My "new" Bridgeport R2E3

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A few photos of my new mill, which is now reassembled after being taken apart far enough to get in the garage. Garage doors are typically 7'0". The Bridgeport Series 1 family is conveniently 7'4". At 3500 pounds, you can't really just tip it over far enough to get through the door.

The original control is working, maybe about as well as it ever did, but it is flaky and prone to crashing. I will replace the control with EMC2 pretty soon. But, meanwhile, I can make parts. I made the first chips on it tonight.

The errors on the original "Boss 8" R2E3 control are a simple bitmap, displayed in hex, with the following meanings for the bits:

8000 electronics fault
4000 drive fault
2000 internal comm error
1000 front panel not sending valid key codes
0800 part program checksum error in stored program
0400 tool table checksum error in stored table
0200 ram failure
0100 rom failure
0080 system fatal error
0040 communications error
0020 EAF board communications error
0010 commanded move would exceed machine limits
0008 spindle not running for a non-G0 move
0004 cutter comp error #2, indeterminate intersection
0002 cutter comp error #1, no intersection found
0001 program error found by parser

(Thanks to Steve Stallings for this information!)


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