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Olivier: Actually, this question revolved around my Bridgeport mill. In this case I'd like to get "feedback" to MACH2 and to a readout of RPM, but I don't think the number is as critical as in a

Not enough precision for threading. Even if you could do a PWM to pulse convertor it will not work. You will need a true encoder, home made or not. More, it will be simpler. For threading you don't

You are wrong, it is the opposite. It has been collectively decided for the first mach2 threading implementation that carriage moves need to be slave of the spindle. This is for compatibility with

I noticed that. Does that mean they can't be got? Or does it mean there will be a long lead time? Or maybe you have to buy 10,000 of them? I've found that to be the case many times. Sometimes

http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/message/70675

Hi Jeff: The spindle control for speed is not a necissity for threading, a manual speed control will work fine. The only prerequisite for threading is a sensor to detect the actual spindle speed

John: To use the index input you must be using a *.lset screen layout. It is not good enough to rename Y to Z, you must use Z properly. You'll know if the index is working by looking at the

I notice that "index pulse" can be checked on the parallel input to pick up the true speed of a machine. Can the PWM frequency of a VFD be used for this? If so, can it be scaled in MACH2 to

Note: This machine is one of those 3 in 1 combinations so to switch to lathe should I be setting up a new lathe screen using XY? Sorry that previous post didn't include this 3 in 1

I am considering changing my manual Logan lathe to CNC. I am unclear as to how the carrage speed is coordinated with the spindle feed to allow threading. Is a VFD to an induction motor on the

Hello Art, Can you please post the sequence needed to initialize the OCX Maybe some demo code you used to test the OCX. I can use the OCX in VB without crashes, however I did not get any motion yet

Not only that, but it has its CAD package effectively free too!! ... if you want a CAD package that can do DXF export at a VERY good price ( err .. nothing!! ) then it is recommended. The download

By the way, Art wrote the hookup scheme... I just reitterated... wrote: pulse the reading port the

Okay! After not being able to sleep, I got the spindle index pulse to register! Apparently there was insufficient contrast between the background(pulley) and the white reflective tape. Taking a

Daniel Take a look at Dolphin CAD/CAM, a download is available from www.dolphin.gb.com <http://www.dolphin.gb.com/> . This product has CAD, Mill, Turn, Wire EDM, Involute Gear Design

friendly. maybe the cheaper visual mill? What did you need it for anyway? mill lathe? router? engraving?

I tried to order one of these probes and they don't have them in stock. Jim

google for 'raster vector' and there is a freeware program called 'win topo' .. seems to work for me.

With Mach2 just either check or un-check it should take it either way. Jim

--- In mach1mach2cnc@..., "rrc62_03782" <rrc62@a...> wrote: Someone > posted an interesting probe switch on another board but it is a normally closed > switch. > >