Re: [Emc-users] direct drive lathe spindle

2024-11-04 Thread andy pugh
On Mon, 4 Nov 2024 at 05:46, Ralph Stirling via Emc-users wrote: > Motor: RI85 model 2Nm rated, 5Nm peak, 48V 16A $178 I like the idea of frameless motors, and I have two. One is currently in toolpost grinder, but I am struggling to drive it. (I have blown up an STMBL and an AliExpress BLDC driv

Re: [Emc-users] direct drive lathe spindle

2024-11-04 Thread Thaddeus Waldner
Here’s an idea: look for a high count thru-hole absolute encoder with an additional coarse pulse output. Use pulse for tracking speed in normal lathe mode and absolute output for tracking position in C-axis mode. > On Nov 3, 2024, at 11:05 PM, Ralph Stirling via Emc-users > wrote: > > I am

[Emc-users] direct drive lathe spindle

2024-11-03 Thread Ralph Stirling via Emc-users
I am toying with the idea of building a benchtop lathe around a Taig 5C headstock, with a direct drive motor. Frameless motor components are available relatively inexpensively now from AliExpress and some other suppliers, and could make a very clean, compact machine. The spindle tube on the Taig