I have 2 Makerbot Replicator 2 series 3d printers as many know. These are very popular printer that is good enough for a entry level engineer and great for the individual who wants to create. There are many off brand machines that basically duplicate the makerbot . When I took my machine apart recently the first thing I noticed is nothing says makerbot on it , not the stepper controllers , not the reprap controller , or any of the steppers which tells me they outsource all of this. What I want you to take away from this is though makerbot has a great product there are excellent replacements or even upgrades.
The original tips that came with maker bots were prone to clogging and heaters wear out quickly. Here I am swapping out the original assembly for a mk6 bar assembly.