Taulman 618 Nylon Co Polymer

Aussie 3D Printers

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Check to insure that your printer is capable of printing at 242C to 248C as this is a requirement for most nylons.

Notes

1. 618 will not print/stick to glass or aluminum print tables. The best table material for a new user is garolite (LE) available at McMaster Carr.

2. 618's bonding is best at a true 245C.

3. You may have heard nylon emits fumes. 618 does not emit any fumes for printing. Actually, there is no odor at all from 618. You may see what looks like puffs of smoke, but it is actually water vapor or steam.

If you are interested in seeing a full report on extruding Nylon based materials, please check this link as it's an extensive report used by all of industry.

NOTE

Please make sure to dry the nylons if they've been left in any humidity at all (Including shipping). All nylons will re-absorb humidity from the surrounding air within just 18 hr. So , please make sure to store nylons, when not in use!

We have received confirmation emails from individual "users" that the following printers have had no issue printing 618 with only adding garolite, tape or wood to the print table:
Please note that the use of taulman products in any of the listed printers may not be covered under your warranty.

Makerbot Replicator I
Makerbot Replicator II
Makerbot Replicator I Dual Ext
Makerbot Replicator II Dual Ext
PrintrBot
PrintrBot Plus
Ultimaker

TOM
Cupcake
CB Printer
MakeMendel
Rostock SeeMeCNC
2BEIGH3
BukoBot
3D Touch Dual Head
HELIX
Mendel
Lulzbot
inDimension3
Mendel Max
Makergear
RepRap
RepRap Pro
Rostock

Cerberus
UP
Bits from Bites
Afinia
Robot Factory

PowerWasp
RoboBot
Solidoodle 3

CNC Usage - Drill - Tap - Cutting

618 is currently being used by CNC shops around the world to support quick turn prototypes for Pre-Pilot and Pilot runs as well as some limited production runs. As global supply compresses and just-in-time becomes just-a-little-late, more and more CNC shops are jumping in to fill quick turn needs.

618 is machinable with similar settings and cutting speeds as used in Cast Nylon blocks.

Thermal properties are slightly higher than Nylon 6,6 and Nylon 6,12.

Cutting tools need to be sharp.

Three flute flat end mills are preferred.

Holes to be drilled should be printed the next metric or imperial size down and no less than two perimeters when printing. A calculation should be made such that drilled holes do not encroach on fills and be contained within perimeters only.

618 does not leave any nylon dust residue during tap operations. However, 618 does cut and even with it's slippery properties, some "cuttings" can be retained in the tap'd hole, therefore, these should be cleaned using compressed air.

For tap'd holes that are used for threaded rod, where the rod will be constantly rotated, do NOT use any lubricants as they are not needed and over time will be soaked up into the fill area.

Locking chemicals for blind nuts do NOT work on 618, and as some contain acids, they will weaken bonding.

Tap quality and material thickness follow the same rule as for aluminum.

Threaded Brass Inserts work well when installed with a soldering iron set to 250C.

Do NOT use water based solvents as 618 will take on some of the solvent and become discolored. - Permanently!

Nothing bonds to 618. To adhere other parts to 618, they must also be made of 618 and bonded with a heat gun or soldering iron.

Pliability of 618 follows the same size and density rules that apply to injection molded nylon for 100% fill parts.

For more pliability, you can reduce fill to something less than 100% For less pliability in a smaller part, you can decrease the line dia. in the slicing SW. This will cause the printer to extrude more material than usual, thus filling all gaps, resulting in a less pliable part.

Settings

Current feedback from actual usage

1. Perimeters = Minimum of 2 - Maximum depends on the number/size of holes.

2. Layer thickness/height = .2mm maximum for best resolution

3. Temperature = From "Maximum layer bonding Page" determination.

4. Speed = Printer dependent, however speeds greater than 44mm/s begin to reduce bonding on some nozzles.

5. Perimeter Speed = This should be the slowest of all your print speed settings. - Some reports @ 28-42mm/s

6. Nozzles

0.23mm - 0.5mm - Brass with flat tip

0.5mm - 1.0mm - Brass, Copper, Copper Alloy with domed tip (Domed tip required for water tight molds)

7. Retraction - 5-6mm with 1.75mm 618 and 4-5mm with 3mm 618

NOTE

Other than making sure the idler pressure on extruders was tight, Retraction seems to be the only other setting required when changing from ABS to 618

8. Skirt - Minimum of 4 @ 1 layer height. - Due to 618's viscosity, it will take 618 longer to equalize 1st layer pressure in the nozzle than ABS

9. Bonding surface

Precision Bond = Machinable Garolite (LE) McMaster Carr PN 8474K141, 8474K151, 8474K161, 8474K171

Warning

Keep surface area to the Garolite at a minimum or you will break your part trying to remove it.

Secure Bond = Cast Nylon block/sheet

Secure Bond = 618 printed block/sheet

Nylon Raft - using a 50% fill cross section with exposed fill crosshatch 3/8" sheet of Poplar Wood - unfinished - 618 like other nylons bonds well to cellulose fibers.

Printed Circuit Board - Hobby Style with no copper, just holes spaced at 0.100 centers Various Masking/Painting tapes as 618 will stick to the wax backing of these tapes.

 

 

Casting Molds

Using 618 to make Casting molds from 2 part epoxies, MEK activated resins and UV activated resins:

The current "slicing" software used to slice the .stl file and prepare it as Gcode for 3D Printers uses a circular thread model for "End-to-Side" positioning. While this works well with the majority of printed parts, it creates a physical part that is not capable of holding liquids. While tiny openings may not be an issue for some thicker casting polymers, they will definitely be a problem for silicon based molding compounds. Casting experts know that silicon will always find a hole to leak from if one exists.

The current work-around is to use 618's viscosity to the advantage of the mold designer. The viscosity of 618 allows the designer to push more 618 through the nozzle than normal. Even to the point of creating ridges and overlaps. While these overlaps would not be acceptable to the majority or parts, it helps to eliminate gaps in the printing of molds. In addition, because the molder will be pushing more 618 through the nozzle, a different nozzle type is usually required. One with a domed tip, rather than a flat tip. The domed tip will both press the 618 into crevices as well as allow material to flow out and over the adjacent thread. The result is a printed mold that is chemical/water tight and ready for a pour.

Settings

1. Perimeters = Minimum of 2 - Maximum depends on the size of the mold.

2. Layer thickness/height = .2mm

3. Temperature = From "Maximum layer bonding Page" determination.

4. Speed = Printer dependent, tests show 28mm/s to 34mm/s perform well

5. Perimeter Speed = This should be the slowest of all your print speed settings. - Some reports @ 28mm/s

6. Nozzles

0.5mm - 1.0mm - Brass, Copper, Copper Alloy with domed tip (Domed tip required for water tight molds)

7. Retraction - 5-6mm with 1.75mm 618 and 4-5mm with 3mm 618

8. Skirt - Minimum of 4 @ 1 layer height. - Due to 618's viscosity, it will take 618 longer to equalize 1st layer pressure in the nozzle than ABS

9. Bonding surface: Precision Bond = Machinable Garolite (LE) McMaster Carr PN 8474K141, 8474K151, 8474K161, 8474K171 Warning: Keep surface area to the Garolite at a minimum or you will break your part trying to remove it.

Secure Bond = Cast Nylon block/sheet

Secure Bond = 618 printed block/sheet

Nylon Raft - using a 50% fill cross section with exposed fill crosshatch 3/8" sheet of Poplar Wood - unfinished - 618 like other nylons bonds well to cellulose fibers.

Printed Circuit Board - Hobby Style with no copper, just holes spaced at 0.100 centers Various Masking/Painting tapes as 618 will stick to the wax backing of these tapes.

 

 

Industrial - Electro Chemical - Polymer Batteries

The main usage in batteries is within the cell separator. A thin layer of insulating material between electrodes and electrode chemicals. 618 can be used to support these layers, however caution must be observed with respect to acidic electrolytes. As cell life is directly dependent on the insulation properties of the separator, it is extremely important that 3D Printed separator sheets be free from thread separations and gaps. The best approach is to use a similar printing method used above for mold prints, where a domed shaped nozzle along with a slight amount of additional material is printed in a 2 layer crosshatch. This results in a thin sheet that is both flexible and sealed. While the image below shows gaps, it is for illustration purposes and in reality, there would be no gaps in the Z axis.

 

 

General FAQ

What are the major differences to me if I print in 618 ?

There is almost no De-lamination. The bonding of thread-to-thread at the correct temperature is very impressive. Of course, even injection molded parts are subject to splitting at right angle transitions, but compared to ABS and PLA we know you will be impressed. 618 gives off almost no odor as compared to ABS. Most residual odors come from the humidity (water) that boils or steams off during printing.

What makes 618 different from standard nylon?

Standard nylons have been tried in the past and failed due to very high temperatures and the lack of compression in RepRap type printers. The greatest amount of the strength and bonding of the nylons comes from the compression used in injection molding processes with dies. Of course RepRap type printers print with no compression at all, thus reducing bonding significantly.
618 uses a modification to the standard material chain resulting in a new co-polymer to dramatically enhance bonding. To accomplish this improved bonding and thermal uniformity during the 3D Printing process, both the new co-polymer and manufacturing method are unique to 618. The resistance to chemical degradation was also a top priority for 618 as the ability to 3D Print molds as well as operate in harsh environments was at the top of the list of material performance requirements. This is why you will not see 618 made available in a pre-colored spool. The dyes used to color line, are inexpensive, but reduce bonding as a function of pigment content. The final requirement for 618 was surface finish. As a material that can be used to print parts that in turn would be supplied directly to the end user/customer, 618 was to be instantly recognizable as a superior polymer. See below to see all of the nylon and nylon polymer combinations rejected by taulman. Everyone of these rejects exhibits bonding issues noted by testers around the world.

Some of the testing involved to introduce Nylon 3D Printing Material.

Printers = We now have the following 3D Printers in our labs:

1. 10" x 10" x 48" internal 6 axis design for testing delamination.

2. 18" x 18" x 24" Internal 6 axis design set up as an industrial unit.

3. FlashForge Pro for verification.

4. Orion Delta for verification.

5. Taz5 for verification.

6. MassPortal Delta for verification

7. Dremel for verification

8. Prusa for verification

Units #1 and #2 are six axis units controlled via MACH3, using large drivers and a few NEMA 23 steppers. These units are both bowden style, but can handle 1.00mm to 8mm line/rod. We have on-hand most hot-ends, Ubis, E3D, SeemeCNC, JHead, etc. for verification.

If you're not printing nylon with taulman3D's nylon, you're printing nylon with one of our rejects!

 

 

Can I still print in High Resolution?

Absolutely.

I want to print parts in 618, what is the best printer to buy?

taulman is hardware neutral. This includes complete assemblies/Printers and sub-assemblies/Hot-Ends, extruders, etc.. As a "filament", 618 is designed to be used by all RepRap style/type 3D Printers. There are several great Forums and IRC Channels dedicated to helping new users.

What setting will I need to change in my skinning software?

Most testers found they only needed to make sure their idler tension was tight so the material didn't slip. Otherwise, it's install and print! Users with direct drive 1.75mm extruders found that a small increase in retraction distance helped to eliminate trailing threads.

Can I still use bridging?

Yes, in fact several testers report excellent results with bridging.

Can I print parts that have a smooth color luster?

Definitely! 618 delivers a beautiful printed finish.

How do I get prints to stick to my platform?

Precision Bond = Machinable Garolite (LE) McMaster Carr PN 8474K141, 8474K151, 8474K161, 8474K171 Keep surface area to the Garolite at a minimum or you can break your part trying to remove it.

Are there fumes and odors?

The taulman polyamide materials give off almost no odor as compared to ABS. Most residual odors come from the humidity (water) that boils or steams off during printing and 618 had no measurable HCN. When printing with ABS, Nylon, PLA or any material, we are changing the state of elements with temperature, so make sure you vent all fumes and odors.

Is 618 FDA Approved?

No, as FDA approval is a very expensive undertaking. 618 is inert to the body and contains zero organics. 618 is also "indigestible" and will pass through the system.

What is the most "visible" printing difference I'll notice when printing with 618?

Shine or sheen from the translucent surface. This looks much different than PLA surfaces.

Will 618 foul my nozzle if I leave the heater on?

No! ...We've left our heaters on for over 8 hours after a print with no issues at all. We also commonly move back and forth from ABS to 618 with no issues at all. We just purge about 50mm's and start printing.

Is there any chemical that I should "not" use with 618?

Yes, any strong acids can be a problem. They will break down the bonding of threads and weaken the printed part.

What will be the biggest differences in my part from being printed in ABS and then 618?

1. Strength. You will be amazed at the strength properties of 618. Some testers have reported 80%-100% fill is as strong as injection molded parts. 2. Weight....618 is lighter than ABS and PLA. 3. Pliability - A major advantage with 618 is the pliability that some of us have desired for a long time. From stretch in bands, to elasticity in support components. Pliability means that multi-part assemblies are more likely to work as designed with minimal filing, cutting and sanding. Springs can be completely compressed and return to a printed state. 4. Slippery Surface - 618 can eliminate collars, U-joints, washers, separate raceways and ball joints by using the materials slippery properties. Ball bearings that require no lubrication are easily printed. And most important, threaded holes that won't delaminate under pressure.

Will retraction work?

Yes! At most, you may have to increase your retraction distance an additional 2mm - 3mm.

Your Color Page mentions RIT Dyes, are there other dyes I can use?

You can use any dye that is "acid based". Most textile dyes and some paper dyes are acid based. These are very light acids on the same pH level as vinegar.

Can I glue my 618 parts together?

taulman3D now offers a new Nylon Glue called "ComPlete" ComPlete is specifically developed to glue Nylon parts.

Can I just use plain Nylon trimmer line?

Trimmer line does "look" like and contain nylon, however, trimmer line or weed-whacker line also contains various additives that are destructive and or dangerous for your 3D Printer. First, it has fiberglass to strengthen it, as without fiberglass, the ends will fray/split and cause trimmer jams. Next, nylon on it's own is too flexible in a thin line, so fiberglass hardens it for cutting. Fiberglass will foul your nozzle because it requires a higher temp to melt along with the nylon. The higher temp will actually boil the nylon and other additives giving off a smell. The additives are there to reduce the bulk % of nylon as nylon is more expensive than the additives. These additives are usually calcium based and can clog or foul your nozzle

What is Thread Compression?

Due to 618's viscosity, you can push more material through the nozzle, than required for your part. The result is an even stronger part with less pliability.

DISCLAIMER. OUR PRODUCTS AND MATERIALS MAY BE USED BY EXPERIENCED, SKILLED USERS, AT THEIR OWN RISK. TO THE FULLEST EXTENT PERMISSIBLE BY THE APPLICABLE LAW, WE HEREBY

NOTE

Both Nylon and t-glase will NOT seize in your hotend even if left in place with heater "ON" for 72hr's. Both will oxidize and extrude soot upon reactivation. 150mm of purge is all that is required to begin printing anew.

Notes

1. Manufacturer ID is self assigned and used for Production and shipping references 2. Based on an average of reported values. Nominally 5C lower with SeeMECNC and E3D HE's due to their structures 3. Note on t-glase…If the platform cools faster than the part, then a glass platform may suffer cracks. Tg on Nylon can be missleading due to nylon's structure 4. Pyrolysis is basically "Boiling"….Check your thermistor! 5. Print Bed temperature for nylons is a function of reducing the "shock" from layer to layer. Shock is defined as the time between layers such that the temp diff is at it's greatest. 6. Small parts in t-glase need a fan on the part being printed due to it's Tg 7. Moisture plays a strong part in shrinkage. Less moisture = less shrinkage. 8. To adhere nylon to nylon, use a soldering iron. 9. Testing performed by St Louis Testing Laboratories Unit = 5500R Instron with Bluehill Software…. ASTM D412-0a E2 5 pc's printed at rated temperature Bars are .1314" thk 1 perimeter All surfaces (no fill, just surfaces) 45 degree surfaces 10. As natural is not a specific color, we are working on a Pantone equivalent. 11. Living hinge is using the material flexible properties as a hinge assuming 2000 90 degree transitions. 12. As nylon will take on water, only air cooling should be used.

 

 



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