How Big Can You Print With a RoVa3D Printer?
The published build area of a RoVa3D Printer is 11.18” x 11.88” x 7.55”.
This means that the printable area of the print bed is 11.18 inches (28.397cm) wide, or in the X dimension, 11.88 inches (30.17cm) deep, or in the Y dimension, and 7.55 inches (19.177cm) tall, or in the Z dimension.
But can you print an object that is 11.18” by 11.88” by 7.55”? The short answer is: Yes. For the long answer, read on.
In this update, we’re going to walk you through how these numbers are calculated, and what dimensions you can rely on for calculating the printable area of your printer.
The calculation of build area depends on three factors:
- 1) How many nozzles are installed in the printer?
- 2) How many of the installed nozzles will be used during the print?
- 3) How many different materials will be used throughout the print?
Let’s look at each of these factors.
1) How many nozzles are installed in the printer?
Different numbers of nozzles affect the print area in a few ways. A single nozzle RoVa3D can move farther in the X dimension because there aren't additional hot ends taking up valuable space on the X carriage. Adding nozzles reduces the X carriage movement, but expands the area that can be reached, since we now have more nozzles. The table below shows the maximum printable area for 7 different nozzle configurations.
From the table above, you can see that not all nozzle configurations give you the maximum build area. You can also see that in certain configurations with fewer than 5 nozzles, you can actually get a taller object printed than the published values due to an increase in the Z dimension. The published values are for the most common configuration, which is 5 nozzles.
2) How many of the installed nozzles will be used during the print?
To achieve the build volumes described in (1) above, it is necessary to use all of the available nozzles. That is, you must do a multi-nozzle print, with the same material loaded into multiple nozzles. Different nozzles are used to reach the far corners of the print bed, but the final print will appear as if it was printed with a single nozzle, because it was all printed with the same material.
Detailed instructions on how to modify your models to accommodate multiple nozzles will be posted in the Solutions area of our Support site. The short version is that you use NetFabb Basic or a similar tool to slice your model into pieces, and export each piece as a standalone .stl file. Then you combine the standalone files into a single .amf file in Slic3r, and assign different nozzles to the different parts.
If you only use a single nozzle in a print, you are limited to the reach of that one nozzle. Here are the maximum build areas for a single nozzle in each of the 7 different nozzle configurations.
3) How many different materials will be used throughout the print?
If you are doing a multi-material print, then you can’t use the technique described in item (2) to expand your printable area. In (2), you can print to the area if at least one of your nozzles can reach it. In a multi-material print, you need ALL of your nozzles to reach a given area, which necessarily reduces the available print area. The chart below shows the maximum printable area for the same 7 different nozzle configurations, except that this time we assume that you have 5 nozzles installed on your RoVa3D printer, but you are only using the ones indicated.
We hope we haven’t confused you too badly with all of these charts and numbers. If after reviewing the above, you are still unsure if you can print a given object on our printer, feel free to contact us through Kickstarter, or even better, through our ticketing system in our Support Portal. Attach a copy of your model in STL or AMF file format, and we’ll take a look and let you know if you can print your object on a RoVa3D Printer.