Question Stepcraft 840 winpc starter problem!

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jeyb
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27 Jun 2015 15:38 #22715 by jeyb

Stepcraft 840 winpc starter problem! was created by jeyb

hi, i just receive my stepcraft 840 usb , its ready to run with the winpc starter all works perferct but when i cut cycles the are not cycles see pictures , when i cut anything else exept cycle they cut perfect, did anyone know what is the problem?i use corel then estlcam then win pc like i does with my old stepcraft600 lpt for this i have the winpc economy, thanks!

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jeyb
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27 Jun 2015 16:23 #22719 by jeyb

Replied by jeyb on topic Stepcraft 840 winpc starter problem!

And the three cycles are cut the same , if i loose steps there are will not be the same right? I think is something with the speeds of x y z and the winpc starter they will not have the option for change speeds like economy.

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Mogul
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MF70 CNC und SC-1/416 ;-) mit Mach3

27 Jun 2015 16:41 #22720 by Mogul

Replied by Mogul on topic Stepcraft 840 winpc starter problem!

Hello jeyb,
it looks as if something had loosened from the mechanics. The deviations are too large for the Backlash

Greeting
Helmut

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jeyb
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27 Jun 2015 17:38 #22723 by jeyb

Replied by jeyb on topic Stepcraft 840 winpc starter problem!

I checked everything , all screws are tightened in position .

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bvs
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27 Jun 2015 18:38 #22724 by bvs

Replied by bvs on topic Stepcraft 840 winpc starter problem!

Try to shake work spindle axis manualy in all 3 dimensions.
I had a similar Problem after a 7 hour yob.

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jeyb
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27 Jun 2015 18:46 #22725 by jeyb

Replied by jeyb on topic Stepcraft 840 winpc starter problem!

Bvs you mean with my hand to move y x z up and down?do you think that something have stuck? But it is quet strange that it make it only in cycles, when i cut cubes there are perfect.

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MagIO2
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Zu viele Ideen und zu wenig Zeit

27 Jun 2015 19:53 #22729 by MagIO2

Replied by MagIO2 on topic Stepcraft 840 winpc starter problem!

In squares you only move one axis at a time. You have the same problem, but you don't see it. A square will have deviations of say 2/10mm from the planned measurements. Try it.

If you fix the problem you will have exact results with any shape.

SC 420 mit DIY parallel + ~~Proxxon mit Mod~~ + HF500 + SprintLayout + LibreCAD/QCAD + FreeCAD +~~WinPC starter/USB~~->EstlCAM + EstlCAM LPTAdapter + EstlCAM Handrad + DIY Vakuumtisch

Gruß, Andreas

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jeyb
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27 Jun 2015 20:39 #22733 by jeyb

Replied by jeyb on topic Stepcraft 840 winpc starter problem!

I must turn by hand the motor z y x photo 1 or from the the photo 2?

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bvs
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27 Jun 2015 21:42 #22738 by bvs

Replied by bvs on topic Stepcraft 840 winpc starter problem!

bvs wrote: Try to shake work spindle axis manualy in all 3 dimensions.

Work spindle = where you put your tools in.
When you shake and push and pull here you might find out where you have a unstable part in your cnc.

there must be a unstable part... find it!

Another problem could be Inbusscrews between steper and corresponding spindle not tightend.

search and you will find

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jeyb
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27 Jun 2015 21:56 #22740 by jeyb

Replied by jeyb on topic Stepcraft 840 winpc starter problem!

Ok thanks i will give a try

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jeyb
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28 Jun 2015 00:07 #22747 by jeyb

Replied by jeyb on topic Stepcraft 840 winpc starter problem!

Can i ask and something else, i use one lap top old with usb1 and windows xp , is there a case that the stepcraft cable is usb2 and i loose data in the transfer from the lap top to stepcraft and that effect the cutting? Is and that one posibility?

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jeyb
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28 Jun 2015 21:06 #22780 by jeyb

Replied by jeyb on topic Stepcraft 840 winpc starter problem!

Ok i find it the in y motor the screw was not tight enought , and now all is perfect

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Question Stepcraft 840 winpc starter problem!

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