Replacement for filament guide tube, Replicator 2X?

[Gian Pablo]

Anyone know what the filament guide tube is, and where to buy it?

I suspect the guide tubes are a little too short, filament is entering the extruder at too sharp an angle when the extruder is at the limits of X and Y (forward) travel.

I'd like to buy some of the tube and cut it a couple of inches longer.

[Andrew Aurigema]

It is not the stuff you get at the local hardware store ( no matter how much it looks like it )

Pretty sure this is what I got last time : 

Mc Master Carr

Tube Made of Teflon® PTFE, 1/4" OD x 1/8" ID

# 8547K23   about $3.25 / ft

[Jetguy]

MakerNot was using standard air line for the tubes back in the Replicator 1 days, Knowing them, probably didn't change it.

 

That said, I highly recommend this thinner wall more flexible PTFE tubehttp://www.amazon.com/gp/product/B00KJDKXDC?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00

Long enough for several printers- I know you have a fleet.

 

I think, don't count on this, this was close to the original air tubing. Might not be the exact size. http://www.amazon.com/gp/product/B00EZ511CM?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00

 

On Thursday, July 2, 2015 at 12:06:55 PM UTC-4, Gian Pablo wrote:http://www.amazon.com/gp/product/B00KJDKXDC?psc=1&redirect=true&ref_=oh_aui_detailpage_o04_s00

[Scott Booker]

I also got my replacement tubing from McMaster, but I believe I used 5033K31....

[Gian Pablo]

Thank you all!

The 2X uses white PTFE, the Rep 1 uses black air brake hose.

[Ryan Carlyle]

PTFE, PFA, and nylon are the only acceptable materials for the feed tube. PTFE is preferred. DO NOT use PET, PP, or other typical air/water service tubes. Half your extruder torque will go to drag friction through the tube. Which might be fine 99% of the time, but then if you get a little sticking/knifing/tangling at the spool, you'll lock up the feed path and airprint.

For printers that grip the feed tube with a pushfit fitting, you need to match the outside diameter (OD) that the fitting is for. But aside from that, pretty much any tube size with 2mm or higher inside diameter (ID) is fine, basically just pick the stiffness you want. I personally use 4mm ID by 6mm OD. 

[Gian Pablo]

I haven't had any issues with the black tube so far, but this sounds like an easy upgrade for the Rep 1, if I'm going to be ordering the tubing anyway.

[tramalot]

On the rep1's at least, I made some push in adapters to keep the tubes straight as they enter the top of the extruder, I'll look for the files as they are a life saver with flex or brittle filament.

On Thursday, July 2, 2015 at 12:06:55 PM UTC-4, Gian Pablo wrote:

[Gian Pablo]

I did the same thing for my 2X! It's a little brace to keep the tubes straight. Very helpful.

[Darrell jan]

With Rep1 a lot of us don't bother with the feed tubes. I'd been mounting my spools from above. But, maybe you can't do that with a 2x? Though it looks like you could make small holes in the lid, and feed through there, with only slight heat loss.