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 bought one.
In this blog entry, I describe my experiences with this printer as it arrived and what I needed to do before I could try printing with it. A subsequent entry will describe the conversion to Duet Ethernet electronics. Continue reading
It’s more than a year and a half since I published my large Kossel build blog entry. Since then I have upgraded it many times. Several people have built 3D printers based on this design, and some have asked for a more complete bill of materials. So I decided to create a page on this printer as it is now, including yet more upgrades. Continue reading
Some of you may already know that I have been working on a new version of the Duet 3D printer electronics. The new board is called the Duet WiFi, and it a joint venture between my own company Escher3D and Think3DPrint3D. The first pre-production board arrived a few days ago. After bench testing it, the time came to install it in a 3D printer. I chose to install it in my delta printer, which is more demanding of the electronics than my Ormerod. Continue reading
This time I will discuss the various print surfaces I have used and my experiences with them. Your results may differ. Continue reading
My large delta printer has been working quite well since the last round of upgrades, but two issues have been bugging me. First, although spiral vase prints were excellent with perfect layer registration, some other prints showed a small misalignment between some of the layers. Second, when I measured the trigger height of the IR sensor at each probe point, I found that the trigger height close to the Z tower was about 0.25mm higher than in most other places. I corrected for this using the H parameter for the probe points affected on the corresponding G30 commands in the bed.g file, so it didn’t affect the delta calibration. But it shouldn’t have been necessary. Continue reading
In this post I describe three further upgrades: 24V power, moving the electronics under the bed, and the Robotdigg aluminium effector. Continue reading
In my previous entry I described my large Kossel-derivative delta printer. Since building it, I have upgraded it in a number of ways, which I will now describe. Continue reading
In this entry I describe how I built a largish delta printer based on the Kossel design. It started up as an upgrade to the Mini Kossel that I describe in earlier posts, but now there is very little of the Mini Kossel left in it. Continue reading
In earlier posts in this series, I described how to install and connect Duet electronics on a Mini Kossel, how to install and configure the firmware, and how to calibrate the printer. In this post I cover using a Z probe. Continue reading
In the third part of this mini-series, I will cover final commissioning of the Mini Kossel with Duet electronics. Continue reading
