It appears that Delta Micro's UP! and UP! Mini are aiming to be a serious threat to Reprap and other personal 3D printer offerings in very short order.
Some months ago, a long term technology friend of mine acquired an UP! While Peggy has been a inspired developer of educational technology for years, she did not, to the best of my knowledge, have any prior knowledge of the ins and outs of 3D printing on personal printers. In spite of that, Peggy whipped her UP! printer out of the box and did a brilliant print first time out. That really caught my attention. I'd been working on the Reprap project for years and still, when I bought a Rapman, a greatly enhanced Darwin-derivative, several years ago it had taken me the better part of a month to get used to the quirks of printing on it to the point that I could get reliably good prints.
The UP! 3D printer by Delta Micro
At the time I had abandoned my effort to build a second generation Darwin-derivative printer as simply taking too much time and getting in the way of other design work I wanted to do. My Rapman, however, was getting a little long in the tooth and, should parts break I would not have the means to print replacements. Clearly, I needed another printer.
I had been idly interested in the UP! for some time. Delta Micro, which makes the UP! is the Chinese equivalent of Stratasys here in the US. Some years ago, I suggested to Stratasys that they leverage the highly sophisticated solids model processing app that they supply with their high-end printers to promote a inexpensive, personal 3D printer in the Reprap price range. To Stratasys' credit, they eventually did introduce such a printer that they marketed though
Hewlett Packard. Unfortunately, their price point, which was around $14K, was well beyond the means of most pocketbooks for personal use. Delta Micro, on the other hand, did leverage their high-end solids model processing app to promote their own personal printer, the UP!. The UP! was priced at about $1.5K, roughly the same as my Rapman costs currently.
After much agonizing about abandoning the Sampo printer I'd spent considerable money in developing, I went ahead and purchased an UP!. My notion was to get a close look at it to see how much of what Delta Micro said about it was true and how much was hype.
Out of the box, one thing that immediately struck me was the tiny size of the UP! The 140x140x135mm print volume reminded me a lot of the old Makerbot Cupcake. It took me about half an hour to get out of the box and set up, ready for operation. While the manuals indicated that I might have to level the print surface, this was not necessary. Calibrating the printhead height took about ten minutes. When I ordered the UP, I was very worried about print adhesion to the print surface. Delta Micro offered three solutions; perforated printed circuit board, painted glass and Kaplon tape covered glass. I had had so much drama with prints peeling off of the print table with the Rapman over the years that I ordered all three options.
As it turned out, I need not have bothered. The simplest option, perforated printed circuit board, clipped onto the print table with standard office clips, has proved perfectly adequate.
I had been assured by the American distributor that the UP! had a heated print table. It certainly didn't look that way out of the box. The black iron print table is heated by a central heating element in the middle of the table. This arrangement struck me as dubious. The control app that goes with the UP lists the table as heating to 105 degrees C. I was worried about the temperature gradient of the print table and did a bit of thermal imaging.