Dropped in on MatterHacker's open house last night.

Dropped in on MatterHacker’s open house last night. Spoke to a few people and took in the new digs. They have a lot more space now along with a staff of 21 people. They had what looked like a good turn out with a mix of people ranging from new to veteran users. Ran into @Whosa_whatsis and Joan Horvath and briefly chatted with them.

I salivated over the racks of filament while my daughter played with a 3D pen. They had a few deltas on display, and it had me thinking I should build one. I really like the compact space.

What is the green liquid?

Probably coolant water treated with an anticorrosive (automotive antifreeze)

I asked as well and it’s coolant. I know coolant will raise the boiling point, but I’m not sure I’d want to introduce that into my system and not sure it would be needed given the amount available to circulate. Would hate to manage a clean-up of a spill.

@Tim_Sills Coolant has it’s benefits, and the most important one for a 3d-printer is the anticorrosive properties. On my printer I use it to cool down three motors, and a hot-end, and the temperature never gets above 40 degrees C, so the boiling point isn’t very important.
As every modern cooling system is completely closed, chances of a spill are minimal. The biggest advantage for me is the low noise level.

@Rien_Stouten interesting got any links?

@Jarrid_Kerns look at my previous posts?

To confirm, yes, it is just plain antifreeze. I’m not really worried about corrosion, though that is certainly a nice benefit. I really just used it because I thought it would look cooler contrasting with the black frame of the machine.

Still got some things I’m working on to finish the machine (the bearings were all printed/replaced - http://www.matterhackers.com/articles/dual-extrusion-and-printable-upgrades), and we’re working on our 3+ extruder slicing in MatterControl, but I’ll be posting another article when it’s complete.

It will include files for the parts I designed, as well as a full summary of all the mods done to the machine.

@Tim_Sills thanks for coming, and you should definitely build a delta :slight_smile: