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.
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.
The Taulman 618 filament 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 most 3D Printers. There are several great Forums and IRC Channels dedicated to helping new users.
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.
Yes, in fact several testers report excellent results with bridging.
Definitely! 618 delivers a beautiful printed finish.
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 - This must be "Cast" rather than "Rolled" MMCPN 8540K118
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.
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.
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.
No, as taulman is working on "taulman 680" and 680 is intended to be a medical grade polymer designed to meet ISO 10993
Current evaluations for medical uses are for strength, pliability and slippery features.
Shine or sheen from the translucent surface. This looks much different than PLA surfaces.
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.
Yes, any strong acids can be a problem. They will break down the bonding of threads and weaken the printed part.
Yes! At most, you may have to increase your retraction distance an additional 2mm - 3mm.
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.
The short answer is No. It is similar to trying to glue non-stick Teflon to non-stick Teflon. We use a 20-40 watt soldering iron for melting part edges to each other.
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.
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.