FUBAR GLUE

15 ml Bottle

This listing is for (1) - 15ml bottle of Fubar Glue plus get (1) Free 50ft sample of our NYLON 12 FILAMENT per total order!! A $10.50 value....

One of the biggest challenges to 3d printing

3d printing is a great new technology for everyone to use. From the experts to the beginners, it offers a new choice for people to create and re-create both new and old everyday items. But as we all know, along with new technology also comes the challenge to get results the way we want them.

One of the greatest challenges the 3d printing community is trying to solve is keeping 3d prints on the printer build bed. When plastics, in our case the filaments, are heated to deposit a layer of material on the bed and subsequently on top of each other, (thus called additive manufacturing), a condition is created as the temperature of the plastic decreases. This is known as shrinkage or warping.

Plastics will shrink at different rates depending on the state they’re in during the cooling process. When they are in a more solid state, they will shrink at one rate. When they are softer or in a more fluid or molten state, they will shrink at a different rate. The example below shows two layers of filament. The bottom of the bottom layer on the printer bed is the coolest. The top of the top layer is the hottest.


            BEFORE COOLING                                  AFTER COOLING

In the above example, section (1) is printed on the build bed first. It starts to cool first as it gives up its heat to the bed faster than section (2). Section (2) cools slower as it tries to give up its heat to the air. As the 2nd layer is put on, section (3) gives up its heat to section (2) thereby cooling faster than section (3). Because of this phenomenon, the print at section (1) lifts up from the bed. Even if one side is cooling faster and shrinking faster, the other side is still pliable enough to shrink along. Once one side cools past a certain temperature two things happen. First, the material stiffens and can’t shrink with the other side. The stiff side is no longer shrinking and the other side continues to shrink. Therefore, as the pliable side continues to shrink it is pulls on the print and causes a bow in the direction of the side that cooled last.

Controlling this rate is nearly impossible. Some people turn on fans to help cool the layers. This is not a good solution since the rate at which the plastic cools will not be consistent from the top of one layer to the next and will cause very poor adhesion between the layers. Another method is to slow down the speed of the printer. This of course is not really a good solution since print times escalate to unacceptable levels.

Solution

 Since 3d printing began, hobbyists and expert printers have tried to come up with a solution to warping and lifting. With the creation of new filaments constantly hitting the market, the challenge to secure the 3d print to the build bed gets harder and more demanding because of the materials, speeds, complexity and 3d printers available to the public.

      1. 
First and foremost, learn about your machine and its capabilities. Don’t skimp on the details. If you don’t know what your machine can or can’t do, how do you know what to adjust or if the machine is even capable of doing what you want.


2. You need to learn about your materials. All filaments are not created equal. Abs and Nylon, although both polymers, have completely different characteristics and running conditions. They also shrink at different rates. (See table below)

3. Understand the best way to design a part to minimize warping. Learn about in-fill, layer patterning and creating a raft on the build bed to layer your print on. A raft can be described as a latticework of filament, printed on the build bed as a structure underneath your print. It is larger than your 3d print will be to help spread the load of the print making it stronger as well as “absorb” some of the forces of shrinkage. By creating this structure on top of a prepared surface you will minimize or eliminate the consequences of warping.

4. Test your own solutions under many conditions. Speed, printer nozzle tip size, heat settings, filament materials, layer height as well as others all play pivotal roles in the final quality of your print.

5. Level your build bed. If you don’t complete this task before all others you are wasting your time. A level bed will ensure that your first layer gets extruded onto the build bed as perfectly as possible. This will contribute significantly to the adhesion of the first layer to the bed as well as the bed prep material you ultimately use. This is where “adhesion materials and glues” come in to play.  

Common Plastic Shrinkage Rates

Description

Shrinkage in/in

ABS High Impact

0.005 - 0.007

ABS Heat Resistant

0.004 - 0.005

ABS Medium Impact

0.005

Nylon 6/6

0.010 - 0.025

Nylon 6/6

0.007 - 0.015

Nylon 6/10

0.010 - 0.025

Nylon 11

0.010 - 0.025

Nylon 12

0.008 - 0.020

Nylon Glass Filled

0.005 - 0.010

PET

0.003 - 0.005

Polyethylene Low Density (LDPE)

0.015 - 0.035

Polyethylene High Density (HDPE)

0.015 - 0.030

PPO/Styrene CO (NORYL)

0.005 - 0.007

Polypropylene

0.010 - 0.030

PPO/Styrene G.P.

0.002 - 0.008

PPO/Styrene Heat Resistant

0.002 - 0.008

PPO/Styrene Impact Mod

0.003 - 0.006

 

 

Bed Preparation

 The list of materials for the bed to be made of is quite long. Typically, a 3d printer has either a glass or aluminum build plate, (particularly when using a heated bed). Others use plastic sheets, MDF, poplar wood, lexan, Garolite, hdpe and the list goes on and on. Users find that a certain material may do “well” but doesn’t last, is cost prohibitive or even when using the same material because of the complexity of the print won’t work. Very frustrating to say the least.

Next comes the bed preparation method. Basically what can someone put on the build bed that’s cheap and easy and will create a good surface for the filament to adhere to all the time. Painters tape, Kapton tape, glue sticks, mixing bits of the filament in acetone to make up a “glue solution” and lots of other adhesives have been tried and used for years.

Now comes the glues specifically formulated for using on build beds to improve adhesion and stop the lifting and warping as the 3d print cools.

Our FUBAR GLUE has been formulated just for this purpose. It was developed and tested to run using NYLON 12 Filament. We found it to work great though on most filaments available today!

USING FUBAR GLUE

Printer beds come in many sizes, shapes and materials. One of the most common sizes is a bed measuring approximately 8″x8″ and it is a heated bed. When printing with Nylon 12 and many other filaments you need a heated bed. For the Nylon 12...settings are: Bed temp is 100°C on first layer... Increase to 110°C for the rest of the layers. We run the extruder at 260c on an I3 Prusa... (The general range is 235 to 265°C).

The most important things to do for the glue to work the best...

Clean the bed thoroughly... Let it dry completely. Use a paper towel with alcohol and wipe the bed down well. (We use a mirror to print on from a craft store) and this will remove all oils. Let the bed dry. I put 15 - 20 small drops of glue at one side of the glass bed. Then I use the scraper blade or a squeegee to spread evenly in one direction (usually taking just two strokes of the squeegee to get a thin complete layer across the bed). More glue is not better. (You want a thin even coat). Let air dry... do not put it back on the heated bed to dry. Doing so drives out moisture from the glue and will not work well. It will be almost 100% clear when completely dry...(takes about 3-4 minutes). If you use too much it will take a long time to dry and not be as clear as it should be. It now ready to use...That’s it!(Note: Depending on the material you are using, for example PLA, many printers don’t even have a heated bed but still need an “adhesive” to stop the prints from moving, lifting or warping. So don’t forget to use some even when not using Nylon 12 filament!)

Nozzle temperature for running Nylon 12 should be 240-265°C depending on speed and equipment capabilities and other printer settings. We also print a 0.25mm layer. When your print is complete, turn off the heated bed temperature and this will make it much easier to remove. We have tested/printed on one coating of glue upwards of 15 times and not had to remove and replace it. Sometimes we would add several drops of warm water to the existing coating on the bed, then, lightly wipe the material around the platform bed to recoat the surface. The parts weren’t complex but worked just fine. For more complex pieces 10+ prints on the same coating were not uncommon. The glue dissolves readily in a little warm water. It will loosen the part and you will be able to remove it quite easily from the bed if you need too. Your overall experience may certainly differ due to experience level, machine, filament used, temperature settings, and even room and material conditions. Our experiences may differ completely from yours.

Payment Method:

Paypal only.

Shipping and handling

This item currently only ships to the United States. (Sorry no APO/DPO/FPO at this time).

Item location: Raleigh, NC United States

       To                        Service                       Delivery*

Free shipping           United States               Flat Rate Priority Mail 3-Day™ Shipping (USPS) or First Class Parcel

Estimated 3-5 days

* Estimated delivery dates - The timeliness of service to or from destinations outside the contiguous US may be affected by the limited availability of transportation. Delivery times may vary, especially during peak periods.

Handling Time:

Will usually ship within 2 business days of receiving cleared payment

Return Policy:

To qualify for a hassle-free return, you must have paid with PayPal, have had the item shipped to a US address and contacted the seller within 30 days of receipt. The item must be returned in the same condition it was received; unused, unopened and undamaged. No exceptions. Buyer is responsible for all shipping return costs.  A 20% restocking fee may be applied if required. Funds will be returned once the merchandise has been received, inspected and verified by the seller to be in original condition, usually within 3 – 5 business days.

Product Pricing:*** NC Residents add 7.25% sales tax!

This listing is for the purchase of (1) - 15ml Bottle of FUBAR GLUE Only! Other sizes available under separate EBay listings!

***Prices are subject to change without notice!

By purchasing this material and buying from this site, buyer is agreeing to conditions stated herein and accepting full responsibility for the use of this material for their specific needs. Because of machine conditions, experience level of the user, running parameters, environmental conditions results are not guaranteed or implied.


RDM2 LLC

USA