833
edits
Changes
Jump to navigation
Jump to search
Line 64:
Line 64: + + Line 72:
Line 74: − − Figure out how to drip code to the Heidenhain (Ed). Line 85:
Line 85: − + Line 96:
Line 96: + + − − The TNC 151 can be programmed in Heidenhain conversational language, or G-code. By default, the keypad labels indicate their functions in conversational mode. In G-code mode, the keypad buttons take on different meanings. The controller originally came with a keypad overlay, attached by magnets, that had different labels for the buttons for use with G-code. We don't have this. Improvising something would be helpful. Line 120:
Line 120: + + + + Line 145:
Line 149: +
no edit summary
Check the BP maintenance manual for other adjustments that are required.
Check the BP maintenance manual for other adjustments that are required.
Double-check scaling and backlash machine parameters to verify that they are accurate.
'''Software'''
'''Software'''
Parameters can be accessed by pressing MOD repeatedly until you are prompted to enter a Code, which is 95148. Care should be exercised with machine parameters. In this screen, pressing EXT then NO ENT causes a full dump to serial. Pressing EXT and ENT makes the machine look to read them, but sending them as an ASCII file via a terminal program doesn't seem to work.
Parameters can be accessed by pressing MOD repeatedly until you are prompted to enter a Code, which is 95148. Care should be exercised with machine parameters. In this screen, pressing EXT then NO ENT causes a full dump to serial. Pressing EXT and ENT makes the machine look to read them, but sending them as an ASCII file via a terminal program doesn't seem to work.
Set up the tool chain.
Set up the tool chain.
Move the Heidenhain power source back to the Bridgeport control.
Move the Heidenhain power source back to the Bridgeport control.
The Handwheel uses a Heidenhain HR 150.001 5000 F4 controller, Id.Nr. 220 954 01, S.Nr. 1300302 A. It is very fragile, using a glass encoder wheel. We have determined that the light bulb that illuminates the wheel, triggering a signal from the photocells, has burned out. This will either need replacement, or we will need a new encoder.
The Handwheel uses a Heidenhain HR 150.001 5000 F4 controller, Id.Nr. 220 954 01, S.Nr. 1300302 A. It is very fragile, using a glass encoder wheel. We have determined that the light bulb that illuminates the wheel, triggering a signal from the photocells, has burned out. This will either need replacement, or we will need a new encoder. Ryan contacted Heidenhain, who does not repair this, and said "this was a very particular lamp/lens assembly, with the lamp focused through the lens in a particular way – not exactly a flashlight bulb." Heidenhain has a replacement: "ID. Nr. 540940-07. It is the current version of the HR 150. List Price $594.00" At Dean's request, Ryan shipped the encoder to Oracle Encoder Service on 5/6/15 for repair; quote was $290.
'''Purchase'''
'''Purchase'''
Investigate the air leak at the back of the machine. It appears to be leaking at the filter drain. Could be a missing O ring or a cracked bowl.
Investigate the air leak at the back of the machine. It appears to be leaking at the filter drain. Could be a missing O ring or a cracked bowl.
Spindle brake does not appear to be connected.
Clean up the BP service manual scans and add the document to the wiki.
Clean up the BP service manual scans and add the document to the wiki.
== Closed Issues ==
== Closed Issues ==
The homing sequence could not complete due to a bad index signal from the y axis rotary encoder. By adjusting the alignment of the encoder to the motor, the signal appeared. This adjustment may need attention in the future.
The homing sequence could not complete due to a bad index signal from the y axis rotary encoder. By adjusting the alignment of the encoder to the motor, the signal appeared. This adjustment may need attention in the future.
Drip feeding G-code works. Machine parameters were changed so that data transfer occurs in FE mode. The Windows program TNCserver (provided by Heidenhain) will allow the TNC 151 to save and load files, as well as to run files in drip feed mode.
The TNC 151 can be programmed in Heidenhain conversational language, or G-code. By default, the keypad labels indicate their functions in conversational mode. In G-code mode, the keypad buttons take on different meanings. The controller originally came with a keypad overlay, attached by magnets, that had different labels for the buttons for use with G-code. We don't have this. Improvising something would be helpful. Update: The intention is to keep the machine permanently in G-code mode. Ryan switched the machine and used a label maker to re-label the changed keys.
== Reference ==
== Reference ==
* http://faculty.etsu.edu/hemphill/entc3710/heid-op/heid.htm - University course documentation using a similar setup. Note that it uses G-code, not Conversational mode.
* http://faculty.etsu.edu/hemphill/entc3710/heid-op/heid.htm - University course documentation using a similar setup. Note that it uses G-code, not Conversational mode.
* http://faculty.etsu.edu/hemphill/entc3710/nc-prog/index.htm - Discussion of CNC. The document appears unfinished.
* http://faculty.etsu.edu/hemphill/entc3710/nc-prog/index.htm - Discussion of CNC. The document appears unfinished.
* http://www.encoderservice.com/ - Oracle Encoder Service LLC. They still repair ancient Heidenhain encoders that Heidenhain no longer supports.