Messages

5421

General Mach Discussion / Re: mach3 Gear DC motor control.

« on: October 23, 2012, 02:57:37 AM »

Saiz,

Check reply in your other post.

Tweakie.

5422

General Mach Discussion / Re: Motor problem

« on: October 23, 2012, 02:55:53 AM »

Hi Saiz,

Stepper motor is the cheapest method of control.

Basically, if you cannot afford to buy stepper motors then you certainly will not be able to afford servo motor controllers, amplifiers, encoders etc. that will be necessary to control your dc motors.

Not much help really but, to my knowledge, there is no easy (cheap) solution to what you are proposing.

Tweakie.

5423

General Mach Discussion / Re: New computer problem

« on: October 22, 2012, 10:27:54 AM »

Hi German,

If it's any help, my Advent PC initially had problems with the onboard graphics but fitting a PCI graphics card and configuring it first up in BIOS made everything just fine.

Tweakie.

5424

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

« on: October 22, 2012, 01:31:10 AM »

Hi Kurt,

Welcome to the forum.

I am looking forward to seeing some pictures of your build and of course some pictures of the things you make with your new machine.

Good fortune with your project.

Tweakie.

5425

FAQs / Re: Vacuum table

« on: October 21, 2012, 05:24:50 AM »

How large is the vacuum table are you considering ??

Tweakie.

5426

General Mach Discussion / Re: X-Y Axis movement on Reset

« on: October 21, 2012, 03:24:22 AM »

This is a function which can occur when an axis is disabled / enabled and it is the result of the previous micro-step position of a stepper motor controller being lost and the stepper motor then moving to the nearest whole step position. Basically it is normal behaviour.

Tweakie.

5427

General Mach Discussion / Re: Setup Of New Breakout Board

« on: October 20, 2012, 02:03:12 AM »

Check that you have the correct configuration of Ports and Pins in Motor Outputs for your Y Axis.
Unplug your X Axis motor and try it in the Y Axis output.

If you still have no response from your Y Axis then I would suspect that the driver chip for that axis is damaged.

Tweakie.

5428

General Mach Discussion / Re: just starting help Z axis DRO

« on: October 20, 2012, 01:42:47 AM »

Could you post a small example of your GCode ?? (Additional Options : Choose File)

Tweakie.

5429

General Mach Discussion / Re: erratic uncontrolled cycle starts

« on: October 18, 2012, 12:43:00 PM »

It would be extremely unusual for Mach3 to ‘throw a wobbly’ so I am assuming that your machine is not correctly obeying the commands it has been given. Check the Mach3 DRO’s, when it all goes wrong and if they do not agree with your machine position then it is a machine problem.

Often, electrical noise can cause strange things but I would suspect that your Direction signals are not being picked up correctly so a minus direction is continuing after a plus direction has been commanded (or visa-versa).

Perhaps checking all your machine wiring for bad connectors or poor connections etc. may be the way forward.

Tweakie.

5430

G-Code, CAD, and CAM discussions / Re: Looking for free or demo software to convert Rhino model to G-code

« on: October 18, 2012, 11:09:15 AM »

Hi Tom,

There is another, similar, software DeskProto http://www.deskproto.com/ which again has a trial version free download.

After trying them both I preferred using DeskProto but MeshCam has much better customer support for its product and it's use.

Tweakie.