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I still have all these parts available. Everything was removed from a working Bridgeport R2E3 when I converted it to emc2. All parts were working at the time and I believe they still work, but I...

I have received written permission from Hardinge to redistribute scans of the manuals for the Bridgeport R2E3.

http://emc2-buildbot.colorado.edu/~seb/r2e3

Here's the pics: http://picasaweb.google.com/seb.kuzminsky/R2E3#

I dont have any board identified as PS2/EHC...

Here's what I have:


EPU (1-93-5790)
BCI (1-93-6969)
ELI aka EDLI (1-93-6188)
LCD Screen with cable (1-93-5234)
EFP (1-93-4119)

Hi Revshift, I may be able to help.

I recently removed the fully functional Boss8 control from an R2E3 in order to retrofit the machine with emc2. I still have all the boards I pulled off, and...

The encoders on my servos produce RS-422 (differential) signals, which is exactly what the 7i33 accepts as inputs. The 7i33 converts the signals to TTL for the 5i20.

Right, one of each of those three boards, plus the 50-pin ribbon cables that connect the 7i3x boards to the 5i20, plus a bunch of spare wire to connect the 7i3x boards to the wiring terminals on the...

The electronics were pretty straight forward. The BP came with complete circuit schematics & all the wires in the machine are labeled. It was just a matter of figuring out what wires carried what...

Congrats on the new machine! $500 seems like a really good deal if the iron's in any kind of reasonable shape.




I recently converted a Series 1 R2E3 from Boss8 to emc2. It was totally...

One of the lead hackers on the EMC2 project (an open-source machine controller for Linux), is busy adding support for tool changers where the tools move from spot to spot. Here is the machine that...

I think that there is currently no great CAD/CAM solution for Linux/EMC2, but here is a list of some to try: http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?Cam.

HeeksCAD and HeeksCNC seem to be...

How do you like your 622 after a couple of months? Any juicy pics of the machine & your projects? :)

If you have a free PCI slot, consider a 5i20 or 5i23 "Anything I/O" board from Mesa Electronics. These work well with EMC2, and can drive both steppers and servos, using the HostMot2 driver. Price...

I have no experience with any Linux CAM software, but the Cam page on the EMC2 Wiki has a big list.

You should check the manuals to make sure (read: i take no responsibility for if the smoke comes out!), but...

I would guess the drive wants the 7i33's ground on its "Analog -" input pin, and...

It's a bummer that first example hostmot2 config had the watchdog commented out in the .hal file... I think that confused lots of folks.

The new hostmot2 configs in 2.3 all have the watchdog...

My machine is still a work in progress... I haven't selected a servo amp yet. :o

I'm leaning towards the Mesa 7i29.

There are two things called "drivers". One is software that runs on the PC and talks to the motion control hardware, and the other is electronics that provides power to the motors.

There are...

The watchdog setup is dependent on the control hardware you're using.

I'm most familiar with Mesa's Anything I/O boards, which connect to the host PC via PCI or EPP. On these boards (with the...

Are your gibs adjusted? If they're not, that might give your table some wiggle.

Anything that advertises EPP support, and that doesnt use a NetMos/MosChip chip. The chipset is not usually advertised on the box, you'll probably have to look at the board itself and see what it...

Super nice! I love the dual-chain counterweight and the timing belt drive.

Are you using the stock leadscrews & nuts? How is your backlash?

I made a servo clock when I was testing stuff during hostmot2 development. I bypassed the motion planner and went straight to HAL. The script looked something like this:



#!/bin/sh
while...

The parallel port outputs TTL signals: digital on/off signals at 0V and either 3.3V or 5V. You'll definately need interface electronics to convert that to +- 10V. Servo amps that take +-10V expect...

I'm thinking that by feeling the machine working in my hands, I'll gain a better understanding of the machining processes, the behaviors of the cutting tools and materials, and the limitations of the...

I'm planning a ballscrews-and-servos conversion of an X2. I plan to have handwheels, and the ability to use the servo encoders for DRO.

For "manual mode" the servo amplifiers will be powered off,...

15 feet is a long way for a parallel port cable... Buy a short, high-quality cable and see if that makes a difference.

What are your emc2 timing parameters like? Did you use stepconf to make...

Thanks Hoss! :)

Next I'm going to try to make your belt drive conversion.

I got my X2 set up and made some chips! For my first project I chose to make a bunch of clamps to hold down my little vise. I documented the build process here.

I know next to nothing about...

This is not exactly a hobby-class machine...