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  • Writer's pictureAdrian Bragagnolo
    • Aug 20
    • 3 min read

How to Make a 3D Model for 3D Printing


Many people ask about the process of re-creating parts to 3D print at Sketch N' Design. This is typically what it looks like:




1. Measure


I use digital vernier callipers to measure most of the parts I replicate. A 3D scanner can be used for more organic shapes, but it does not allow you to easily manipulate the model. Components like these are best modelled using measuring tools like callipers, gauges and angles.



2. Create CAD Models


Create the 3D model in your preferred modelling software. I use SolidWorks by Dassault Systèmes, but this comes down to user preference. There are many CAD packages available, some free and some paid. Below are some suggestions of some FREE CAD programs that are great to use as a starting point:


My Top Free CAD Software Suggestions


It is usually a back-and-forth process between measuring the part you are trying to replicate and modelling your part. Typically, you start with primitive shapes and then further develop and add features until you achieve the desired result.



3. Slice


Prepare the part in your 3D printer software. I use Bambu Studio to prepare the model for 3D printing, but there are lots of different slicers available. Many of these also offer free resources to help guide you through the process. Below are some suggestions of great FREE slicer packages:


My Top Free Slicer Software Suggestions



4. Dry Filament


This step is not essential; I printed for a years before drying my filament first, as I would vacuum seal the filament in bags to keep it moisture-free.


PLA and many other filaments are hygroscopic, meaning they can absorb moisture if not sealed airtight, which can lean to uneven rough looking printing. I now use an eSUN filament dryer because I can run it for about 1/2 hour - 1 hour and then feed it directly into the 3D printer to print while continuing the drying process.



5. Clean Printer Bed (IMPORTANT)


This is a very important part of the printing process! The cleaner the printer bed, the better the parts will stick to the printing bed while printing. I suggest using isopropyl alcohol, as it does not leave any residue when it dries and is excellent for removing contaminants like oils from the skin and dust, which could cause the part to lose adherence during printing


Note: If you are still having trouble with parts not sticking to your printer bed properly, try removing the build plate and washing it with warm water and dishwashing liquid. This works great for removing any dirt or residue. Dry it with a lint-free cloth and try to avoid touching the top surface of the build plate with your hands. Then, use isopropyl alcohol for a final clean.


If you are based in Australia like me, head over to your local Bunnings and grab a bottle of Isopropyl Alcohol



6. Hit Print!


I’m using a Bambu Lab A1 Mini for this print. Pair this with a high-speed filament, and you can print in a fraction of the time without compromising quality. I recommend using Makerlab filament, it prints very well at high speed and maintains its vibrant colours.




7. Test Fit and Recreate – Over and over again!



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