Messages

7871

Third party software and hardware support forums. / Re: I need help with enabling inputs, Huge source of free Bridgeport Boss manuals

« on: May 24, 2010, 02:04:03 AM »

Perhaps a daft suggestion but could you not PM Darek http://www.machsupport.com/forum/index.php?action=pm;sa=send;u=257 and seek his advice.

Tweakie.

7872

FAQs / Re: need help

« on: May 24, 2010, 01:53:55 AM »

The Vectric range of software products are good. http://www.vectric.com/

Tweakie.

7873

Show"N"Tell ( What you have made with your CNC machine.) / Re: Some New Gifts of Silver

« on: May 22, 2010, 12:27:06 PM »

Great work Dave, building up the Brownie points eh.

Chris will have to watch out when you start on the rings  .

Tweakie.

7874

General Mach Discussion / Re: How Many Lines of Code

« on: May 21, 2010, 05:43:28 AM »

Good point Derek.
Perhaps we should have a competition ?.

This little chappie (code courtesy of Kent) runs into more than 342,000 lines.

   

Tweakie.

7875

General Mach Discussion / Re: How Many Lines of Code

« on: May 21, 2010, 01:50:37 AM »

This is the official line.

'Mach3 has a limit of 10,000,000 lines of Gcode even after licensing'.

Tweakie.

7876

Third party software and hardware support forums. / Re: Setting up a PCi Parallel card to work with Mach 3

« on: May 19, 2010, 02:00:51 AM »

No worries. 

Glad you got the problem sorted. Looking forward to seeing some pics of the things you make with your new machine.

Tweakie.

7877

General Mach Discussion / Re: Combining grounds of 12VDC logic and linear unregulated HV

« on: May 18, 2010, 06:01:33 AM »

It is indeed that simple.

If you connect the minus end(-) of your HV supply to ground then the other wire will be +72 Volts with respect to ground.

If you were to connect the plus end(+) of your HV supply to ground then the other wire will be -72 Volts with respect to ground.

Tweakie.

7878

General Mach Discussion / Re: Combining grounds of 12VDC logic and linear unregulated HV

« on: May 18, 2010, 04:38:07 AM »

Typically, PS schematics show DC+ and DC- output. So my assumption is that with a linear unregulated PS, the DC is split into half positive and half negative? i.e. with a 72V output, is it +36 and -36?

Do you have a center tap on the psu output then ?. (3 wires)

If it is just a 2 wire output - then connecting the minus end to ground will make it 0 Volts and the other end will be +72 Volts. There will be no negative voltage levels.

Tweakie.

7879

Tangent Corner / Re: Welding a motor mount

« on: May 18, 2010, 01:52:06 AM »

I think the rule of buying second hand stuff comes in here. If it's cheap enough then it's worth the chance, If the seller wants proper money then don't take the risk.
(if that was electric welded then some of the current could have gone through the bearings which may prematurely fail as a result. The heat may have compromised the windings insulation or magnetic flux characteristics etc...) But if it's cheap enough - go for it.

Tweakie.

7880

General Mach Discussion / Re: Combining grounds of 12VDC logic and linear unregulated HV

« on: May 18, 2010, 01:40:54 AM »

Like most things, there is always a difference between theory and practice. I think you just have to connect it up, try it and see (common connection at the drive end). From my experience most electrical noise issues have been ground or earth loop related so if you are unlucky enough to get noise problems that would be a good place to start.

Tweakie.