Messages

1

General Mach Discussion / Mach 3, Erroneous movement in Z axis

« on: April 27, 2021, 01:43:36 PM »

Hello

I have a Small CNC rOUTER 60 X 60 CM.

Last days , Iam having a problem because Z axis sometimes is moving different distance that G CODE
Yesterday G zode indicate move from  Z-3 to  Z-6 and Z axis make a momement to z-11. (Look the picture).

I stop the Job and restart again from 100 lines before using Run from Here but some part of the job was ruined.
Area in Red contour in Picture 2

Other times the gcode indicate to move G0 Z20 for save heigh and move 1-2mm and cut inside the job

Iam thinking the cuold be a interference caused for electrical noise..

Iam usiing a Hobby CNC Pro Controller.

Stepper wires are unshielded

I have a Cable chain and inside are running
X Axis Stepper Motor conductor
Y Axis Stepper  Motor conductor
Router AC supply conductor (Makita 1Hp Router)

That failure is ocassionally. Yesterday was 1 time in the day and later was working for 5 hours withput problem.

iam thinking to take out of the cable chain the Z axis stepper motor conductor and leave it hanging outside the machine
away of other conductors.

Could you help me please?







 




 

2

General Mach Discussion / Re: Activating a solenoid using Mach 3

« on: August 15, 2011, 12:10:20 PM »

Hello

Im planning to move a 24DC motor in a new CNC Project.

I have a Hobby CNC pro controller and a C9 DC Solid State Relay from CNC4PC capable to drive from 6-60dcvolts motor and 10 A.

My plan is connect Relay to Pin 1 in CNC Controller, and activate in this way,

My question is.

Is necessary to connect some device between  Pin 1 and  5VDC  Relay connector?

Thanks in advance.

Rene

3

General Mach Discussion / Re: twinned motors; 2 sharing 1 driver

« on: August 27, 2010, 11:24:11 PM »

Hi

Bob La Blonde, thanks for your suggestions
Really, Iam trying to get more torque
because I will use a small steppers pulled
from dot printers. Your advice could be useful
if my steppers are more powerfull

tHANKS

Rene

4

General Mach Discussion / Re: twinned motors; 2 sharing 1 driver

« on: August 25, 2010, 12:19:47 PM »

Hi Sirling, thanks for your help
Can you send a diagram for connect both motors in paralell.?

I suppose that I must  too set Vref in controller for two motors in this way (0.75A x 2)= 1.4A x 0.1 = 0.14volts
using one stepper will be 0.75A x 0.1= 0.075volts

I think that if max current in both stepper is less than 3A, steppers will not be "starving=hambrientos" of current

Thanks in advance

Rene

5

General Mach Discussion / Re: twinned motors; 2 sharing 1 driver

« on: August 24, 2010, 10:13:38 PM »

Hi stirling

Sorry my ignorance, and time to response your answer, but I din't receive any email message from Mach forum. I didn't know about your answer.

Really my steppers are 8 wires, pull out from dot printers, I think they are 12volts 0.75A

My CNC controller only can drive  5,6 and 8 wire steppers,  4 wires is not possible. It's a HobbyCNCPro four axis controller capable to drive four  3A stepper motor in each axis.

Sorry I don't understan whats the meaning of *starving*. English is not my native lenguage, and Iam not capable to understand many words like this one.

I believe that you told me that this connection of two steppers in one axis will not burn my controller because is a chopper drive.. is ok until here?

And bad results can be that current *starving* my motors....¿What meaning this phrase?

Thanks in advance for your help

Regards

Rene

6

General Mach Discussion / Re: twinned motors; 2 sharing 1 driver

« on: August 17, 2010, 08:08:22 AM »

Mi controller has only four axis , and I need A axis for other purposes, Iam trying to use small stepper motor from printers, using two I can prevent racking and get more torque.

 2 rev sec is 120 rev min, I will use a 11 mm pulley then  at 100 rpm  I will  get 100 * 11 *3.14 = 3454 mm/min
is faster that I need.

My steppers are unipolar 8 wires,
RCAFFIN please, could you send me a diagram of suggested connections?

Thanks in advance for your help, other advices will be well received.

Regards

Rene

7

General Mach Discussion / Re: twinned motors; 2 sharing 1 driver

« on: August 16, 2010, 10:38:01 PM »

Hi,

Mi controller is a Hobby CNC Pro 4axis , 3A max per axis, I want to drive small stepper motors from dot printers , that are  12volts 0.75A each,I need to drive two steppers in one axis for prevent racking and gat more torque.  I can't slave motors in X and A axis  because I need A axis for other use.  Iam thinking if is possible  drive this two motor in  one axis considerating that current in both motors in less that total current in one axis. I have fear principally to damage chips in controller doing this.  

Do you think that this can burn my controller? Or bad results could be only lost steps and other minor problems?

Thanks in advance for your help.

Rene

8

General Mach Discussion / Re: Mach3 for embroidery machine

« on: July 26, 2010, 11:48:25 PM »

Hi, Link is exactly this, I checked right now

http://www.cnczone.com/forums/showthread.php?t=57404&page=33

Also you should read in  pag 34 a post about Regional Configuration in  WINDOWS-

rEGARDS
RENE

9

General Mach Discussion / Re: What speed computer are you running with Mach?

« on: July 23, 2010, 03:51:59 PM »

9 years old Asus P4 1.8Ghz, 1Gba RAM, and Savage 4 Mba AGP Card, in this antique PC, Mach Sends 23779 pulse/second . Runs also Artcam PRO 9, but never when Mach is working, CAM work is done in home's Pc. Use a USB stick for file transfer. My controller is a Hobby CNC 4 axis, 305 Oz/in stepper motors.

Rene

10

General Mach Discussion / Re: How start to run an Embroidery Mach profile

« on: July 06, 2010, 10:20:36 PM »

Thanks BRP549.

I set previously 0.001 , and after 999 in Radius correction, I din't see visible effects in screen
I must look well, when I test embroidery machine
Radius correct lid for A axis is ON now.

What effect causes exaclty Radius correction for A axis?
 Will ralent A axis movement accord X, Y axis mov lenght?

I have another  doubth,
 
IN  MOTOR TUNING are

X,Y axis  VEL= 1000 mm/mm
A axis = 216000mm/min=216000deg/min= 600rpm

Feed in Gcode = 216000.

When  GCODE is running, I suposse that A axis will run in 216000 deg/min
and X,Y axis, will run at max speed in Tuning motors= 1000 mm/min
Is correct?

Thanks

Rene