Universal G-Code Sender v1.0.5 released!

ThatOtherGuy435
Posts: 108
Joined: Sat Feb 16, 2013 2:08 pm

Re: Universal G-Code Sender v1.0.5 released!

Post by ThatOtherGuy435 » Thu Mar 07, 2013 1:16 pm

I would also be very interested in that schematic, as I'm in the middle of designing an enclosure and might be worth integrating that right in.
ShapeOko1 #??? - 1000mm Dual-drive Y, Double X, S2 gantry motor plates, ACME Z-Axis.

cvoinescu
Posts: 4442
Joined: Thu Jul 19, 2012 6:50 pm
Location: Camberley, UK
Contact:

Re: Universal G-Code Sender v1.0.5 released!

Post by cvoinescu » Thu Mar 07, 2013 2:24 pm

Here goes. Please excuse the hand-drawn style I have selected in the schematic capture software. :)
optocoupler_schematic.png
optocoupler_schematic.png (57.56 KiB) Viewed 2210 times
The very low value for R2 is necessary because Arduino's own USb-to-serial chip drives those pins through 1 Kohm resistors. Note that this serial module can not reset the Arduino, which I see as an advantage (most of the time).
Proud owner of ShapeOko #709, eShapeOko #0, and of store.amberspyglass.co.uk

sa now
Posts: 7
Joined: Wed Dec 26, 2012 4:03 pm

Re: Universal G-Code Sender v1.0.5 released!

Post by sa now » Wed Mar 27, 2013 5:01 pm

hai all..
i need help. in these setting $7=28 (step port invert mask binary = 00011100). how to reverse y axis. coz i change stepper moto from front to back side.
tq...

PsyKo
Posts: 430
Joined: Thu Aug 30, 2012 8:42 pm
Location: France

Re: Universal G-Code Sender v1.0.5 released!

Post by PsyKo » Thu Mar 28, 2013 4:25 pm

sa now wrote:hai all..
i need help. in these setting $7=28 (step port invert mask binary = 00011100). how to reverse y axis. coz i change stepper moto from front to back side.
tq...
You already have a topic on that exact same subject here : http://www.shapeoko.com/forum/viewtopic ... 371#p11371
Please don't spam topics with unrelated question. It makes it more difficult for people when searching for clear information.

Anyway here is a bit of reading that pretty much explains everything about Grbl :
https://github.com/grbl/grbl/wiki/Configuring-Grbl-v0.8

More specifically about inverting directions :
https://github.com/grbl/grbl/wiki/Confi ... -intbinary
Shapeoko #736
Kress 800, Z Axis upgrade, dual Y, 600mm X&Y rails, metal spacers and V Wheels, home switches, 4th axis
Goko - Free CNC Control Software - http://www.shapeoko.com/forum/viewtopic ... 380#p44380

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