My CR-10 is also down... !

[The Hat]

I got somewhat carried away while using ABS filament on my CR-10, (First time) I ignorantly used to high a heat temp. in my hot-end and managed to fry it beyond use, it can and will be repaired.

The project I was working on was a tool dish (Tray) went very well and the finish was great, perfectly happy with it, but since then it’s been hit and miss with everything I tried to print since.

I now got very little decent quality from the printer, and every second project must be abandon, usually because the nozzle won’t deliver sufficient filament and the finished items look like the dog had a chew on them. (Just like ink starvation)

I pulled the whole hot-end apart and there was no PTFE liner inside it, on my last attempt to clear a clog I probably pushed out this liner because it had melted and became the blockage itself.

Now I’m just waiting on a delivery from China of two complete heads, a replacement and the spare and some other spare parts to repair the current damaged hot-end, it’s been a worthwhile exercise because now I know what not to do in future.

On another note the MP-mini is printing away and keeping me from having withdrawal symptoms from the downtime on the CR-10, I have to say, I've received great help and advice once again from our resident guru @ninj and plan on revising my printing habits on his say so...

P.S. the 3D printers are not as complicated as inkjet printers are, and far easier to repair that anyone could imagine, the bit on the end that does all the work is no more than a handheld hot glue gun...

 

[stratman]

I ignorantly used to high a heat temp. in my hot-end and managed to fry it beyond use

Ouch. Are you able to sit down yet? Try some Preparation H.

 

[The Hat]

Try some Preparation H

Preparation H is for use in a totally different dimension...

 

[stratman]

I am self-censoring as any further comment would endanger my angelic standing on the forum.

 

[Redbrickman]

Oh dear, not good news, but I'm sure it will all be ok in the end

 

[stratman]

in the end

Intentional or not, that was funny.

 

[Nifty]

managed to fry it beyond use, it can and will be repaired.

Wow, really sorry to hear that! So, you know it's beyond repair because of the melted tube? Which temp were you at for ABS? It would be good to know what to avoid!

far easier to repair

AGREED! i'm not usually one for precision fixing, but with a ll the videos, etc. online, it's doable.

China of two complete heads

Can you link to the ones you got? What made you decide on them vs. all the other options out there (stock hot-ends, e3D V6, clones, etc.)???

 

[The Hat]

Intentional or not, that was funny.

I know @stratman likes happy endings, and so do I.

The hot-end on the CR-10 was a clone to start with, and it was good quality, but the only thing I didn’t understand was why they would use a crappy heater block on the end of it, see the Pic, I couldn’t get the throat out of the block without breaking it.

Which temp were you at for ABS? It would be good to know what to avoid!

When I switched to the ABS filament I used 260 c at the nozzle end and everything seem to work perfectly, but I now know it wasn’t, I should never have gone above 240 c for the nozzle temp. and plan to use 190 c for the PLA.

Can you link to the ones you got?

Here is the link to the new Hot-end kit I ordered: -
https://www.aliexpress.com/item/Ful...32825427805.html?spm=a2g0s.9042311.0.0.5tuIHb
I chose this because it’s a similar V6 clone and it had the flat heatsink, which will fit my unit better without an add on, the round heatsink needs an extra bracket and I didn’t want to many pieces in the kit to make up.

I don’t see this as a problem, but as an exercise, and I get to know the workings of the printer sooner rather than later, I hope it give me a better understanding of how the printer works, when it happens it’s like your worst nightmare, but it’s only a very short dream...

 

[Redbrickman]

Intentional or not, that was funny.

 

[Nifty]

Here is the link to the new Hot-end kit I ordered: -
https://www.aliexpress.com/item/Ful...32825427805.html?spm=a2g0s.9042311.0.0.5tuIHb
I chose this because it’s a similar V6 clone and it had the flat heatsink, which will fit my unit better without an add on, the round heatsink needs an extra bracket and I didn’t want to many pieces in the kit to make up.

Wow, that's SO CHEAP! Any ideas how good those are? I've heard so many different stories about different hot-ends that I have no idea which I'd get if I needed to swap mine out.

(on a totally unrelated note: I've thought about trying larger nozzles to print even faster... but IIRC, the stock block can only handle .6mm and maybe .8mm. I'd be interested in giving it a try and see what that might do to prints.