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Hi Jim, you were right: – it was the 68v power supply. My friend put an oscilloscope on the power supply. As soon as a load was applied the signal crashed the whole thing went crazy. Fitted a new...

I examined my CNC control box today. It consists of the following components: –
3 leadshine stepper drivers
1 breakout board
1 x 12v/5v power supply
1 x 68v power supply

When switched on,...

Hi can somebody help me please?
I built my CNC machine about 14 years ago. Up until about 2 months ago, the machine had run perfectly. Then, when I switched it on, none of the axes would run...

[B]SORTED

I used shielded cable, grounding the shield to the controller case and the problem was cured.

thanks for all inputs.

regards,
Gareth

Thanks for that info. i have ordered some shielded cable.

Gareth

so it can't be that. Do you think it is worth trying a shielded cable?

Thanks for your reply. I can't remember the make but i know that inputs and outputs are optically isolated. i believe the voltage in question is 5 v.
The debounce function is worth a try,but as you...

Hi,
I have been trying for several weeks to set up the auto-zero function in Mach 3. I have tried several scripts, which I am sure work ok (from the amount of positive comments)
My spindle is...

Thanks Gerry

I have had very little luck over the years with various auto zero scripts I have tried Recently, I saw a very good one, and would really like to use it. I copied and pasted the script using the the...

Hi Paul,
Thanks for your reply. My vernier caliper is not digital and not good enough for truly accurate readings. Since I first posted, i have ordered a dial indicator, which will hopefully solve...

Hi,
My machine is working very well for general use, But now I am trying to v-carve pictures in wood and am having limited success. Since the max depth of cut is 0.04", I probably need to set up my...

Thanks Al,

I read that page you linked to. It helps a little.

Gareth

Hello,
I have just rebuilt the control system for my CNC. The 1 small problem I have is that the limit switches are tripping Mach 3 for no reason. This did not happen before. I have played around...

Thanks for all the input guys. I won't attempt to build my own, but 2/3 total ampage sounds like what I should be aiming for.

best regards,
Gareth

Thanks for the reply Matt. I have just had an email from a guy who has a current display on his system and he says that even running 4 motors simultaneously, he has never seen it go over 3.5A....

Thanks for that Art. I thought the 500W supply was inadequate and I would end up in the same position I'm in now.

Gareth

Hi,
I am rebuilding the control box for my cnc. I currently have an integrated bob and stepper drivers. The problem has been that these driver cards can only supply 3A, whilst the motors require 5A...

Solved it !!!
Thanks for all your help here. I followed the optimisation guide that Gerry put a link to. When I changed the driver from ACPI to standard PC, everything worked fine. Also disabled the...

Thanks Gerry & Neil,
When I turned off ACPI in the bios the PC would not boot up. I had already disabled all power saving features. I have just printed the optimisation guide that Gerry popinted me...

Hi,
Having got my machine working well, I decided to replace the old computer, which was subject to ill-timed crashes with a new 1. The only things running on this PC are WinXP and Mach3.

When I...

Hi,
I want to do some 3D carvings in slate. Slate is regarded as one of the softer stones. Problem is, my home-built machine is wood, so I can't use water cooling. I saw a video on you tube, dry...

Bosch make the best tools I have ever owned. I have many and they have given great service. I was pretty much settled on the Kress, but the comment that they get bogged down on deeper cuts has...

I think you just answered my question. I was just about to pose a question about Kress routers.

Thanks everyone for your input

Sorry--- forget that last post-- just realised that was Amazon USA. It is listed on Hitachii site, but nobody in UK seems to stock them

Would this be the equivalent of the American Hitachi?

Amazon.com: Hitachi M12VC 2-1/4-Horsepower Variable-Speed Router: Home Improvement

Read a review and it was good. I've gt a 110 box, but...

Thanks for that Hazard. Porter Cable will not do because we are on 240v in Wales. I found the equivalent of the Bosch model you suggested. The model is "Bosch gmf 1400ce" in Europe.
My initial...

I built my first cnc machine about 3 months ago. I fited it out witha Dewalt 600W laminate trimmer. Yesterday the brushes failed. It is still under guarantee, so I have sent it for repair, but it is...

Update;--
Thismorning I found a conflict in the Mach 3 settings. The machine is now running well and the motors are thankfully much quieter.
Thanks for all your help.
Hub;- I checked out Zapp. 3...

The high pitched noise in parallel mode did not really bother me. Probably at my age I have lost some high frequency hearing anyway. But this low growling noise is pretty much unbearable. Guess I...