Few days ago I was revisited @Simon_Litwan from http://teil3.ch who developed a 3d printer named “Freedeepee” using linear bearing (ODR), here a few photos, last photo shows the pellet filament extruder part he is working on.
PS: Some closeup photos are a bit blurry, took the photos with my older cellphone.
He sells the printer already indeed, but it’s not yet online mentioned at http://teil3.ch (perhaps in a couple of days, he mention he works on an online shop update). He is very busy finishing a batch of a few dozen printers now. The pricing is about 1200 CHF assembled or apprx. 1000 EUR excl. shipment as far I know. He is operating out of Zurich, Switzerland.