Fingers crossed it'll cut ally

[blackburn mark]

Errrr..... has anyone had any experience with wiring home switches to an X axis thats driven with two steppers ?

in mach setup documentation it recomends putting a homing switch on each of the two x-axis drives to correct for lost steps and racking which im getting plenty of as im in the tuning stages of my setup... i only have enough inputs for 3 homing switches and an e-stop on my driver board

how do i conjure up a forth input ???????

[Jonathan]

A PCI parallel port card would get you plenty more inputs. There's probably a more elegant way to do it though...
Theoretically 3 inputs is enough if you put the switches in series/parallel etc with each X home switch on separate input - it's a matter of if mach3 can handle it. I'd like to know for my router...

I had a look at giant cod (what an odd sentance!). There's some interesting things but it's still a bit more expensive than www.hobbyking.com. Maybe I could use an E-bike controller on my motor.

[HiltonSteve]

Jonathan - Just noticed that your after a 100A 48v motor controller, I have got a few kicking around if you want one.

The ones I have take any voltage from 24 up to 48 and also can cope with anything up to 200A, fully programmable through 3 buttons on the front.

Let me know if you want some more information.

Oh, and I am sure the price will be right!

[Jonathan]

Jonathan - Just noticed that your after a 100A 48v motor controller, I have got a few kicking around if you want one.
The ones I have take any voltage from 24 up to 48 and also can cope with anything up to 200A, fully programmable through 3 buttons on the front.
Let me know if you want some more information.

I'm definitely interested - those ratings should make it pretty indestructable! Do you have a datasheet or something for them? Is it sensored or sensorless?

Oh, and I am sure the price will be right!

Hehe, I hope so - just spent £274 on linear bearings and ballscrew so I've not got much money left!

P.S. I vaguely recall you posting about these before..?

PoKeys

That does look good, but very expensive compared to PCI parallel port card on eBay for £3.52.

[M250cnc]

That does look good, but very expensive compared to PCI parallel port card on eBay for £3.52.

Jonathan while it is correct that you can buy cheap PCI Parallel Port cards on Ebay they don't all work with Mach3 some don't have the option of using pins (2-9) for input or output. The PoKeys has dedicated drivers for Mach3 it even has a sub forum on the Mach3 support site.

A bit like comparing a Tata Nano against a Ferrari they both have four wheels, one is a lot more expensive which one would you prefer. ?

Phil

[Wobblybootie]

Just a quick question ... Any idea if it works with EMC2??

[M250cnc]

Just a quick question ... Any idea if it works with EMC2??

If you are talking about the PoKeys in theory yes as it is classed as a standard USB device.

But it would need someone to build the the driver whatever and i am not that person, the EMC2 has other options that mean the best guys do not want to bother and Boris the seller of the Pokeys doesn't have the desire either sadly as i have already asked him.

Phil

[blackburn mark]

Tata Nano against a Ferrari

think ill go for the nano, i can afford it

iv weighed up all your posts and its all getting a bit rocket science so im going for the simple and cheap option
iv orders a pci ribbon extender and a pci parallel port, i should be able to sneak under my graphics card with that

all that for one more input

[M250cnc]

Mark list all your inputs and how you are using currently using them.

Phil

[blackburn mark]

A PCI parallel port card would get you plenty more inputs.

i was worried someone would say that... my graphics card is blocking all my PCI slots... ill find a way.
im not going down the "series/parrallel" route with switches, homing and soft limits makes the most sense to my eyes

Just noticed that your after a 100A 48v motor controller

might be a winner :)