MK10 Hotend Accessories for 3D Printer Makerbot Hotend Kit Silver XZ3DMK10HE5

Didn't fit my 24v creator pro, so I assume they must be for 12v heaters. I returned them, but other than that, they were good quality and mk10 size.

So, these blocks are available from a number of vendors, quality and mounting provisions vary a lot. These particular ones have two sets of M3+M4 threaded holes, you can mount stud thermistors of either thread or mount the cheapie bead types on either exposed side. If your original MK10 head has just an M3 screw with a small pit for the thermistor bead, you'll need to come up with a M4x6mm buttonhead screw and washer if you intend to mount it like the original. Use the M3 hole for the bead. Otherwise, the blocks are sized correctly, inside and out, nice fit to my heaters, nozzle and filament tube both fitted perfectly in the 7mm threads. Comes WITH a set screw for the heater cartridge, some don't. MK10 silicone socks fit well, bent up new clips to hold them in place. About as good as they come without spending a whole lot of money for not much more. And fast Amazon delivery, on a holiday, no less. Will have to see how they hold up after a few dozen removals and replacements of the threaded parts, my usual form of failure on these, stripped threads.

What you see IS NOT what you get. The first picture in the listing shows a nicely machined piece of aluminum with a nice surface finish. The second picture you see a cheap casting. This listing is for the cheap casting in the second picture, not the nice looking block in the first. For your reference you can find generic cheap MK10 heat blocks elsewhere for about 70 cents each...My bigger issue is that the heater hole that is supposed to be ~6.0mm in diameter is measuring over 6.5mm. I know they show the hole as 6.3mm, but still 6.5mm is significantly oversized.Combine this block with a "standard" 620 heating element that measures around 5.8mm, you wind up with a ton of free space.Really disappointed here considering I paid $13 for this.

The threading on the top arrived shot so it can't be assembled correctly.EDIT: it turns out my old tube for the top can screw in, so I'm unsure what the exact issue is. Revising from a 1 star to a 2 star as the other dimensions are correct. That being said, everything it ships with should work together, it's a little silly for it not to.

Precise and clean. Nozzle threads in all the way on both sides, which the originals would not. Only complaint is the heating element is 0.1mm too small for flashforge creator pro's heater elements.