Rugged - Nylon 6 Resin

[Adrian_Garland]

Hello,

So this won't work in the 1.1 or 1.2 machines?

I wonder why not? Would be perfect for my prototyping needs...

https://shop.b9c.com/rugged-nylon6

Thanks

[akgold]

ask for a sample and read up on it's exposure properties
you may be able to make a new programing to the list you have now.
Many people have use other resins by doing this on the B9 1.1 and1.2

[Adrian_Garland]

Thanks AK, will check out the possibilities, I guess I can ask sales directly...

Just wondering the official stance...(would take too long to print, or not enough lumen power to cure at all, etc)

I guess just long shot hoping perhaps there is a way to get it to work with some trial use...

Guessing the core series has much more powerful light source?

Regarding the samples, I assume they are offering already cured samples and not an actual sample of the resin itself? : )

Thanks

[Adrian_Garland]

Just a warning to anyone else who might want to try the nylon resin.

It's VERY thick, too thick to flow back over the print surface in time. So not gonna happen. I guess this is why it's not listed as compatible.

I am experimenting mixing it with some other super thin MJ resin I happen to have on hand, otherwise a waste of 200 bucks.

I assume the properties will become brittle though, MJ is very brittle..so likely defeats the purpose...was hoping for usable snap fit parts..

I also have some spot HT and E I can mix with it as well...Will see how that goes, maybe I can get lucky.

I did contact sales ahead of time...and they said I could try, but they did not mention the fact that is is very thick.

So thick in fact, it's impossible to shake before using, (even though it says shake well on the bottle).

I even tried adding a large stone to the bottle to see if that would help shake (like marble in spray paint can) but rock does not appear to move.


: )

[Robert Howle]

You can slightly tilt the machine to allow for faster flowback. Resins designed for the 1.1 will work fine this way as long as build table and image are parallel.

Robert

Not saying this will work, just a thought since u are experimenting.

[Adrian_Garland]

Thanks Robert!

Was thinking about removing the sweeper and seeing if the PDMS might make it through at least one print, but this is much better idea.

Greatly appreciated... The nylon is designed for the "core series".

Will give it a try today and will update with results.

: )

(edit: no need to remove sweeper, just sweeper flap and tilt machine as suggested). see post below...

[Adrian_Garland]

Success!

Well thought for a while that this would not be possible, but thanks to Robert's suggestion,
have successful prints with Nylon 6 on the V1.1 machine.

Left legs on machine lifted about 1.5", and removed flap in the sweeper (to prevent resin overflow).

Filled with resin to about half way up vat edge on right side, (still allows for sweeper to remove and PDMS breathe

while allowing flow just in time for next layer.. (And resin gets a bit more fluid as it heats up as well)

Took some time and patience to figure out exposure times... (removing debris from this thick resin is challenging).

Settings: (approximate) Overall resin is pretty fast.

(50Xy resolution and slices) Adjust accordingly to your printer needs if you try this..

Base: 4.0 and Over: 3.0
Attach Base: 9.0 Attach Over: 3.5

(my bulb hours low @ 150 for reference..)

Also x motor likely needs to be strong... Resin is super thick so could possibly inhibit x motion on machines with weak x motor?

Printed material is flexible/bendable before before cure, super hard after heat cure.
(1 hr post cure @150F in oven...softens while hot and then cools super-hard)

Very happy with the results! Amazing for sure.

Exactly what I needed, more like having industrial-level printer with nylon-like quality resin!

High resolution prototype or "finished product" quality samples are now possible straight from this printer.

Snap fit parts working very well, durable and appears to be no-wear long lasting, does not break or become brittle,
overall super tough material!

Thanks so much to the b9 team for developing this incredible resin!

[Robert Howle]

Congrats on the work flow success.


Robert

[Adrian_Garland]

Thanks Robert, am still getting great prints!

Nylon is the best for all the non-jewelry needs! Hands down.

Here are my final settings after a couple weeks of printing:

Exposure times:

3.75 Base
3.00 Over

Attach Layer times:

2 attach layers
9.0 base
4.5 over

Also changed the Pre-exposure delay to 3.5 seconds. (allows longer to flow into position between layers)

and lastly vat speed @ 75% and 75%...

Keep in mind the nylon is a lot harder to clean, not only in the vat but also the parts themselves. No biggie.

Been using compressed air/iso-alcohol in spray bottle, over and over...
Then into a jar with alcohol and shake....
Then I throw them in a cup of alcohol and into ultrasonic filled with water for a few minutes.
I put a weight in the bottom of the plastic cup so it does not tip over.
One last spray with air before curing in oven. Then I leave in the sun for a few hours..(final touches).
Can't afford the real cleaner right now.

Results are stellar! Exactly what I needed, so happy to have this machine for this!