Reddit reviews Witbot PC4-M10 Male Straight Pneumatic PTFE Tube Push In Quick Fitting Connector for E3D-V6 Long-Distance Bowden Extruder 3D Printer (Pack of 10pcs)

Witbot PC4-M10 Male Straight Pneumatic PTFE Tube Push In Quick Fitting Connector for E3D-V6 Long-Distance Bowden Extruder 3D Printer (Pack of 10pcs) https://www.amazon.com/dp/B01KHN1HWY/ref=cm_sw_r_cp_apa_JV8NAbDXZJVZN

Take a look at this video, I was having the same issue until I replaced my ptfe tube coupler with one i found on amazon, and I have not had the issue since.

Actual nozzle clogs aren't common since they stay plenty hot and typically require contaminants on or in the filament, it's almost always in the heat break above the nozzle (like your pic shows).

There's a known issue with the CR-10 (and other low cost chinese printers) that the push connect fittings supplied with the printer aren't the best quality. They fail to grip the tube enough to keep it from wiggling out of place as the hot end moves. Even if you take during installation, it'll crop up again. Obvious fix is to replace it. (PC4-M10 push-to-connect) Adding a collet clip (is you don't have one already) might work.

https://www.amazon.com/Witbot-Straight-Pneumatic-Connector-Long-Distance/dp/B01KHN1HWY/ref=sr_1_13?keywords=bowden+collet&qid=1568132096&s=industrial&sr=1-13

For connecting to the table, are you talking something like [this?](http://www.Witbot.com/ PC4-M10 Male Straight Pneumatic PTFE Tube Push In Quick Fitting Connector for E3D-V6 Long-Distance Bowden Extruder 3D Printer (Pack of 10pcs) https://www.amazon.com/dp/B01KHN1HWY/ref=cm_sw_r_cp_apa_JsG2AbGTM7BT6)