It seems that @Printrbot is working on a new paste extruder. I hope it won’t take long until they release it.
Dual head with PB&J and I have a sandwich maker. 
Just don’t try to print with chunky.
Better than my fab@home model 2 already @Brook_Drumm .
I designed a paste extruder that fit the bill for the Bocusini food printer so those will start shipping soon. They were awesome, agreeing with my one request for the partnership-- that it be open sourced. So we will publish it on ship day. As long as I can ship all of their orders and make even more, we will sell them too.
One neat perk from the project collaboration is that we added min and max endstops on the syringe plunger extruder so it won’t destroy itself. We wrote the Extruder endstop feature right into Marlin, so we will release a Printrbot Marlin fork on github soon. We also stripped a ton of non-Printrbot code out to make room for new code.
Honestly, after Mick dug into the code, we discovered there is a ton of junky code in there. We are planning on fixing some of the shortcomings in Marlin by adding new functionality. I don’t want to promise anything, but we think the community will appreciate the improvements.
Another cool thing is that we are building a plugin for octoprint to give access to the new functionality. First, buttons for loading, unloading or switching paste extruders.
While some may wish we left support for other printers in there, we aren’t. We are publishing the code, so anyone can do whatever they want. It’s really more about trimming the code-- last check our forked version is 78k… We needed the space.
I’ve also designed a gummy candy printer for s partner in Germany-- soon to be announced. It is a completely new printer designed just for them so isn’t really suited for regular 3D printing, due to limited z height. It is totally different than any printer I have designed- stacking X, y, z and e all in an overhead box, leaving the bottom free from any wires at all. The bottom of the perfect cube is plexiglass for maximum viewing from all sides… Just a print bed. Total build volume is small when compared to the overall volume of the box, but it’s by design. It was fun building a printer for a different reasons and different requirements. A printer for gummy candy from a paste syringe doesn’t have to have a big print area.
This new printer has a beautifully machined aluminum extruder heater block that can run up to 100C. I want to try printing chocolate! It also has a preheater for getting the next tube of candy ready. It runs on Marlin, controlled by octoprint and includes a camera too. We added a mount for touchpads so it’s really easy to run in a retail environment. We are putting the finishing touches on it, trying to make it really easy to run by newbies. With such tight constraints, it actually makes operation really simple. We are really proud of it.
So that’s the paste extruder news. It’s been different building printers for other companies. I’ve always built what I’ve wanted and I did want a paste extruder, but it’s been a good exercise for us to work with others. Specifically, since we aren’t food or candy experts, working with real food experts has been cool. We are good at hardware and software so these partnerships with very unique material experts is wonderful for both.
Bon appetite
Brook