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Author Archives: davidcrocker
Improvements to the Hemera Tools
Since building my first Hemera tool controlled by a Duet3D Tool Board, I have built a second one and made some improvements.
Large Kossel update
My large Kossel variant has been running for several years now. It is reliable and produces good prints. I have however replaced the extruder drive and the power supply by different models, and added a filament monitor. I will now … Continue reading
Converting the E3D Tool Changer to Duet 3 with Hemera Tools (Part 2)
Configuring the Duet 3 The Duet 3 configuration and other system files I use are based on the ones that I published for Duet WiFi/Ethernet running RepRapFirmware 3. They are configured so that X0 Y0 is the centre of the … Continue reading
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Converting the E3D Tool Changer to Duet 3 with Hemera Tools (Part 1)
The E3D Tool Changer is a versatile platform for multi-material 3d printing, laser cutting/engraving, and associated techniques requiring a stable XYZ motion system. Although it is also available with fewer tools or no tools, the common configuration is four 3D … Continue reading
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Dangerous failures
Sometimes, equipment that is supposed to be designed with safety in mind turns out to be unsafe. Here’s an example I came across a few years ago: a mains-powered smoke alarm installed in a top-floor flat:
Switching from Sage 50 to Xero Accounting Software
For once, here is a non-technical post from me. I’ll describe my experiences of changing from Sage 50 to Xero accounting software. In particular I’ll highlight a number of pitfalls that you might wish to be aware of prior to … Continue reading
Improving the Robotdigg SCARA printer
In the first post in this series I described how I strengthened the bad T-frame of the printer and added adjustable levelling feet. These improvements made it possible to produce prints. The conversion to Duet electronics described in my second … Continue reading
Converting the Robotdigg SCARA printer to Duet electronics
In my previous post I described the Robotdigg SCARA Arm 3D printer in its original form. This post covers the conversion to Duet Ethernet electronics. It may seem odd to use top-of-the range electronics with budget mechanics, and I am … Continue reading
Testing the Robotdigg SCARA Arm 3D printer
A colleague spotted this Robotdigg SCARA Arm 3D Printer which sells at just US$280 + shipping and import VAT. As I was working on SCARA printer support in RepRapFirmware, this seemed an ideal low-cost platform to test it on. So we … Continue reading
