3D printers depend on slicing software to transform solid 3D models into a series of instructions that the printer can follow, building the object layer by layer. This software allows for customization of various settings that influence the final output, and also enables significant modifications to the print.
Here are two effective techniques I’ve used recently to enhance my prints, which I plan to utilize in future projects.
Although I used Bambu Studio for these projects, similar techniques should also work well with OrcaSlicer and likely PrusaSlicer.
Slice and Combine Models
No CAD Software Required
Credit: Tim Brookes
Recently, I printed some keycaps for my mechanical keyboard (the Nuphy Air75 V2). I aimed to differentiate frequently used function keys by using various colors, making it easier to spot keys like Play/Pause and Mute.
I also decided to create a novelty keycap for the macro key intended for screenshots, since I often accidentally hit it. This adjustment has proven effective.
After successfully printing the initial set of keycaps, which fit perfectly, I crafted a large traffic cone for the macro key. However, the mount was not compatible with my switches despite attempts to modify it. Undeterred, I explored the possibility of slicing off the original keycap mount and attaching it to my new design without exiting the slicer.
Using Bambu Studio’s Cut tool, I removed the inappropriate keycap mount and discarded it. I then dragged my preferred keycap file into Bambu Studio, selecting “Import geometry only” when prompted. After that, I used the Cut tool again to separate the mount from the good keycap, discarding the rest.
This process left me with two components: the traffic cone keycap and a separate mount. To ensure proper alignment, I right-clicked on both and selected “Center.” I moved the mount down beneath the build plate until the top of the mount and base of the traffic cone were touching. Then, I selected both pieces and utilized the Mesh Boolean tool to create a “Union” between them by clicking “Execute.” This merged the two parts seamlessly.
A more efficient approach would have been to use the Assemble tool in “Face and face assembly” mode, selecting the two faces to join and then clicking “Center coincidence.” From there, the Mesh Boolean’s “Union” tool could be employed to combine them.
Subtract Geometry to Make Your Mark
Use SVGs for Cutting Into Objects
Credit: Tim Brookes
Recently, I focused on a photography project where I printed bokeh shape filters and an adapter. These allow for creative manipulation of out-of-focus background highlights by controlling light entry into the lens, and they work beautifully with fairy lights. My project included filters shaped like hearts, stars, and paw prints.
In addition, I created a solid filter with no cutouts. To make my own unique design, I imported the How-To Geek logo (an SVG vector file) into Bambu Studio.
After isolating the “HTG” portion of the logo, I positioned it to intersect with the solid filter and selected both components to execute a Mesh Boolean operation, choosing “Subtract” to carve the logo into the filter.
Credit: Tim Brookes
The result was a filter with a logo cut out, and upon printing, it delivered impressive results.
No Need for CAD Software for Every Task
With the Mesh Boolean tool, you can combine different objects as long as you can import the geometry into your slicer. This tool is also effective for subtracting shapes, allowing for the creation of both large holes and intricate designs. These capabilities let you modify models without needing CAD files, the requisite software, or specialized knowledge.
Exploring the features of your slicer can lead to even more innovative designs. Start by mastering the basics of Bambu Studio, then explore advanced capabilities like fuzzy skin to conceal layer lines and improve prints.
