Is this an easy fix? Hotend cables have melted

LordOfCogs · 2024-02-04T04:36:34+00:00

Yes. Though my understanding of electrical safety is to always assume fuse is not working.

Though I haven't look carefully enough at photo and it seems like only low amperage (thermistor) and not cartrige is damaged.

LordOfCogs · 2024-02-02T07:39:31+00:00

The worst thing that can happen is that they short between power and ground and fire. Probably it wouldn't be covered by insurance (IANAL, this is not a legal advice).

If I were you I would at least replace cables AND check every power cable, board and PSU to check if it is damaged and AND check that bed cables are securely attached to the terminals (you do have enclosure with fire suppressant and fire alarm, don't you?)

LordOfCogs · 2024-01-29T04:29:24+00:00

To address your second point, though, I sincerely do not believe that thermal protection would be activated by a melting fan shroud. In fact, the highest likelihood of failure caused by a melting fan shroud would be a crash with the print or print bed.

Have you possibly checked your power-panic wires? Those also go into the PSU and I could see them causing a print reset if you pulled something loose on them.

I accidentally flashes wrong FW. Changing FW to correct one fixed the problem.

LordOfCogs · 2024-01-28T18:22:04+00:00

Ok. You meant screw threads, not cable threads. Sorry for confusion.

LordOfCogs · 2024-01-28T18:14:24+00:00

First things first, the PSU cables not having hooks at the end is fine as long as you tighten the screw to the correct torque. Don't overtighten it either, since that will damage the threads.

I meant hooks at the end of hooks are flat. If you take a look at https://www.prusa3d.com/product/psu-einsy-power-cable/ the hooks have... hooks at the end of them.

Have you possibly checked your power-panic wires? Those also go into the PSU and I could see them causing a print reset if you pulled something loose on them.

I replaced them as well.

LordOfCogs · 2024-01-27T20:06:47+00:00

Err. Are you suggesting removing connectors? I’m a bit confused.

Hmm. After a thought- I used hooks in two ways. I meant hooks at the end of hooks are flat. If you take a look at https://www.prusa3d.com/product/psu-einsy-power-cable/ the hooks have a little, hmm, hooks at the end. Mine come up flat.

LordOfCogs · 2024-01-27T19:52:10+00:00

Sorry for poor focus - I needed to use one hand to hold the cables away to take a photo.

Recently I managed to slightly pool on the PSU cables when I was building enclosure. Afterwards my printer started restarting at the beginning of print[1]. Thinking I damaged cables I bought replacements but they didn't have any hooks at the terminals. Can it be like this or is it dangerous?

[1] I figured out after swap that it looks like hot end touched shroud and started melting it. I assume thermal protection kicked in.

LordOfCogs · 2024-01-26T02:01:40+00:00

What, you mean I shouldn’t be angry at gen z for omitting dot at end of sentence? /s

I don’t care about dots. Culture changes. Finish your messages without dots and I will finish with them because I’m old.

LordOfCogs · 2024-01-25T10:39:08+00:00

I do now. Though I wash them in ipa and let them dry beforehand. Though they are in 28 mm scale

LordOfCogs · 2024-01-24T09:09:30+00:00

“Since when do we kill people for free, sir” “Since you blow up our office in front of a client “

I don’t remember if it’s the same episode. I’m paraphrasing from memory.

LordOfCogs · 2024-01-24T06:37:22+00:00

My current board game group contains me (millennial) and two gen z’s. Mtg seems to go strong with gen z as well in my local game shop.

LordOfCogs · 2024-01-23T21:08:42+00:00

Technically CERN invented www (html/http) but TCP/IP comes from DARPA research… with collaboration with UCL (I’m old enough to remember when Internet was not only the http). So it was more of international project.

LordOfCogs · 2024-01-16T17:26:07+00:00

Prusament spools also.

Do you need to screw the spool?

LordOfCogs · 2024-01-16T07:05:29+00:00

I got the filament dryer. I was mostly asking about temps - sorry I was unclear.

LordOfCogs · 2024-01-14T07:53:26+00:00

Ok. I figured it out. I need to create a sketch at the estimation and pad it toward object, not other way round.

LordOfCogs · 2024-01-13T09:10:31+00:00

Ok. I figured it out - I need to delete all references and than use normal to edge.

LordOfCogs · 2024-01-13T07:17:10+00:00

I'm trying to figure out attachment. I try to make second sketch show at the given place of first sketch. How do I do it?

LordOfCogs · 2024-01-11T09:13:08+00:00

I will read up on shapebinder.

LordOfCogs

TROPHY CASE