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investigate a way to label feed tubes E1 and E2
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We need a way to identify easily which feed tube goes where. If the tubes are plugged into the wrong extruder the filament sensor will detect a run out.
@mjpelletier mentioned a printer that can print onto heat shrink tubing as an option. He has some samples in R&D and they look very professional.

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west created this task.Dec 10 2018, 10:46 AM

A heat shrink tubing printer I use for my home business is the Kroy K4350. It prints black lettering on white or yellow tubing. The tubing is from Kroy and comes in several widths. The printer retails for $599 and 100 ft. rolls of tubing start at around $130.

DaniAO added a subscriber: DaniAO.Dec 10 2018, 11:13 AM

@mjpelletier do you have any photos that can show what it would look like? Or examples we can see? Then we can get stakeholders input on this.


west added a comment.Dec 10 2018, 11:16 AM

@DaniAO he has a harness with the shrink tubing in R&D

Was able to take this over to marketing and they shrink wrap was okay.

@mcoronado was wondering if we could label them on the printed parts. The caution hot label wont cover the entire front of the blower shroud, and if there was a way to put the E1 an E2 on there?

Also, is there a way to label them on the filament sensor?

Any other thoughts on how to do this?

west added a comment.Dec 26 2018, 11:28 AM

I dont think labeling the blower shroud as e1 and e2 and the sensor e1 and e2 will help, especially if the printer is enclosed on the sides. We can still label the shroud and sensor but we really need to label the tubes, they are easy to mix up

DaniAO added subscribers: gyukish, Megan, lansky.EditedDec 26 2018, 1:45 PM

If you can remember, the back filament tube goes to E2, and the front goes to E1. Would it be enough to document this in everything for the customer? or is it necessary to have these labeled?

There is concern about the shrink wrap (which only comes in white or yellow with black lettering) will make the eye focus on that. We could do stickers, but there is concern about getting them applied evenly and them staying on, as well as the eye focusing on those.

I am not sure if there is a different color PTFE tube we could, but kind of run into the same issues.

@lansky @Megan @gyukish @mcoronado feedback on this or any other ideas?

I personally would want to go a bit overboard with the identification. One of our big features is that the printers are incredibly easy to use, almost idiot proof. While this wouldn't be a major irritation, I could see it as something that would pop up in technical support as a common "issue".

The stickers were a nice touch but I've seen them peel off easily enough that I don't think it's really the best solution moving forward. I like the idea of labeling the tubes near the end, so long as it's not a big label and contrasts nicely against the tube to make it easy to read.

Labeling near the end of the tube isn't a great option, as they may have to be trimmed every so often. The ends will get chewed up a bit from where they are pushed in on the tool head.

tutley added a subscriber: tutley.Dec 27 2018, 7:12 AM

@DaniAO the PTFE tubes wont get up chewed up if we move to the printed tube clamp. They also make it easier to remove the tube

Maybe different colored tape on each? It's a lot like the sticker idea but should be more resilient. Otherwise not sure how else to mark them.

DaniAO added a comment.EditedJan 2 2019, 8:28 AM

@lansky do you feel that labeling them is required? of if we make it clear in the documentation which is which would be enough?

Megan added a comment.Jan 2 2019, 9:09 AM

I am with @gyukish that we do need to identify / label tubes, as we are known for our ease of use and the "we thought of everything" aspect of our products. I think many people would be alright with the clear documentation, but there will be a fair amount that are still confused, and having labels clearly on the feed tubes will assist with it.

@DaniAO I think it would be very beneficial for the easy of use reasons that others have mentioned. If we don't it's not the end of the world, but we will get some customers who get confused and plug them in wrong.

west added a comment.Jan 8 2019, 7:29 AM

I know cluster would probably hate it but make a printed tube, one black with the number one on it and one green with the number 2 on it

@west are you suggesting that cluster print the whole tube? Or just a part used to label it?

I would be worried about the interior of the tube not being smooth enough and generating drag on the filament, which could impact the print. Not sure if it's a legitimate concern or not.

west added a comment.Jan 8 2019, 11:36 AM

Just a part to label them like a tube collar so it would fit around the feed tube

west added a comment.Jan 8 2019, 2:07 PM

For example

DaniAO added a comment.Jan 8 2019, 2:13 PM

@west, can you model one with a 2 and print?

I would be interested in how well these would stay on.


@DaniAO I like it a lot, especially the multi colored filament sensor, really good idea. Do the labels on the tube slide around at all though, that's probably my only concern?

@gyukish they don't slide around very much at all. I will see if I can get a couple from @west to bring over to Lago.

@DaniAO I agree, I like this solution. My only concern would be if they constrict it enough to cause eventual feeding issues, especially over long prints. If the OD and ID of the tube is big enough though, I don't foresee it being an issue. Something to keep an eye on maybe.

++ I like the look, and should be very clear to the customer. If there is any confusion and does get messed up, I suspect it would be very straight forward correction for support with an aha moment from the customer.

@TyTh these sit on the PTFE tubes but don't restrict them.

I think this looks good. Will these fan covers be on the final version?

Orias awarded a token.Jan 10 2019, 1:34 PM
west added a comment.Jan 10 2019, 1:49 PM

@eBeardslee yes it was approved in T4862. FHCS will be used in place of the 2x BHCS that are in the picture

MikeR added a subscriber: MikeR.Jan 11 2019, 12:49 PM

This will also benefit production as well. It will be clear to see a difference in the parts, and will help putting it together in the right spots.

@Hob @mcoronado could we get some feedback from you please? wanting to get this one signed off on so we can finalize the BoM.


I really like this solution. I was worried that the heat shrink was limited in color scheme and the type is too small. This is better.

DaniAO added a comment.EditedJan 15 2019, 7:33 AM

@west this is approved. I know part numbers have been created, but I am guessing BOM needs to be updated. Is there anything else?

west added a comment.Jan 15 2019, 9:09 AM

I think that is it.

Tube Collar 1 is 1 is PP-GP0430

Tube Collar 2 is PP-GP0431

west added a comment.Jan 15 2019, 9:18 AM

BoM updated to have tube collar 1 and 2 with pn pp-gp0430 (1) and 431 (2)

Steven closed this task as Resolved.Jan 15 2019, 9:37 AM

This is now merged to master.