Saiper Aluminium V6 Heater Block Hot End Heating Block Specialized for MK7 MK8 3D V6 Printer Extruder (5pcs)

I ordered these to upgrade my bibo touch 2 3d printer. At first glance, things look great. However, after i put it on, I noticed a lot of filament coming out the back. I thought I had a defective one, so I put another one on.Same issue as in the picture. I looked at a brand new one and found the issue. The thermistor hole goes past the part the filament goes through. As pressure builds up and the filament is passed through, it then seeps out the back of the thermister part. Maybe machining another 1mm of tolerance to keep both parts separate would have solved this.

I got these at my husband's request. His main comment was the leads were long enough...if that helps anyone else.

These are advertised as being a compatible replacement for the E3D V6 heater blocks but they're not even close. They are shorter in length, the pattern of holes is not correct, and the hole diameter for the thermistor is not the same and only about 3 mms deep on the block. Total waste of money.

Their work great.

Good product good price