This post is just a convenient place to store links to some of my X-carve information.
Positioning Errors One of the most asked about troubleshooting problems with a new X-carve is positioning errors. Almost all positioning errors are corrected by adjusting the various parts of the machine. Very few of the problems are actually due...
Reading time: 1 mins đź•‘
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The potentiometers on the gShield are setting the Vref (Voltage Reference) level on the TI stepper motor driver chips. This determines the current limit for the driver. You can measure this voltage at one of the potentiometer pins (see photo) and...
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Looking at things from the grbl perspective, the term “limit switch” only applies for the X-carve if you use hard limits ($21=1) . Looking at things from the grbl perspective, all other cases for the X-carve the switches are “homing switches”. ...
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Direct access to grbl. You can interact with grbl directly to isolate problems at the low level. To do so, you need to use a terminal type program to issue commands and get responses from the serial port that has the Arduino attached. Some of...
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If you are having difficulties with your homing switches you can do a quick test with Grbl to see what the state of the homing switches is from Grbl’s point of view. NOTE: In order to use this procedure you need to have grbl Version 0.9j or later...
Reading time: 14 mins đź•‘
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Got a carve running and you need to make a quick change? Don’t want to start over, just stop for a while? Grbl provides a method for pausing a G-code job without losing machine position. The pause function is called “feed hold”. You can issue a...
Reading time: 4 mins đź•‘
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Recent discussions of homing switches and various modifications in the homing switch technology used made me wonder just how accurate the lowly mechanical homing switch is. So I ran a test to see if I needed to consider an alternate technology. ...
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I’ve been helping folks get their X-carve machines up and running. I’ve learned a lot. One of the things that I have noticed is that the grbl parameters seem to be inconsistent, especially when the Arduino has to be re-flashed. Long story short I...
Reading time: 3 mins đź•‘
Likes: 1 ❤
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