#Crimp can't crimp

1 messages · Page 1 of 1 (latest)

visual sleet
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Title crimped properly but encountered a CWF

IMG_20250218_013058390.jpg
versed merlinBOT
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AI Help

It sounds like you may be referring to encountering a "Clogged or Wet Filament" (CWF) issue during the 3D printing process. This can happen if there is a blockage in the extruder or if the filament is wet and causing issues with extrusion. To troubleshoot this, you can try clearing any blockages in the extruder, drying out the filament, or adjusting the printing temperature settings.

WARNING: This response is AI generated and may contain errors.
pine wing
versed merlinBOT
runic vessel
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what is the exact issue?

pine wing
runic vessel
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does it not let you insert it into the housing or does it break when inserting?

visual sleet
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It was working but now wasnt

runic vessel
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thats like complaining in a dealership that your car doesnt start

visual sleet
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Hence CWF

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Cascading wire failure

visual sleet
runic vessel
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what is the issue. like just saying it doesnt work wont help much

visual sleet
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Doesn't work

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That's the best I can describe it

prisma lily
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Those crimps look like they need to be redone.

visual sleet
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I've followed all the advice on crimping and still doesn't work

prisma lily
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I don't think you're following it very closely then, sorry

visual sleet
prisma lily
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The -14C (aka no connection) means they are not

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You have no connection between the thermistor and the board

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So some of your wiring is not okay

runic vessel
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the entire connector looks crooked, the insulation crimp doesnt look like it doesnt rolled over correctly and is now digging into the insulation

visual sleet
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But it was working just 10 mins ago

prisma lily
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Man. Your crimps are improper, they really are, I understand you do not believe us

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But everything is showing they are not okay

visual sleet
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Stuff don't just spontaneously breka

prisma lily
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Yes it does when the wires break due to bad crimping or connections being iffy

buoyant ingot
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send a better picture

runic vessel
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it does if you dont crimp it correctly and just movement causes it to break

visual sleet
runic vessel
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where it correct strain relief?

prisma lily
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This is what I mean. We cannot help you if you're just going to dig your heels in and say it is fine when it is very clearly not.

visual sleet
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I've been hear for 3* hours

prisma lily
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Follow our instructions. Redo your crimps, carefully.

visual sleet
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Is there a crimping service I could my cables to

prisma lily
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You just need to take your time and follow the video better

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You were almost there just had some issues since you're new to it

visual sleet
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I've been here for 3 hrs and I've school work to do

prisma lily
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which is okay

visual sleet
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And I need this printer up yesterday

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Can I just solder over it and call it a day

prisma lily
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No.

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I will not provide more advice until you have redone the botched crimps myself, I am very sure they are the source of your issues.

visual sleet
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I'm this close to selling my printer

runic vessel
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sometimes going slow is the way to be fast.
you can try to rush stuff and have to redo it 15 times until it works
or do it right once in half the time the fast way goes

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but yea we cant really help if we dont get much informations on what doesnt work.

pine wing
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I am remembering telling you to "get proper strain relief or you will regret it" some time ago...

visual sleet
visual sleet
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This one had lots of strain relief

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And it still failed

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Next printer I'm going solder to solder no connectors

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But all the boards have connectors

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Should I just sell this printer

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Idk

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I'm depressed

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I've been at it for 3 days now

runic vessel
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looking throu the pictures you posted on the wiring issue.
would guess you use the wrong crimp connector size for the size of wire you try to crimp onto, that will solve your connectivity issues.
you could probably try to strip a longer section and fold the striped section over to get more bulk and a better connection.

visual sleet
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I feel worthless

visual sleet
runic vessel
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some of the crimps where also badly done, where the insulation is crimped into the wire crimp part

runic vessel
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also dont trust these for the full amps MF3 is rated for

visual sleet
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Should I buy pre crimped then

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Idk

runic vessel
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that would fix your crimping issues and you could just solder it in

visual sleet
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It's just a moneypit at this point and it's infuriating wires are the only thing stopping me from printing

runic vessel
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ive had no issues crimping MF3 in the past with the PAD11. i did sourced genuine crimps from Mouser and Digikey

visual sleet
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So what should I do

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Do I just try again or just sell

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Or spend like 100 bucks to get wires

runic vessel
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try to fold over your 3 strain wire a few times to give the crimp a chance to have contact

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like with 3 strains there is a chance that it wont stay inside the crimp, or the crimp just seats next to it

visual sleet
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I also don't know if the female thermistor I crimped is sending signals

runic vessel
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measure resistance of the thermistor

visual sleet
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I don't have a multimeter

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And I can't afford to buy one

visual sleet
runic vessel
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well then consider it shrödingers cat

runic vessel
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and with the informations i have

visual sleet
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Should I use this

61UB1nrqXJL.jpg
visual sleet
runic vessel
visual sleet
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Or crimp to ferrule

F7638129-01.jpg
runic vessel
# visual sleet ?

Schrödinger's cat: a cat, a flask of poison, and a radioactive source connected to a Geiger counter are placed in a sealed box. As illustrated, the quantum description uses a superposition of an alive cat and one that has died.
means the state of the cat is either dead or allive but it cant be confirmed until observed

visual sleet
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Because I need this up and running asap for my senior mechanical project

visual sleet
runic vessel
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you could use Wago terminals, they are springloaded

runic vessel
visual sleet
runic vessel
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got a few hundred for 20$

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but not sure if they work for your sketchy wire

visual sleet
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I sadly live in Singapore so extremely long and expensive shipping

visual sleet
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16awg wire and wago terminal?

runic vessel
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would get a thermistor that doesnt use sketchy wire

visual sleet
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It's from mellow

runic vessel
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not sure how cheap it where. but probably to cheap considering the issues it caused

visual sleet
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Well not this thermostor specifically

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So I have to disassemble everything again...

runic vessel
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ngl if you have this many issues. toss the printer and get one that works out of the box

visual sleet
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It's just cause of the wire 😦

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It's a fast printer

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It should not be down just because of such a pathetic cause

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I built her

pine wing
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if all else fails: Inline wagos

visual sleet
pine wing
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Wagos are lever locks

runic vessel
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wagos are spring loaded

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they push the wire down with a spring

pine wing
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A lot bulkier than crimps but way easier

visual sleet
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I've been thinking of taking the electronics out and putting them in their own box

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Would this help??

runic vessel
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no you open the lever, push in the wire, close the lever

pine wing
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(for low power stuff like the hotend you could use the Aliexpress special of these)

runic vessel
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but you want to strainrelief them properly

visual sleet
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Double sided tape them to the wall?

runic vessel
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ziptie them to the toolhead

pine wing
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print a plate with a post and ziptie the wire bundle to that

runic vessel
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also add some hotglue to the wire to prevent it from wiggling around

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or ziptie them to the toolhead

visual sleet
pine wing
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Fix it then print it

visual sleet
pine wing
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The extruder has two threaded holes on the front, right?

runic vessel
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you will have to do that. otherwise it will fail again

visual sleet
pine wing
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So? Add the strain relief post into that design

visual sleet
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Cause I'm thinking of putting everything in a box and putting it on the top rack

IMG_20250218_020841406.jpg
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So the control screen, PSU and motherboard are away from the printer

pine wing
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Just a post there and zipties

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For example

visual sleet
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Issue is how can I print something if my printer is down

pine wing
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Fix the wires and do a slow 15 minute print

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Or screw a random bit of something on there and tie them to that

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I cut up parts of failed prints for jury rigged shit vaulthah as long as it works

visual sleet
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I don't know if I can mentally do this

runic vessel
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then complain for all eternity about your broken printer

visual sleet
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I've been at it for days

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It's 2am now so 4 hours now

pine wing
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Go to sleep

visual sleet
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I have to send an email to Magpul first

pine wing
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Come back in a few days

visual sleet
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And design a mechanical design

pine wing
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Leave it be for a while

visual sleet
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Should I hire someone to fix it?

pine wing
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"need" as in "your life depends on it" or "need" as in "I wanted to do this and feel obliged to do so"

visual sleet
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Because it's a long ass commute to my campus

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About 1.5 hrs each way

pine wing
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Same for me to workyay

visual sleet
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Yeah but there's only limited times I can use the school 3d printer

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So if I really wanna be effective I will have to print at home

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So can I just replace all the microfit with the wago?

pine wing
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Sure, one for each wire to wire connection

versed merlinBOT
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visual sleet
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Cause I've measured it it says ol' for everything

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Even the untouched resistor

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I'm getting o ohms for everything

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How do I measure

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Voltage is 0 too for everything

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I do have like 0.4mv from the thermistor

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Also I don't have wago inline connectors in my country can I use this?

IMG_20250219_200628267.jpg
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@runic vessel

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Still 0.L and I have no idea why

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Electrical engineering is just magic ah bullshit go

pine wing
pine wing
visual sleet
buoyant ingot
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do some practice crimps

visual sleet
visual sleet
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I just want to get it over and done with 2 days before now

buoyant ingot
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crimp better? idk how to help you atp

frank elm
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I mean does crimpers fully squish it and are you using right width slot

visual sleet
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Yet it's not working

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It's like the strain relief has broke the cable as well

pine wing
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There never was strain relief on your toolhead

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At least not from the pictures you shared

frank elm
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Can just run some spare wire back and see if that works?

visual sleet
visual sleet
pine wing
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If I knew I would tell you

visual sleet
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ill probably do it after graduration

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man its really the hardest part of a printer

pine wing
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I don't know, I don't even know what you tried to measure with the multimeter

visual sleet
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no dice

pine wing
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Of which part?

visual sleet
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Thermistor

versed merlinBOT
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dry saddle
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if it is a thermistor, i would measure the resistance across the two leads of it. It should be roughly around 100,000 Ohms at 25C for a NTC 3950 100K Thermistor

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Also regarding moving the electronics that is do-able but I would advise against that until you have the printer in good working condition. I did a tiny write up regarding crimping https://discord.com/channels/167661427862142976/1087062951007109301 and I always find the crimping guideline posters from various manufactures to be helpful in inspecting crimps

Rennsteig-QualityCrimpInspection_001.jpg
frank elm
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(so the 100k setting on meter if it has it or autorange)

dry saddle
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Actually this might be easier to see on certial rejections regarding a bad crimp

Molex_987650-2484.png
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If you crimp too tight you can actually break the wires under the insulation and cause intermittent connections that you don't discover until the wire flexes. What seems like is working will fail within a couple cycles of movement or cause unstable operation

dry saddle
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From what the other here have noted please do secure down your wire harness after you have it working to help prevent motion strain on the wires which can cause breaks in the wire over time or possibly tension on the crimps where it should not be

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I understand the wiring part of 3D printers can be very frustrating and things like WAGO 221 or similar can work or even help just test components so the are nice to have on hand.

versed merlinBOT
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visual sleet
visual sleet
visual sleet
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Might be the shitty chinese multimeter im using

visual sleet
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I could not find that at all on the interwebs

dry saddle
# visual sleet Reads 0.L sadly

The thermistor might be dead then or break in the middle of the wire occurred. oL usually means open lead meaning it’s not detecting anything. Do you have another you can test against?

visual sleet
dry saddle
# visual sleet Hmm why not tho, if Im moving to a completely different set of cables, why cant ...

You’d possibly have to extend every cable to run them longer and if the heated bed is a DC on the you want ensure you have the correctly rated wires and terminal for the job. While in theory it seems like an easy job, and it might be for you. I recommended against it without knowing your proficiency in electronics and cabling also what method are you going about extending the wires. Be it solder splicing, crimps and connectors, and making sure you label / document each cable / wire to hook it up.

visual sleet
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I nearly lost my marbles over this imo

dry saddle
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Ah yeah sometimes it’s best to take a break and come back with a clear mind. It can be hard given the situation you are in from what I read earlier

dry saddle
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Just so you can get your printer running

visual sleet
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I got university stuff to work on

dry saddle
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Ah yeah it’s important to focus on school. In hindsight only I miss college / university lol but not really with the homework, labs, and studying

visual sleet
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Yeah I was rushing this cause ideally I need to print stuff at home

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It's so infuriating that I can fix and repair the mechanical systems

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But get stopped at just cables

dry saddle
# visual sleet okay why is this shit not googable lol

It is but the correct search terms can be difficult if you don’t know what to search for. Typically i put in crimping quality guidelines or QA crimping but my google search results are aggregated to me most likely and i used to work in the custom manufacturing of cable assemblies and electronic boxes soooo its bias im sure lol

visual sleet
versed merlinBOT
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visual sleet
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Trying again the wire strippers are inconsistent

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Consistently pulling strands

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I'm so fucking sick and tired