Partial Answer Another clogged hot end question... desperate user

I have had my Robo 3D R1 for a couple years and the last couple months have been nothing but one challenge after another.

The hot end just started getting clogged over and over. I would unscrew the very tip and that worked at the beginning, but then wasnt enough.

I purchased a new tip, but that didnt work.

I purchased a new "heater cartridge" for the block and a new "thermistor" and replaced that and it seemed to work but it starting clogging again.

so i bought a whole replacement hexagon hotend from robo3d and replaced it all which had the tip, the barrel and the thermistor... and it still clogs.

i cant post links to show what i am talking about but the PLA (yes, tried 8 different spools to see if was vendor specific, or color) gets stuck in the top part of barrel in the shaft on the way to the hot end. I now have 2 barrels , the old one and the new one i bought with clogged PLA that i cant remove because the hot end doesnt heat this section up. I am going to take a torch to it tonight to see if I can get it operational.

I think i am talking about (which requires me to loosen the quick release plate to access) :
1) the heat sink (fins)
2) the heat break

what am i doing wrong? or what should i check?

 

I have reviewed and followed the sticky thread that is how I got the printer operational again.

However I can't figure out why it keeps happening. I can go maybe one or two prints before I have to take everything apart to get it running.

 

roger that. i will try and post back.

 

i am tired of this printer... was great... now it is complete GARBAGE... i cant figure it out... i spend hours unclogging it and then it starts to print and then it stops extruding after a layer or 2 and then hardens and then i cant get the PLA out... WTF...

 

I don't have the exact message but I have seen something about "Temperature fell too much during print!"

I have a new fan coming that cools the heatsink today.

After that I am going "office space" on this piece of garbage. I am glad I didn't buy the C2

 

well i am done... i broke the the thermistor wire trying to clean out another clog... tired of this piece of garbage...

 

Ya. That was my 3rd resistor. I bought one from a parts store, then one came with the hot end from robo3d hot end that cost me 75 and the one from my friend.

I need to walk away from this one for awhile.

 

I need to get this running by this weekend... I need to find a hot end on Amazon. I am not going by pay robo3d for another replacement and have to pay $60 for overnight shipping and maybe have it friday. What e3d hot end should I get? I see a few versions... Lite, all metal, gold... And a few knockoffs.

I have another printer ordered but it won't be here until after Christmas

 

I ordered a couple options on Amazon. Hopefully will get things running.

 

I was in your shoes several years ago. I got the E3D v6 All Metal from Filasturder per probably Mark's recommendation. They seem to be the better price over printed solid right now. Pick up a few extra Thermister Cartridges while your there as well. The hot end from Robo never seemed to work well for me either. 1 print, than clogged. Didn't matter if I had an oiler on.