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John, I use a parallel port mode for the stepper driver. ?The Raspberry Pi has a 40 pin header that can be configured to drive any such device. I currently use a Byte2Bot level shifter to drive a 25

Roy, Could you elaborate on that a little more. I do not understand what you are describing. Thanks, Dick -- http://www.homemadetools.net/ forum/ OFF- SET-tailstock-center-65965#post105972

NC Screw cutting can be done with the Unimat without spindle sensing. Use a single point rotary screen cutting bit. There is a single Gcode that cuts a helix path. It cuts any diameter, pitch or

For NC screw cutting you will nee some sort of encoder on the main spindle (the Unimat PC had this). That then implies that the controller must have a suitable input, with a fast enough response.

One thing to keep in mind. Most of those modules are mostly for CNC routers or 3D printers. Automating a lathe is slightly different. Even MACH2/3 had a different user interface for the Lathe Option.

To further muddy the already murky CNC waters, you have something like the DDCS 3 or 4 axis stand-alone CNC controller. The DDCS was originally a very low-buck offering from China that went belly-up -

Thanks John, your advice is much appreciated. ?A modular system certainly makes more sense, and LinuxCNC seems very full of functionality, with the various GUIs etc. As always it is the learning

As always you have to decide how modular you want to be. An all in one unit like used for 3D printers will still have to have drivers that function with LinuxCNC or MACH3/4. And if one of the drivers

I now understand that there are hardware controllers and software controllers. LinuxCNC is a software controller, circuit boards like the TinyG are hardware controllers (that receive gcode). Just in

Hey Royce, MESA doesn’t make the stepper drivers. Just the interface from the computer to the stepper drivers. So how are you creating the step/dir signals from the Pi to the stepper drivers? With

I use NEMA17s for my Unimat SL conversion. ?Get dual shaft versions since they allow easy manual override. I use cheap Chinese stepper drivers, although MESA may be simpler. I now use a Raspberry Pi

Peter, This is one option for a 3 or 4 axis set of drivers. Reasonably inexpensive. I even bought two more than 10 years ago and haven’t used them yet.

Thanks John for the replies and the comprehensive information. Nice YouTube video too. I’m in the UK BTW. It may be far more complex than I first thought! Some serious research will be required I

Oh and BTW, I did find that the Arduino based electronic gearing required a 600 PPR encoder but apparently the encoder they recommend doesn’t have an index pulse (Z). LinuxCNC needs an Index pulse

Hi Peter, There’s no end of stepper motors and motor drivers in various combinations. And everyone will have an opinion on what is best so I’ll leave that to others. On my Gingery Lathe I have

I'm lucky enough to have about three quarters of a second Unimat 3 to play with, and (while this is a huge rabbit hole that I probably don't need to dive down) I'm interested in trying out some CNC

I got my U3 with the intention of making small parts for large format cameras and accessories... but so far I've mainly been working on things to 'improve' it (DC motor, collet holder, threading

Thank you, Andrei! -- http://www.homemadetools.net/ forum/ OFF- SET-tailstock-center-65965#post105972 http://www.homemadetools.net/ forum/s...995#post112113 (

M40 x 1.5mm Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ Sent: Sunday, August 25, 2024 9:08:00 AM To: [email protected] <[email protected]> Subject: [Unimat] Thread

Does anyone know what the thread size is on an ER-32 collet closer nut? I want to adapt my Unimat the nose to fit the collet closer nut. Thanks, Dick -- http://www.homemadetools.net/ forum/ OFF-