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Princess Auto - Ottawa:Toolboxes !

Doggggboy said:
History would indicate that small groups of old white dudes nearly always think they know what they are talking about:rolleyes:
With varying degrees of success.
Click to expand...

Ya, but I was talking about how impressed I am by what OTHER old (and young) dudes know! I was not including myself. I think that rates a much higher degree of success than history would suggest. Especially since I am on the receiving end and therefore get to do the rating! ;)
 
Mike R said:
what / how does the Pi connect to control the CNC? I'm fairly familiar with LinuxCNC, having used MESA 7i76E cards on my mill (pickup pending) and on my Emco Compact 5. Always interested in low cost CNC control options.
Click to expand...
I will be using a MESA 7i96s via Ethernet connection.
That little PI board has Wifi, Ethernet, 2xHDMI, 4xUSB and more. IIRC paid $50 for the PI and $150 for the MESA board. Makes for a small and inexpensive CNC conversion.

All in CNC cost will be well under $500.
 
slow-poke said:
Well since the tool box story /sale came to a close 20 minutes after it started, may as well drift away....
This is my first post from a RaspberryPi that I plan to use for Linuxcnc for the lathe. I continue to be amazed at just how simple and fast it is to get a PI / Linux installed, running and connected to the internet everything just seems to magically work right out of the box, no updates, no drivers, just plug and play. This little Pi bord is not much bigger than a credit card and the largest chip is about the size of a quarter. No idea how Windows squanders hardware resources to the extent that a little $50 board can do all this and not need constant updates, security patches etc., impressive.
Click to expand...
We used to have a great patch of Raspberries when we lived in Saskatoon. Was about the only fresh fruit that would grow there. That, and Saskatoons of course. Raspberry pie was great, but nothing beat Saskatoon pie.
 
Mike R said:
what / how does the Pi connect to control the CNC
Click to expand...
There is a add-on ( Hat in RPI language) available that add a parallel port to the RPI.
byte2bot.com

Parallel Port Raspberry Pi Hat

This hat adds a DB25F Parallel Port to your Raspberry Pi. This is useful for hobby grade CNC routers or mills to use the Raspberry Pi as the main controller. The 5 axis CNC Breakout board is really inexpensive and available everywhere, and this hat is the simplest way to connect it to the Pi...
byte2bot.com
 
Gennady said:
There is a add-on ( Hat in RPI language) available that add a parallel port to the RPI.
byte2bot.com

Parallel Port Raspberry Pi Hat

This hat adds a DB25F Parallel Port to your Raspberry Pi. This is useful for hobby grade CNC routers or mills to use the Raspberry Pi as the main controller. The 5 axis CNC Breakout board is really inexpensive and available everywhere, and this hat is the simplest way to connect it to the Pi...
byte2bot.com
Click to expand...
Good to know. I'm a bit of a Mesa fan, I have used their FPGA boards for a really long time, they are well designed, with good noise immunity, industrial rated I/O and they off load tasks that need to be calculated/processed quickly.
 
Agree on Mesa cards being better. I've been there done that with parallel port stuff and the PC limits you far quicker than you think it would, plus the PC becomes virtually unresponsive at high stepping speeds as its using all its horsepower to make step pulses, and your inputs become secondary. If you are controlling a 3D printer or some other underpowered thing that won't kill or maim you that's ok, but I like my machines to acknowledge that I gave an input (usually to STOP!).
 
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