Messages

21

General Mach Discussion / Re: Problem with cutting

« on: August 22, 2008, 06:38:03 PM »

Hi Hood, I have not done what bower suggested as I do not know how to copy the XML
or where to find it.

Can you give me an idiots guide to doing it.

Once again sorry for the ignorance but computers are not my thing.

Thanks ray

22

General Mach Discussion / Re: Problem with cutting

« on: August 22, 2008, 10:52:23 AM »

Hi Hood,

I tried what you said but in gen config it was set to CV as was my laptop.

Tried entering the G64 but it made no difference.

I might try uninstalling mach and then reinstall to see if that works.

Whats your thoughts of this.

My son thinks it might be a problem with the com port settings within the computer but that is way over my head he said he will check this out at the weekend.

So I am still scratching my head on this one

Thanks Ray

23

General Mach Discussion / Re: Problem with cutting

« on: August 21, 2008, 06:42:22 PM »

Hi Hood, I will try in the morning but I am hopeful that this is the answer

Thanks again and I will let you know how I get on.
Ray

24

General Mach Discussion / Re: Problem with cutting

« on: August 21, 2008, 06:21:05 PM »

Hi Hood,

Thanks for the advice is the cv and exact stop in the config menu if not where is it

Sorry for my ignorance but still getting my head around Mach2/3/4

Thanks again
Ray

25

General Mach Discussion / Re: Problem with cutting

« on: August 21, 2008, 01:53:53 PM »

Hi Steve, I will give that a go

Thanks for the reply
Ray

26

General Mach Discussion / Problem with cutting

« on: August 21, 2008, 11:34:13 AM »

Hi All, I have the most puzzling problem.

I have built two cnc routers I used the same routout controls and the same stepper motors and both machines work fine until I noticed that one of the machines
when cutting circles seems to step around the circle where the other machine cuts with a smooth action.

On trials I did cutting the same size circle.

The machine that cuts in a smooth action cuts 5 times faster using exactly the same settings as the other machine.

Now here is the funny part when I cut a rectangle of the same size the machine that cuts fastest on a circle is now the slowest, not by as much though

I use a PC on the one that cuts a circle with the stepping motion running windows XP the other machine is a laptop running windows 2000

I have switched machines with the computers and the results transfered to the other machine.

So the laptop works fine on both machines
 
The PC works both machines but with the same result when cutting circles ie slower and with a stepping motion

The only difference I can see is the laptop is running windows 2000 and the PC windows XP and has a lot more computing power than the laptop

Any ideas as to the problem

Thanks
Ray

27

General Mach Discussion / Re: Stepper motor size

« on: June 29, 2008, 06:55:40 PM »

Hi I am in the UK Northumberland, I will check out those motors

I have been caught out before with import taxes they can be expensive.

My sister has just been asked for £40.00 tax for a present from her daughter in the US

Thanks Ray

28

General Mach Discussion / Re: Stepper motor size

« on: June 29, 2008, 01:34:59 PM »

They are 4 wire motors
Ray

29

General Mach Discussion / Re: Stepper motor size

« on: June 29, 2008, 12:52:44 PM »

Hi, That sounds good advice, I think I have sorted my drive I fitted a 3 to 1 reduction and this works

The speed is not as fast as I would like in line with what you found but it does work.

I will try the the Gecho as you suggest as this would seem the best option before I go to either a larger motor
or I was considering buying a more substantial control system but they are £750.00

Thanks again for all the help and advice
Ray

30

General Mach Discussion / Re: Stepper motor size

« on: June 28, 2008, 06:45:03 PM »

Thanks for that I will try Ricks method I like the idea of someone else / program working it out
my usual method is try it and see but I need to get this right first time

Thanks again 
Ray