I have the 3+ and boy howdy am I tempted to get the upgrade kit for the 4 along with the multi-color add on. Does anyone have any insight into either kit? The additional colors sounds so cool. And I definitely want faster motors with smaller steps…

  • I sold my Mk3 and ordered a Mk4. My reasoning was that, if I buy the upgrade kit, I will have many unusable parts, which are technically still good. By selling the Mk3 for 300€ to a colleague, I got about the difference between full Mk4 and upgrade kit.