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Topics - cloudy

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1
SmoothStepper USB / ESS Runs out of data when cold!
« on: February 11, 2014, 04:20:29 PM »
Trying to tie down what seems like static build up or grounding issues on my machine. In summer my machine was fine - would be happy sitting through 3 hour jobs without issue. Now its cold (and condensation increased?) I get ESS out of data every few minutes!  I've done the usual, reducing the frequency and have a repeating ping log running to ensure that the ethernet comms don't glitch (they don't)
Tearing my hair out as to what the cold does to change matters! Any good ideas?

What can cause the ESS to give up in this way? (besides lack of data from the PC)

Thanks,
James

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SmoothStepper USB / Air blast and FT_IO_ERROR s
« on: December 18, 2012, 04:32:51 PM »
Hi there,

I'm trying to chase some sporadic USB faults with my smoothstepper driver on a large rack&pinion DIY gantry router table. VFD+ 2.2kw spindle

The problem seems to come from a new airblast system I've built using a fridge compressor, plastic airline and a welding nozzle...

The issue seems to get worse over several hours of use, at which point the USB driver will error within 5mins of a cut. The issue seems to go away when the air system is off..

It's electrically isolated from the rest of the system, sharing a ground at the compressor end, and the compressor runs continously. I will try a ferrite ring on the compressor power cable, but I'm wondering given the way it gets worse as time goes on, if it's static buildup at the nozzle? Would grounding the tip dissipate this do you think? I'm not sure if it's building up on the hose itself (which runs down the cable tracks with all the other sensor cables)

is an FT_IO_ERROR only caused by a problem between the smooth stepper and the PC - not by breakout issues? Is there any way of further diagnosing this? I have to disconnect the breakout AND pull the usb out to reset it....

Many Thanks,
James


3
Just completed the X/Y conversion of a manual mill - but now I need to make some parts for the Z axis!

I've designed the part in solidworks, then taken into lazy cam and imported g code into Mach3  - everything looks good with the path. What I don't understand is at what point I tell it the diameter of my endmill - I can obviously oversize the part in solidworks, but i'd rather able to cut right-sized parts...

I see there is a tool setting in mach3 main screen, but what does this do? How do I tell the software whether its cutting the external edge or cutting a hole (ie which way it needs to compensate)

Any help (in beginner terms!) Would be fantastic! Thanks all

James

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