2021年2月2日 · Alternatives : external EEPROM (takes PCB space, increases complexity), using a SD card (but what if user removes it?), using a MCU with bigger flash (overkill, GRBL stores everything in mere 1kB), using a MCU with smaller flash pages / sectors.

Hacker [12344321A] has built a clever open-source pen plotter having a frame made from odd-shaped PCB panels (Chinese). It holds an ordinary drafting pen and draws on a small writing platform...

2022年12月26日 · Pen plotters are slow. Is speed important for your project? Aside from modern felt tip or gel rollerball pens you can still get pens designed for the old HP style pen plotters.

2023年1月21日 · So far, I’ve put on a laser head, a vinyl cutter, and now a pen plotter. The entire effort in building the pen plotter consisted of drilling holes in a piece of thin scrap plywood and...

In hindsight, FreeRTOS is probably overkill for a simple project such as this, and it could be rewritten using protothreads or even just as a plain event loop. However, implementing GPIB and serial IO as two independent tasks made it easier to reason about their interactions, and allowed the GPIB implementation to be a simple piece of ...

2022年3月16日 · There are plenty of massive commercial router table systems this big, but they are significant overkill structurally and priced accordingly. The light duty laser cutter frames (or any similar gantry kits like the OpenBuilds ACRO) all …

On the CNC shield, I opted for TMC2208 motor drivers with NEMA17 Stepper Motors (1.8° 77oz - probably overkill), and I'm really happy with the lower noise and performance so far. I dialled the Vref down to about 0.8V on each driver (ymmv) and with the fan and heatsinks it seems happy.

2019年5月18日 · Introducing a delay between sending commands solves the problem, but at the expense of very slow plotting. This was solved with a very clever use of the HPGL command to send the pen position,...

2020年7月23日 · Anyone have recomendations for a pen plotter that meets the following standards: That's it. Of course, the bigger area it can cover the better and also ideally the faster the better. For a project in the past I used the machine below but because it had no homing I had to realign it manually constantly.

This instructable details my build of a CNC plotter using an OpenBuilds ACRO system frame. I have not covered every single step however I hope it gives an idea of the process, some resources that I found helpful and also what can be achieved! A summary of the CNC tool chain is shown and this instructable will cover: