Quote Originally Posted by BakerEvan View Post
Do these work well:
http://www.ebay.co.uk/itm/New-0-4mm-...item19e1dd48bf

I am very tempted to purchase one.
The Chinese 1.75mm clone I got from E-Bay came with a quick disconnect that had a short length ( 15mm ) of Bowden tubing already inserted. Either by a manufacturing error or by jarring during shipment this unpleasant 15mm of tubing became jammed. I did pry it out but a small scraping of the tubing (PTFE) made its way toward the nozzle. The quick disconnect uses a shark's teeth grip. This small scraping ( shard) of PTFE caused the hot end to jam. Another unpleasant feature is the nozzle is machined into the heater block so the nozzle can't be removed making extracting this shard of PTFE difficult. The E-bay seller wasn't responsive.