AM »

You should configure your machine first.
When you jog, is there any movement of the machine, any changes in DROs?
Please specify your machine hadrware (controller type) and your Mach settings.

336

General Mach Discussion / Re: Movement of Z axis is great in down direction but is incorrect in Up direction

« on: December 05, 2018, 01:45:51 PM »

To check backlash, here is a macro by CNCNutz
Attached metric and imperial. Edit the macro as it suits your machine (https://www.youtube.com/watch?v=CS2rosB_ce0)

337

General Mach Discussion / Re: Movement of Z axis is great in down direction but is incorrect in Up direction

« on: December 04, 2018, 11:04:05 AM »

Every machine is different, so calibration screens would tell you nothing relevant.
It is YOUR machine that should be calibrated.
Nut, beeing secure does not tell you anything about the friction/binding etc.
You should first start with low accel and incrementaly increase max speed to the point when stepper stalls. Back off approx 20%. Then start increasing accel, again to the point when stepper starts loosing steps/stalls, back off and test UNDER LOAD. Your Z axis should be calibrated this way in the UP direction.

338

General Mach Discussion / Re: Movement of Z axis is great in down direction but is incorrect in Up direction

« on: December 04, 2018, 05:41:25 AM »

Just rectify the rising motion
Obviously you are loosing steps in the Zup direction.
Probable causes: high acceleration or impotent motor (sorry couldnt resist)

339

General Mach Discussion / Re: Movement of Z axis is great in down direction but is incorrect in Up direction

« on: December 03, 2018, 05:08:25 PM »

I guess that your acceleration is too high.
You are loosing steps because the mechanical resistances in your screw/nut combo, friction oh guides and mas of Y axis (gravity )
Gravity assisted going down is ok (everything falls down) but way up

340

Brains Development / Re: Brain writing on/off relay

« on: November 28, 2018, 05:28:06 PM »

Here is, recreated