When most reprapers are using stepper motor plus coupler to connect a m5 or m8 threaded rod for the Z-axis, Makerbot has been using Linear Stepper Motor with Acme Leadscrew and Delrin Nut.
The printing result is absolutely different. Here is a link:
RobotDigg is a professional Linear Stepper Motor manufacturer. And we begin to offer the special Nema17 stepper motor with Tr8*8 280mm Acme Leadscrew and 350mm Lead Screw n Delrin Nut for 3d printers since this May.
Delrin Nut
Besides the Delrin Nut(POM Nut), RobotDigg offer a Tr8*8 Anti-backlash Nut(ABN) for high end request.
During this period, there are many Customized Threaded Rod Nema17 with Lead Screw request for different applications. 460mm Tr8*12 Leadscrew is offered for a faster movement request.
Threaded Rod Stepper Motor with Acme Leadscrew n Delrin Nut or ABN is caused attion by reprapers. Talks on Z-axis can be easily find:
https://groups.google.com/forum/#!topic/makergear/eBvL9WZn_II
https://groups.google.com/forum/#!topic/mendelmax/Fo_sAZr3S3U
http://www.printrbottalk.com/forum/viewtopic.php?f=106&t=3903
http://www.shapeoko.com/forum/viewtopic.php?f=11&t=1636
RobotDigg are glad to see this trends for high resolution and precision. And we decide to put more Threaded Rod Stepper Motors both Nema14 and Nema17 with Acme Leadscrew n Nut for kinds of main reprap 3d printers. Huxley Nema14 Stepper Motor with 180mm Tr5*2 Acme Leadscrew, 300mm long ones for prusa i3 or other types of 3d printer, and NEMA17 Stepper Motor with 210mm Tr8*8 Lead Screw n Delrin Nut for prusa i3.
When we decide to put 210mm Tr8*8 Acme Leadscrew on shelf, we are against a 205mm option.
Well, this means we welcome a specific request on threaded rod with acme leadscrew stepper motor Order request.
And don't hesitate to contact us for a Customized one even though the lead time is a bit long when prototyping.
