Multi-color 3D printing lets you combine multiple filaments into a single object in order to create ready-made items that don’t require painting.Unless you’ve invested in a printer that features a tool-changer nozzle, this can be a wasteful and time-consuming process.Add How-To Geek on Google Add as Preferred Source Follow on Google Discover Here are some tips to min-max waste and printer efficiency.
The problem with multi-color 3D printing For most printers, anyway Most modern 3D printers support multi-color printing in some form.The most common method is using a material-changing system like Bambu Lab’s AMS or Prusa’s MMU.You can load multiple filaments onto a single printer and have the printer switch between them at will, depositing different colored filament wherever it is required.
Unfortunately, this is a wasteful process.Every time you switch filament, you’ll need to purge what’s left of the old filament from the nozzle.In order to avoid color bleeding, your 3D printer favors larger purges than smaller ones.
These purging processes waste a small amount of filament each time the color changes.The more color changes you make, the more waste you generate.Keep in mind that your printer builds objects layer-by-layer.
This means that one whole layer needs to be completed before the printer will move on to the next.If you have three colors in a layer, that’s three filament changes that need to be made.The process will repeat for the next layer, if those three colors are used there too.
As you might imagine, the process of switching filament, purging the line, and loading a new color also adds considerable time to a print.Both of these issues take the shine off multi-color printing for a lot of people.Some prefer to print in a single color and then finish by hand with paint; others decide that an upgrade to a tool-changer system that generates minimal waste is the way forward.
Print a lot of multi-color items at once Make the most of the waste you generate Let’s say you’re all-in on printing a multicolor item.You’re happy that the waste generated is just the cost of getting what you want.The first thing to understand is that the amount of waste isn’t tied to the quantity you are printing, but rather the number of color changes you make.
For example, let’s say you’re printing an item that requires two color changes per layer for a total of 10 layers.That’s up to 20 color changes in total for the entire print.Now imagine you fill your build plate with that same item, to the point where you have enough room to make 15 of them.
That exact same print will have the same two color changes per layer for 10 layers.The amount of waste generated by both print jobs—a single item, or 15 of the same item—will be exactly the same.Your overall filament consumption will naturally be higher if you print more, but the amount of waste per item will be slashed drastically.
This isn’t always the right call; you might not need 15 of the same object after all, but it’s absolutely worthy of your consideration, especially if you think you’ll come back and print more in the future.A good example here is customized luggage tags or other signs that use the same colors in their design but potentially have different lettering.Add accents with layer-based painting Minimize layer changes to reduce waste Close Maybe you just like the idea of adding a splash of color to a boring print that you’re making, like a set of Gridfinity bins for organizing your drawers.
You’re ok with a small amount of waste, but you’d rather keep it to a minimum.The simple answer here is to add a few considered layer-based color changes using your slicer’s painting tools.In Bambu Studio or OrcaSlicer, you can select an object on your build plate and then click on the Color Painting icon in the toolbar.
From here, click on the Height Range option and choose a color.You’ll now be able to print, layer-by-layer as you see it, directly onto your model.This is perfect for adding accents to the top of a print, or designing a color-break in the middle of an item.
Every time you break up your color range, you’ll force a color change and need to purge the line.But if you decide to produce a bathroom organizer that’s half black and half gold, you’ll only need to change color once in the entire print.Sometimes you’re going to want to throw caution to the wind and print that beautiful multi-color item to see what your printer is capable of.
Other times, you might want to think twice before producing a bunch of waste that’s equal to or greater than the weight of the item you’re making.Don’t forget you can always save money on filament by buying in bulk.
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