Diamondback nozzle clogged  

RE: Diamondback nozzle clogged

I have 3 Diamondback nozzles and have only had 1 clog when I swapped between 2 high temperature materials. I was able to resolve with a cold pull. Since then, no clogs. I generally run cleaning filament through them when I switch between high and low temp materials. Also, I don’t use the Diamondbacks with PLA. I use a standard brass nozzle with PLA. Otherwise, to me, it’s like putting ketchup on a wagyu steak. I did have a brass nozzle get clogged. I fixed it by throwing it away. 

RE: Diamondback nozzle clogged

One of those or similar might help get the matterial pushed down past the heat break, you will still have trouble if the nozzle has a split HF style design in the end though, might worth the try for such an expensive piece.

https://www.amazon.de/dp/B0FL2CXJD3?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1

Posted by: @micrified

Just wanted to add in my 2c, having also the Diamondback nozzle here. After around 5-6 prints the nozzle completely jammed, and I was only printing Prusa Galaxy Black PLA with the stock profiles. Trying to do a cold pull and or purge had no effect, because the jam was at the upper end of the nozzle where it wasn't hot enough to melt. It was also severed at the base, so I couldn't just pull it out. I stuck a stock brass nozzle on the printer and it kept going fine.

Today I spent maybe two hours with a heat gun at 400C running up and down the Diamondback nozzle, and used the included needle with my Core One kit to dislodge sludgy remains of the PLA inside. When I swapped it back in, I encountered the jam. So I had to do another round. I _finally_ got it to purge normally but the extruder gear was clicking the whole time (sign of trouble). And sure enough, the subsequent attempt at purging jammed (along with another cold pull attempt). 

I have to say I'm pretty exasperated with this nozzle. It definitely wasn't cheap, and I was really expecting a pretty set and forget experience with it. The suggestions to use a drill bit is interesting. Might try that next. However, I'm leaning towards just sticking with the brass nozzle for the time being. 

RE: Diamondback nozzle clogged

I'm not a fan of composite nozzles where a hard tip (ruby, diamond, hard steel ) is inserted into the main body. Many of them fail because eventually the tip gets loose from the body ( for instance, when removing a blob of doom ).  I use single part TC models on all my printers. Of course those aren't for systems where nozzle and heatbreak make a single part, like Prusa Nextruder or the Revos. If you own a MK3 series though, get a tungsten carbide nozzle and you'll have a nozzle that lasts forever. You can't wear them with abrasive filaments, you can't damage them with brass brushes or by over torquing. In all likelihood my TC nozzles will outlast my printers .. and myself too.

RE: Diamondback nozzle clogged

Thanks very much appreciate the tool suggestion. Looks far sturdier than the needles which need can easily be bent. 

RE: Diamondback nozzle clogged

I'd be willing to get a tungsten carbide if it's as reliable as people say. However that was sort of the reason behind getting the Diamondback in the first place and here I am :D. 

RE: Diamondback nozzle clogged

I just noticed Tungsten has pretty good thermal conductivity, possibly better than brass? Surprising.

RE: Diamondback nozzle clogged

Posted by: @artur5

I'm not a fan of composite nozzles where a hard tip (ruby, diamond, hard steel ) is inserted into the main body. Many of them fail because eventually the tip gets loose from the body ( for instance, when removing a blob of doom ).  I use single part TC models on all my printers. Of course those aren't for systems where nozzle and heatbreak make a single part, like Prusa Nextruder or the Revos. If you own a MK3 series though, get a tungsten carbide nozzle and you'll have a nozzle that lasts forever. You can't wear them with abrasive filaments, you can't damage them with brass brushes or by over torquing. In all likelihood my TC nozzles will outlast my printers .. and myself too.

BTW, the proper abbreviation (chemical formula) for Tungsten Carbide is WC, not TC. (The chemical symbol for Tungsten is W from the original German name "Wolfram".)

I also have single piece WC nozzles (0.4mm, 0.6mm, and 0.8mm) from Spool3D in Canada. I got them originally for my MK3 printer, and with the Nextruder adapter and a plated copper heat block (I got mine from Levendigs) I use them on my Nextruder based printer (first MK4, now C1+). I've occasionally clogged the 0.4mm nozzle when I've been printing with additives that I really should have been using a 0.6mm nozzle for, but cold pulls using the eSun cleaning filament until the tip comes out clean (usually 2-3 cold pulls) cleared up those clogs. I haven't gotten any diamondbacks because I've been pleased with my WC nozzles, and got them before diamondback came out.

RE: Diamondback nozzle clogged

I would have thought a WC nozzle would be made of porcelain 🤔