Printing PEEK

Topics around mechanical design, controller and electronics. Mods & hacks welcome.
mb300sd
Posts: 71
Joined: Fri Mar 30, 2018 7:22 pm

Printing PEEK

Postby mb300sd » Thu Dec 13, 2018 9:22 pm

Has anyone tried printing PEEK on the N2 with the E3D mod? I've been looking into it and the N2 and it seems to just barely make the cut. The E3D copper block is capable of up to 500C and the N2 bed just meets the recommended 120C. I plan on replacing my bed soon anyway with a thicker, stiffer sheet of MIC6 with a 120V heater and solid state relay, so 150C+ should be fairly easy.

https://www.3dxtech.com/peek-3d-printing-filament/

The main issue is enclosure temperature. I've mainly been printing Nylon, with the enclosure heated to 70C without issues. I've added additional cooling for the touch screen and motion control boards already.

What material are the cable chains and electronics boxes made of? I assume the clear plastic is polycarbonate, with a glass transition of 147C. Are the black parts ABS? If so, pushing to around 100C should be possible with some insulation, and get me well within range for PEEK.

Perhaps a flexible cooling duct going to the extruder/motor/electronics would be a good idea too.

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Vicky@Raise3D
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Joined: Fri Mar 25, 2016 3:54 am

Re: Printing PEEK

Postby Vicky@Raise3D » Thu Dec 13, 2018 9:59 pm

Clear plastic is polycarbonate. Electronic box is ABS. Cable chain is Nylon.

luissv
Posts: 8
Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Fri Dec 14, 2018 9:09 pm

Hi, I print peek in other printer with bed at 110 C, I am buying a Raise Pro plus, my question, is there a kit to replace the extruders to raise 400C to print peek?, no care about the bed, 110 is ok for me

Luis

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Vicky@Raise3D
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Re: Printing PEEK

Postby Vicky@Raise3D » Fri Dec 14, 2018 9:13 pm

I'm sure that Pro2 series cannot meet your needs. As the firmware is close source that you cannot modify the limitation for heating at least.

luissv
Posts: 8
Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Fri Dec 14, 2018 9:45 pm

Uhmm ok, maybe in ths future un upgrade???, I work with medical implants and peek is an option, your printer ir great, but with peek option would be incredible

Luis

mb300sd
Posts: 71
Joined: Fri Mar 30, 2018 7:22 pm

Re: Printing PEEK

Postby mb300sd » Fri Dec 14, 2018 9:49 pm

luissv wrote:Hi, I print peek in other printer with bed at 110 C, I am buying a Raise Pro plus, my question, is there a kit to replace the extruders to raise 400C to print peek?, no care about the bed, 110 is ok for me

Luis


I'd suggest getting a used N2 or N2+. It's much more modifiable.

Do you mine sharing your PEEK settings? Any issues with warping at only 110C? Do you heat the enclosure?
Last edited by mb300sd on Sat Dec 15, 2018 8:39 am, edited 1 time in total.

luissv
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Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Fri Dec 14, 2018 10:11 pm

Well, I tried all config recommend, but I fount is great, in my case, printing over PEI sheets, with bed at 20 and enclosure at 40 or 50 degrees, no problem with warping

luissv
Posts: 8
Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Fri Dec 14, 2018 10:13 pm

The problem is I bougth a very good price a Pro Plus, a new machine, I didn´t know about the brand but seems very good product, and is only 100C I need to print my peek, I supposed was possible to change the extruder

mb300sd
Posts: 71
Joined: Fri Mar 30, 2018 7:22 pm

Re: Printing PEEK

Postby mb300sd » Sat Dec 15, 2018 8:44 am

How big are your implants? I want to print PEEK and Ultem parts for my car, and my only attempt so far had significant warping. I guess with small parts, it isn't as much of an issue, but alot of the parts I want to print are pretty close to the 305x305mm limit. I don't want to play with it much more since the filament is so expensive for failed prints. I haven't tried PEI yet, so that might be a good idea.

NylonX is strong enough for most things, and I've been using it alot, but I want to make parts that be exposed to 120C+ coolant under high pressure and post-turbo intake air at 50psi that can sometimes reach 200C. I'm currently having a motor built with pistons/rods/crank that will be able to withstand around 2000 horsepower, but I'm designing all the intake/exhaust/turbo parts myself.

I recently purchased a OMAX ProtoMax waterjet to cut a bunch of the accessory brackets and suspension parts, but still need to be able to print PEEK/Ultem for more complex geometry that can't be cut out of flat sheet and welded. The strength and weight savings are simply incredible for automotive applications.

luissv
Posts: 8
Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Sun Dec 16, 2018 3:00 am

Hi, well my implants are average of 120 mm x 120 mm x 50 mm (cranial plates), and using PEI I avoid the warping that was present when use heated bed

Luis

luissv
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Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Sun Dec 16, 2018 6:43 pm

A question, I though the model was Pro Plus, but is N2 Plus, so, with this model is possible to upgrade to print PEEK??

Luis

mb300sd
Posts: 71
Joined: Fri Mar 30, 2018 7:22 pm

Re: Printing PEEK

Postby mb300sd » Mon Dec 17, 2018 10:30 am

That's what I'm trying to do now. At the very least, you'll need to swap to the E3D V6 hot ends, with a copper block and titanium heat break.

viewtopic.php?f=4&t=4841

The parts I'm using right now,
https://smile.amazon.com/Raise3D-E3D-v6 ... B077RXJNPR
https://www.filastruder.com/collections ... r-block-v6
https://www.filastruder.com/collections ... t-break-v6
https://www.filastruder.com/collections ... 1171575940
https://www.ebay.com/itm/60W-Ceramic-Ca ... 2466096624

I've ordered parts for an upgraded heat bed that can handle much hotter temperatures, but haven't received everything yet.
https://www.discountsteel.com/items/C25 ... _Plate.cfm (1/4", custom cut to 13 x 13 3/8", exact size of the original bed)
https://smile.amazon.com/approx-KEENOVO ... B00V81ZI70
https://smile.amazon.com/TinaWood-SSR-4 ... B07CZ5W8M9

I've also heated my enclosure. Right now, I'm running this heater inside it, I might need to add a second one. The internals are a basic ceramic heating element with a nice bracket with a computer fan attached, really easy to strip down and mount in the printer. It's currently controlled by a STC-1000, but I'm working on modifying Marlin to have it G-code controlled. Will post on Github when I'm done.
https://smile.amazon.com/Portable-Mini- ... B07GSSMRQR
https://www.ebay.com/itm/12V-24V-110V-2 ... 4062420782

You'll definitely want additional cooling for the touch screen and motion control boards.
viewtopic.php?f=17&t=12677
viewtopic.php?f=17&t=13083

I stuck some copper heat sinks on the CPU and RAM for good measure after I took that pic.

I don't know if the heat will cause issues with the stepper motors, but I did find these cheap 40mm water blocks that can be attached if it becomes an issue. If I go that route, I'll probably machine a water cooled E3D adapter to go along with it.
https://smile.amazon.com/Cooling-Alumin ... B078MK5GG9

luissv
Posts: 8
Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Thu Dec 20, 2018 3:32 pm

Hi, did you complete the upgrade?, please let me know if it works

Luis

mb300sd
Posts: 71
Joined: Fri Mar 30, 2018 7:22 pm

Re: Printing PEEK

Postby mb300sd » Tue Jan 08, 2019 1:38 am

Slight update.. Bed heater FINALLY showed up. Just a quick test, 175C no problem, in less than 5 minutes. 1/4in MIC6 with 3 point leveling makes leveling the bed super easy.

IMG_20190107_203429.jpg

IMG_20190107_203446.jpg


Water cooling parts for my stepper motors are in as well, putting it together tomorrow, drinking and watching the natty right now.

IMG_20190107_203515.jpg

luissv
Posts: 8
Joined: Fri Dec 14, 2018 8:20 pm

Re: Printing PEEK

Postby luissv » Fri Jan 25, 2019 9:08 pm

But what temp in extruder??, shoould be over 390 C

Luis


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