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Messages - reuelt

71
Hi all,

I have a small woodworking business and thought i'd try personalising some of my products with a cnc router. I got a cheap chinese '3040z', and after loads of hastle getting it to work, i realised the spindle was rubbish so i bolted a trim router onto it instead. Today i was getting some good results, all going well, until my third project. I dont know what if anything i've clicked or changed, but the machine is now plunging into the material and stalling at the start of every job.

So heres basically what i was doing: load in the material, fasten it down, use the keyboard to get the tip of the tool to the bottom left corner of the top surface of the material, zero all axis, then hit 'run'. All working perfectly.

Doing exactly the same thing now but plunging into the wood as soon as i hit start. I've taken the material out and set zero in the air at roughly the same point it would have been with the material just to see what it would do, and it appears to travel to the first cut underneath the surface rather than above it. the toolpath then seems fine until the job finishes, and then it drops back down to the bed (sacraficial ply board) and cuts a few mm deep into it back to home XY, and then back up to home Z.

I'm presuming its a mach issue as opposed to a fusion 360 issue as the same .tap file ran perfectly before.

Any help greatly appreciated. I've spend 5 hours so far trying to figure this out and i'm getting nowhere.
1. Do you have physical limit switches on your router?
If NOT, install them asap. Then "Ref ALL Home" will set the x y and z  machine zero correctly every time.
2. Avoid using G28
Use G53 instead
e.g.
G0 G53 Z0
then
G0 G53 X0 Y0 TO RETURN TO MAcHINE ZERO
before
M30

3.Make sure that in General config
Copy G54 from G59.253 is unticked (=unchecked)

4. If you have a USB motion controller/BOB, the USB cable must be a good quality one with one ferrite core on each end.
A trim router is always sparking at the armature producing lots of electromagnetic noise.  Better to have a VFD in future.

72
General Mach Discussion / Re: touch probe install on mack 3
« on: September 12, 2020, 09:09:37 PM »
Hi guys please excuse  me if this is not directly connected to mack 3 but i would like to install a touch probe to the interface board on my cnc , my problem is i have used all 3 available inputs 10/13/15 for limit switches xyz . is there a way to loop the 3 switches to one available input thus freeing up 10 or 15 and how may i do this ?
kind regards Jon
What model BOB are you using?
It may be cheaper to change the BOB to one with 4 or more inputs
or
If using parallel ports, add another PCI parallel port card + another $10 BOB for MORE inputs and outputs.

73
Bummer, I did this, yet when the Z axis goes too high it still does not turn off, but screams as it tries to crus the switch until I hit the escape button.  :(
You may need to make sure that all your "Soft limits settings" are correct first.
I set soft limits so that soft limits are triggered 0.1 inch BEFORE positive direction limit switches are hit  even though my shared limit/home switches are working.
Soft limits will ensure the motion will automatically slow down when it the near the limit positions. Also, a negative direction Z softlimit can can be used to stop long tools hitting the vise bottom or machine surface below the the spoil board.

74
Have you zeroed z on the material surface yet?

75
General Mach Discussion / Re: Importing a Profile
« on: September 12, 2020, 08:29:00 PM »
The default profile for mach3mill is saved in an XML file
Mach3Mill.xml in he c:\mach3 folder +all related  macros in c:\mach3\macros\mach3mill
Save a copy of the XML file and macro folder somewhere.
When you create a profile named "tangential"
you will have a tangential.xml and a folder c:\mach3\macros\tangential created
You may have to copy some macros from  c:\mach3\macros\mach3mill to the c:\mach3\macros\tangential folder.

76
VB and the development of wizards / Re: Auto Tool Zero without Z surface
« on: September 12, 2020, 07:33:10 PM »
You can  Set where you want to Measure the Tool.
Normally, the place that will not be machined.
1. In Mach3, Click "Settings (Alt-6)" on the Menu.
2. Then enter where you want in the X & Y DRO's
3. Under the "Tool Change Location" label.

You can use SIMPLE m6Start.m1s
with following contents:
   tool = GetSelectedTool()
   SetCurrentTool( tool )
   
   GageH = GetOEMDRO(1001)   
   
   Code"G0 G53 Z0"
   
   Xpos = GetUserDro(1200)
   Ypos = GetUserDro(1201)
   Code"G0 G53 X" & Xpos & "Y" & Ypos
   
cr = Chr(13)
msg = "Please Change The Tool" & cr  & cr & "Then Press [Auto Tool Zero]" & cr
msg = msg & "------- ------  -----------------------"  & cr  & cr
msg = msg & "Then Press [Cycle Start]"
MsgBox(msg)   



77
Hi guys good morning!
I need a help to make the connection and activation on the correct pins.
I connected to the tutorial below, also using the third source with 10v. But I don't know how to connect the OUT outputs to trigger the spindle.

Thanks for the opportunity.
Your RnR USB ECO Motion board does not have any relay.
Either replace with another controller board that has a relay or add a $5 5V relay (designed for Arduino) to convert one of the outputs to a switch.

(see attached)

The relay can then switch on/off your spindle controller.

78
General Mach Discussion / Re: 2.2KW A2 series VFD with V2 BOB Headache
« on: September 11, 2020, 04:24:39 PM »
Pls watch this youtube video to get some idea from others..
https://www.youtube.com/watch?v=jVirHq2kHKU

79
General Mach Discussion / Re: 2.2KW A2 series VFD with V2 BOB Headache
« on: September 11, 2020, 03:05:28 AM »
The analogue Ground terminal next to the 0-10V terminal of the BOB must NOT be connected to any (digital) Common ground.
Check the voltage between 0-10V and (analogue) Ground
Try inverting the pin1 polarity in MACH3 if there is no voltage.

80
Mach3 under Vista / Re: Mach 3 stop mid job
« on: September 04, 2020, 11:20:16 PM »
Hi there everyone,
I’ve got an issue that drives me nuts. I’ve dealt with it for so long and I finally want to fix it.

Windows 7. Mach 3.

About 1 out of every 8 jobs, my job will freeze randomly. Never more than once per job. Mach 3 freezes. I can’t press any buttons, I can’t jog, I can’t do anything. So I take a picture of the screen, restart Mach 3, reprogram spindle locations, add “run from line” and pull up the last line and I continue from there. usually, this works and the job continues in the same position as it would have. However, sometimes it will be off about 1-5mm, and the job will actually continue in a different spot and the job is ruined.

Does anyone have any recommendations to trouble shoot?

No words to describe how much I would appreciate.

Thank you!
Alex
1. Are you using Parallel port? If yes, what is brand of your parallel port card?
2. Win 7 is 32 bits, RAM size, Video Card?, HDD size.

For Win 7,
1. You need to go to control panel, hardware & sound | power options and advanced and
turn off ALL power savings options.
2. Go to services and permanently disable, Windows update and Superfetch

Also
Open up your PC case and
Blow away all dusts from CPU Heatsink
Take out RAM sticks and clean contacts with pencil eraser or emery paper or fiber glass pen.
Get a better Parallel port card that supports 5Volts signals rather than 3.3volts.

Please reply and ask further, I will answer all questions

Reuel Teoh
(Chartered IT Consultant)