Configuring the Homing Switches on Carve King

[merkidemis]

Ok, I'm lost. How do I configure the homing switches on the carve king using UGS Platform? Am I correct in thinking that if the machine hits these switches it should stop? (Mine doesn't, just sits there grinding away at the motors.) The instructions I've been able to find are "do a homing cycle" but being a noob I don't know what that means.

[deepdivetc]

What version of UGS are you using. I was using the wrong version, but I still have not tested with the new version yet.

[merkidemis]

UGS Platform 2.0 from the nightly build section.

[aforww]

Aug 3, 2017 23:05:25 GMT merkidemis said:

UGS Platform 2.0 from the nightly build section.

It should stop when doing a homing cycle. Type $$ and $22 should be =1. If it's not, you will also have to change $23-$27.

[merkidemis]

>>> $$
$0=10
$1=255
$2=0
$3=0
$4=0
$5=0
$6=0
$10=1
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=1
$23=0
$24=35.000
$25=1200.000
$26=94
$27=4.000
$30=12000
$31=5000
$32=0
$100=200.000
$101=200.000
$102=200.000
$110=3500.000
$111=4400.000
$112=3000.000
$120=240.000
$121=240.000
$122=240.000
$130=200.000
$131=200.000
$132=200.000

[aforww]

Ok. Make sure you have the limit switches plugged in correctly. Red to the left and on the right pins.

[aforww]

And to be clear, you are meaning when you do a homing cycle it just keeps on driving? Right?

[merkidemis]

I'll double check the correct pins. And that is correct. Also, I started up an engraving after following the instructions for Inkscape. On start it sucks the Z axis up and tries to grind past home on all axis (going up, back, and right when facing the machine).

Start of the G-Code I am trying to send:

%
(Header)
(Generated by gcodetools from Inkscape.)
(Using default header. To add your own header create file "header" in the output dir.)
M3
(Header end.)
G21 (All units in mm)

(Start cutting path id: path4173)
(Change tool to Cylindrical cutter)

G00 Z5.000000
G00 X275.645122 Y27.698999

G01 Z-1.500000 F200.0(Penetrate)
G02 X275.632975 Y27.565913 Z-1.500000 I-2.507496 J0.161773 F1600.000000
G02 X275.612556 Y27.423392 Z-1.500000 I-2.896288 J0.342237
G02 X275.585379 Y27.281972 Z-1.500000 I-3.105281 J0.523428
G02 X275.549306 Y27.130559 Z-1.500000 I-3.595975 J0.776704
...

[aforww]

ahhhhhhhh ok. Well, let's start from the beginning. I'm going to make this a short one. I suggest you read the BEGINNER MUST READ sticky.

What you are describing isn't a homing error. A "homing cycle is something you do prior to anything else as soon as you fire up the machine. You do a homing cycle by typng $H in the command line of UGS. There is also a button for it. What this does is cycle the machine to a known point. We call it machine zero. It's a known point that should never change. I highly recommend you do it every time you power up.

Now, what you are describing is an issue with the code running off the machine. This has three causes. The design is too big. Design origin is one spot but your work coordinate (WCS) or work zero is in another. Or you're just setting your work zero off.

[merkidemis]

Homing switches were installed incorrectly! I had + and - as Red and Black, so vertical instead of horizontal installation.

[aforww]

Aug 4, 2017 1:12:28 GMT merkidemis said:

Homing switches were installed incorrectly! I had + and - as Red and Black, so vertical instead of horizontal installation.

Well good thing we fixed that before you hit $H lol

[merkidemis]

Homing works just fine now. So these aren't an actual stop then and the machine will happily go through them?
\For the design I am thinking my coords are flipped, though after this image I did do a $H and then Reset Zero which moved the yellow cone to the intersection of the red and blue lines.

[aforww]

You're tracking now. The intersection. Of blue and yellow indicates where zero is in your design. So your WCS zero should be lined up lower left of the area you want to mill.

[Derek the Admin]

Aug 4, 2017 0:09:36 GMT merkidemis said:

>>> $$
$0=10
$1=255
$2=0
$3=0
$4=0
$5=0
$6=0
$10=1
$11=0.010
$12=0.002
$13=0
$20=0
$21=0
$22=1
$23=0
$24=35.000
$25=1200.000
$26=94
$27=4.000
$30=12000
$31=5000
$32=0
$100=200.000
$101=200.000
$102=200.000
$110=3500.000
$111=4400.000
$112=3000.000
$120=240.000
$121=240.000
$122=240.000
$130=200.000
$131=200.000
$132=200.000

Change 130 and 131 to 432 please. Also change 132 to 95. That firmware went out without the right values. Change it by typing $130=432 into the command line and hitting enter.
Not doing so will cause homing fails if you start more than 300mm away from the switch.

[jkendall]

Aug 4, 2017 1:12:28 GMT merkidemis said:

Homing switches were installed incorrectly! I had + and - as Red and Black, so vertical instead of horizontal installation.

Well that would do it! Tell me this isn't your only derp on this build. Tell me I'm not the only fool