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Messages - steve_p

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21
General Mach Discussion / Re: minimum spec for pc with galil
« on: November 30, 2009, 09:39:11 AM »
thanks for the replies.

since kenny says he has had success running mach and a galil on a 500mhz processor, i might give it a try- i saw some slot7 550mhz cpus on ebay for under $10, so worth a try. I've found a few modern motherboards with isa slots that are in production, they're generally made for industrial automation applications, so seem to be about double the price of a normal mobo, but in the end it probably makes sense to go for the faster option. However, I'll try the 550mhz option and report back.

by the way kenny, how do you find the 1750 as a machine control? I bought it on a whim really, I was slightly nervous about entrusting 2.5kw servos moving a 100lb spindle to just the pulses on a printer port... (no disrespect to mach3, it's more the pc hardware/breakout board I'm wary of), so I thought putting a tried and tested unit between the pc and the motor drives might be prudent...


22
General Mach Discussion / minimum spec for pc with galil
« on: November 28, 2009, 09:21:18 AM »
Hi, I'm in the planning stage of building a 3 axis router with brushless servos which I plan to run with mach

I was thinking it might be a good idea to take the strain off mach by using a hardware motion board, so I bought quite cheaply an advantech mini industrial pc with a galil 1750 card already installed (and a few galil servo drives included too..) It all appears really clean, like new (the drives are new in their boxes, so it may well all be unused.)

I see from the forum that the mach drivers for galil seem to work well now, which is great (well done everyone who puts their time into this stuff!), so I think I will end up using the card, but the pc is only 233mhz. It's a socket7 board, and it has jumpers to change the core/bus voltages and clock speed, so I think I could get away with swapping the cpu for at most a 550mhz pentium (the fastest cpu supported on a standard socket7 it appears.)

I know 1ghz is the recommended minimum for mach3, but since it won't be actually running the drives directly, is it possible to get away with a slower machine? It won't be running any CAM software, it'll just be in the machine.

It's no big deal if I can't use it, it's just a nice compact chassis to fit into a machine, with filtered fans etc. If I don't use it, I'd need to find a faster motherboard with an ISA slot for the galil (chucked plenty of those out over the years!)

thanks


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