I’ve got a Raspbery Pi 2B and a touch screen sitting here doing nothing. Was considering using it as a local sender for a grbl based controller… but before dumping a lot of time into it, I’d like to know my options and limitations
I know there are multiple programs I could use, (and apparently that now includes Easel). does anyone have experience with particular ones on the RPi? are there any limitations or drawbacks I should be aware of?
Is the UGS visualizer still broken for Pi? if so that might be a no go for my use. I like breaking up jobs to have secure stop points, so having a visual of which segment is going to run next is helpful.
Yup…It’s what I use if I don’t send from Easel. It’s fairly easy to set up via the command line…even if you are inexperienced…I actually just ended up copying and pasting from different sources on the web…the Github page has pretty much everything you need. I like it because it’s similar to Octoprint…which I like…but it’s tailored to CNC. I can open it on my phone and view a webcam feed if I need to walk away from the machine for a minute. I have it setup on a Pi3 but it should work just fine on a Pi2. GRBL Web was my initial choice. The RPI image should work fine on your Pi2. It wouldn’t boot on my Pi 3 so I was going to install it via command line…but ended up finding the documentation for CNC JS better so I went with that.
I just set up a Pi3 for a code sender and it works great. I found bCNC, it is programmed in python and works well with Raspian on my Pi. There is a visualizer that works and it also has a tool to profile your work surface.
That is correct, I have not tried it yet but it was designed for etching circuit boards where line width is important, I believe it will also work when v-carving smaller letters to get a consistent depth across a less than perfectly level work surface. I did see a video where they did a v-carve on a baseball bat.
Here is my really dry videos on how to build a RPI CNC controller. I have been using it on my machine for the last 8 months or so. Other videos I saw on the subject were not very informative and I was trying to fill in the blanks.
I did moved from the RPI back to a conventional Win/Pc setup because of the visualizer not working, but also because UGS was so slow to boot. Thanks to you I know about the Asus Tinker Board. Glad to read that the visualizer is working on it. What about boot time? Is it fast?
Also, what OS do you use?
The Tinker S board is significantly faster than the Pi2 B+, but understandably still slower than a PC, but not that much. My current CNC controller is Pi 3B+ based, but I will be swapping in the Tinker S soon.