Messages

991

General Mach Discussion / Re: Display of analogue input?

« on: October 17, 2016, 04:47:45 AM »

If i have the DRO defined as three digits, no decimals do i need to concern myself with the sum being fed to it??

Say the input is reading 3189 then my sum is SetUserDRO(1010, GetInput(82)/27.3) which gives me a value of 116.813% (range is 0 to 150%)

Can i ignore the decimals?

992

General Mach Discussion / Re: Display of analogue input?

« on: October 16, 2016, 10:55:35 AM »

No worries, got feet up here too, drinks time

I seem to prefer macro pump but will look up modbus etc

Have added a user DRO to screen

993

General Mach Discussion / Re: Display of analogue input?

« on: October 16, 2016, 09:57:33 AM »

Well i'll have to presume they are linear, most 0-10v stuff seems to be.

Modbus or GetInput(82) for channel 2?

Not read modbus before

Looks like 10v = a value of 4095 with GetInput(xx)

A division by 27.30 should give me 150% display for 10V

994

General Mach Discussion / Re: Display of analogue input?

« on: October 16, 2016, 09:37:09 AM »

Nice

I guess % is easiest - if the 0-10v = 0 to 150% then 6.67v is about 100%

Will have a play

995

General Mach Discussion / Display of analogue input?

« on: October 16, 2016, 08:24:06 AM »

This is what i have....

CSMIO-Ip/A with spare analogue input 0-10v
VFD with analogue output programmed to show motor power in kW ranging from 0 to 150% as a 0-10v signal
Mach3

What i was thinking of is...

Adding a DRO to the screen that shows spindle power, either as kW or as % from 0 to 100% etc

Not important - just a bell or whistle but you know how it goes

So, is this possible? I am unsure as to the method of connecting the input signal to the DRO, the electrical side seems pretty well matched so thats easy.

Maybe a brain?

996

General Mach Discussion / Re: Bridgeport Knee Mill Conversion?

« on: October 16, 2016, 08:04:25 AM »

Here we go, nice fun little project for a Sunday morning....

Fits perfectly, works well and used loads of tool changes

997

General Mach Discussion / Re: BB card vs motion control card

« on: October 16, 2016, 08:01:01 AM »

If i'm wrong someone will correct me but I'm fairly certain the the parallel port will not handle the encoder signal and pulse rates needed for servos very well. My encoders are 10,000 per rev and motors can do 3000 rpm so it needs a pretty fast connection.

998

General Mach Discussion / Re: BB card vs motion control card

« on: October 16, 2016, 03:54:34 AM »

One is that you get away from needing a parallel port - newer pc's need a card adding and still get stuck with 32bit OS.

USB is a step ahead but can sometimes play up a little, I think the best option is ethernet.

I'm not sure but i think i also read that motion can be smoother with external controllers.

999

General Mach Discussion / Re: Bridgeport Knee Mill Conversion?

« on: October 15, 2016, 02:45:08 PM »

LOL

Already found a use for a bunch of aluminium offcuts - the support bracket to hold the auxiliary spindle when not in use. Will be mounted up where the lifting eye goes on the top of the ram.

Designing it now in fusion - loads of tapped holes, chamfers, multiple tool changes, facing, boring, counter-boring the works

1000

General Mach Discussion / Re: Bridgeport Knee Mill Conversion?

« on: October 15, 2016, 07:19:39 AM »

Was recently asked for some videos, here we go...

Rigid tapping...
https://youtu.be/1UOak0qTHsY

Full machine conversion walk-around...
https://youtu.be/utjrP_94KIk