9 Best 3D Print Filler to Buy
There will always be prints with flaws, cracks, or holes, no matter how skilled you are at 3D printing. There are occasions when you need to resort to using items designed specifically to conceal such flaws. You have, fortunately, found the complete resource for selecting the finest filler primers and putty primers available today.
1. Bondo Body Filler
The bonding needs of many industries, including 3D printing, have led to the widespread use of Bondo Body Filler, a two-part solution. Users of 3D printers appreciate it because of the rapid curing time and subsequent durability it provides.
This filler has a unique composition that keeps it from shrinking and allows it to take on forms in minutes. Its great strength and user-friendliness stem from its original application in the automotive industry. It's possible to achieve a silky smooth finish using varying sandpaper grits in a matter of minutes, much to the delight of its users.
Key attributes include a smooth application, rapid drying, minimal sanding, a silky smooth finish, and compatibility with virtually any 3D printing material. It's great for hiding flaws and getting a clean finish; therefore, it's popular among people who like 3D printing.
Price: $15.99
Link to buy: Amazon.
2. Elmer’s ProBond Wood Filler
The quick drying time of Elmer's ProBond Wood Filler makes it a practical alternative for 3D printer users. Its nearly odorless composition keeps your office smelling fresh. Users suggest using this filler to smooth out seams and layer lines in 3D printing, but caution against using too much. Avoiding premature drying out of the product requires careful storage.
This wood filler is notable for its fast drying time, odorlessness, user-friendliness, superior adhesion, and simplicity of cleanup. Many people who dabble in 3D printing use it to fill in the little details of their models before they paint them.
Price: $13
Link to buy: Amazon.
3. Rust-Oleum Automotive 2-in-1 Filler & Sandable Primer
If you're into do-it-yourself projects, especially 3D printing, you should check out the Rust-Oleum Filler & Sandable Primer. It has a two-in-one formula that primes the surface and effectively fills in cracks and gaps for long-lasting effects.
The product's comfort tip container makes it simple to apply and lessens the strain on the user's fingers. Users have noted that it clings nicely to PLA and ABS filaments without the need for sanding, which makes it easier to create a level surface and a smooth finish. Priming the surface three times usually yields a sufficiently filled surface ready for sanding and finishing. It's a great addition to your 3D printing arsenal because of how fast it dries, how well it adheres, and how simple it is to sand. It's not just for 3D printing; its adaptability makes it a popular option among hobbyists. Those who have used this primer for a long time attest to its efficacy.
Price: $7.88
Link to buy: Amazon
4. Milliput (Two-Part)
Milliput is a two-part epoxy putty that hardens when exposed to cold. Two sticks of putty, each weighing 113.4 grams, come packaged in their own carton. By combining them, you get a modeling putty with a wide range of possible uses.
The procedure of joining the two is simple, needing only the squishing together of equal quantities of each stick. The putty may be applied and dried underwater, and it dries to a firm, sandable finish in a matter of hours. Users like that it doesn't produce harmful byproducts or irritate their skin.
Milliput requires sanding since it is challenging to produce a perfectly smooth surface. Some people find it difficult to use since it creates a mess. It comes in only one size, and its price and availability elsewhere may be affected by the fact that it was made in the United Kingdom.
Price: $5-$10
Link to buy: Amazon.
4. Apoxie Sculpt (Two-Part)
Like Milliput, Apoxie Sculpt is a two-part, cold-setting epoxy modeling clay. The two containers (labeled A and B) together weigh 1 pound, but you may also buy them in bigger quantities. Warning: Apoxie Sculpt may cause skin irritation; wear gloves when handling the product and applying it to the skin. This epoxy clay is easy to shape and smooth out because it dries hard with a glossy sheen. It's durable since it can withstand water and won't shrink. There are 12 color options to choose from when using Apoxie Sculpt, which could reduce or even eliminate the requirement for painting with careful color matching.
Possible skin irritation, high price, and limited availability in major online stores are the negatives. For regular consumers, the product's longer shelf life and greater packaging sizes are a win.
Price: $195
Link to buy: Amazon.
5. Bondo Glazing and Spot Putty
For its long lifespan and user-friendliness, Bondo Glazing and Spot Putty is a popular choice among those who are interested in 3D printing. It's great for patching up cracks and seams in your 3D printing because it gives such a smooth finish. Bondo Glazing and Spot Putty are two examples of putty that are ready to use right out of the tube, adding to the product's ease. With only a 3-minute working time and 30-minute sanding time, it's fast and efficient. Users enjoy that it doesn't leave a stain, so your 3D printing won't lose their vivid hues.
One happy customer revealed they got it as a test but now use it exclusively. It dried quickly and sanded smoothly, giving them a surface that was better than they'd hoped for. Bondo Glazing and Spot Putty, on the other hand, give out pungent odors and odor until it dries. For this reason, it's best to do your task outside or in a very well-ventilated room.
It's easy to work with, doesn't need to be mixed, dries in 30 minutes, doesn't stain, dries quickly, and doesn't shrink much. Users find it to be an easy and effective option for finishing professional-looking 3D printing by eliminating layer lines and filling in gaps.
Price: $12
Link to buy: Amazon.
6. Ultraviolet resin
By eliminating layer lines and other flaws, UV resin offers a novel method for enhancing the quality of FDM prints. Using a brush or sponge, you can easily apply a thin layer of UV resin to these flaws in a precise and manageable fashion. To get a smooth finish after applying resin, you cure it with a UV beam for about 10 seconds and then sand it.
When working with UV resin, it is essential to take all necessary measures. Protect yourself from toxic gases by using a NIOSH-approved respirator, some gloves, and safety glasses or goggles. If you don't want to become sick from breathing in dust when sanding, get a particle mask. UV resin is a practical and inexpensive addition to your 3D printing arsenal and it improves the quality of your FDM prints. This method is great for fixing minor flaws in your model without having to resort to sanding to get a smooth finish.
Price: $15
Link to buy: Amazon.
7. Modular Filler by Humbrol
The Model Filler is part of Humbrol's extensive line of enamel paints and glues, and the company is well-known in the field of model creation. This product is used to smooth out surface flaws before painting, such as tiny cracks and gaps between plastic pieces.
The Model Filler from Humbrol is user-friendly, dries completely in 24 hours and permits sanding with fine-grade sandpaper. Its major market is model kit manufacturers and miniature hobbyists; hence, the 31 ml box size might be too tiny for some 3D printed creations. However, it turns out to be a great option for fixing tiny cracks and defects in models that might otherwise need sanding and painting.
Price: $7
Link to buy: Amazon.
8. Revell Plasto
Brush-on putty like Revell Plasto, which is made for plastics, is another excellent choice for fixing flaws in 3D printing. Plasto is Revell's specialized plastic filler; the company is well-known for its plastic scale model kits as well as its wide selection of paints and glues.
Although originally developed for use with model kits, Plasto has proven useful for 3D printing. The 25-milliliter tube's contents dry to a hard surface, but the company doesn't specify how long that takes. Afterward, you can sand this product to a smooth finish. Note that products like Humbrol and Revell Plasto are highly flammable and hazardous, and handled with care. They work great for fixing tiny flaws in 3D-printed models without resorting to sanding or painting.
Price: $5
Link to buy: Revell
The Best 3D Printing Software
There are many 3D printing software available that one can prepare designs for 3D printing and a good example is SelfCAD. SelfCAD is an easy to use 3D modeling software that you can use not only to create 3D models but also edit meshes and slice designs. It comes with interesting 3D modeling tools like freehand drawing and sketching that you can use to create designs from scratch. There are also easy to use selection modes as well as various modification tools to help you modify your designs based on your requirements. It also comes with image to 3D feature that makes it easier to turn photos to 3D models. You can also import STL files and modify them based on your needs. For example, you can import STL file and change color, as shown below.
The software also comes with an in-built online slicer that one can use to prepare designs for 3D printing. The video below shows how to slice STL files and generate the Gcode to send to the 3D printer.
Choosing the Right 3D Print Filler for Your Specific Projects
Whether you go with a filler or a putty primer for your 3D printing relies on your individual preferences and requirements. There are a variety of products available to help with the 3D printing process, from repairing defects to smoothing out the final output. Selecting the appropriate filler for your 3D printing projects requires thinking about the needs of your project and your own tastes.
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