Problem/Procedure Description. Requirements. Problem/Procedure Solution. How-To Document. Updated on: 11/13/2008 By:Christopher Ware

Transcription

1 Problem/Procedure Description Performing maintenance on 95s, 95sII and H100 Requirements Ball Bearing Grease (LPKF P/N ) Tri-Flow Teflon lubricant aerosol. 3-in-1 Multi-purpose Oil Electronic Component Cleaner or Brake Cleaner 4mm Allen wrench 3mm Allen wrench T20 torque wrench (H100 only) Rag Set pins (set of 2) Plastic Red strips (set of 2) Problem/Procedure Solution 1. Perform preliminary check on the milling machine. a. Is there at least 6 bars (@100psi) of air supplied to the machine? i. If no, adjust the air inlet to at least 6 bar (@100psi) b. Can the machine move to the Exchange, Home and Pause positions? c. Does the machine complete a successful tool change? d. If using an H100, does the machine set the tool depth properly? e. Does the vacuum come on when starting the spindle motor? i. If no, verify that the selection switch on the vacuum is set to auto. f. Does the vacuum stay on after shutting down the motor? i. If no, go to the configuration menu and select settings. Press the unlock key. In the vacuum on time, place the number 20 into the space provided and press OK. 2. Clean and lubricate the Y axis leadscrew. a. Move the machine to the exchange position. b. Remove any tool that is in the collet. c. With the 3mm Allen wrench or T20 torque wrench, loosen and remove the four (4) screws on the Y axis cover. d. Lift Y axis cover e. With electronic component cleaner and a rag, clean the Y axis leadscrew. f. Move the machine head along the Y axis to gain access to the other side of the leadscrew. g. Apply the ball bearing grease onto the Y axis lead screw. h. Place the Y axis cover back onto the machine. i. Insert and tighten the 3mm Allen or T20 torque screws. j. Move the machine head to the exchange position. Page 1 of 6

2 3. Clean and lubricate the Z axis guide bars. a. Apply two (2) drops of 3-in-one multi-purpose oil onto the Z axis guide bars. b. Manually move the machine head up and down so the oil is pushed into the guide bar stops. 4. Clean and lubricate the working depth limiter. a. If conducting maintenance on an H100, go to step 6. b. Disconnect the vacuum hose from the depth limiter. c. With the 3mm Allen wrench, loosen and remove the screw on the right side of the working depth limiter. d. With the 3mm Allen wrench, loosen the screw on the left side of the working depth limiter. This screw can be accessed from the bottom side of the L bracket. e. Rotate and remove the working depth limiter via the table cutout (at the exchange position). f. Unscrew the black knurled wheel from the working depth limiter housing. g. Clean the working depth limiter housing and black knurled wheel with the electronic components cleaner. h. Spray the threads of the black knurled wheel with the Tri-Flow Teflon lube or Silicone lubricant. The Teflon spray has the best results. i. Screw the black knurled wheel into the working depth limiter housing. Caution: The threads of the black knurl wheel can strip the threads of the working depth limiter fairly easy. j. Place the depth limiter into position under the spindle motor. k. Tighten the 3mm allen screw on the right L bracket until it is a little less than hand tight. l. Tighten the 3mm Allen screw on the left L bracket until it is hand tight. m. Re-tighten the right Allen screw until it is hand tight. 5. Lube the spindle motor. a. With a permanent marker, mark the position of the motor in relation to the motor block. b. Disconnect the air hose from the spindle motor. c. Loosen the two (2) 3mm Allen screws on the right side of the motor block to enable the spindle motor to be lifted up and removed. d. With the supplied pipe cleaner brush, clean the collet by inserting and removing the brush into/from the collet. e. Apply two drops of the spindle motor lube onto the air slinger (fly wheel looking attachment on the bottom of the spindle motor) with the guide rod supplied with the motor cleaning kit. Page 2 of 6

3 f. Re-install spindle motor into the motor block. g. Tighten the 3mm Allen screws to lock the spindle motor into place. 6. Clean and lubricate the X axis leadscrew. a. Shut down boardmaster and turn off the power to the machine. b. Disconnect all cables from the controller box. (X and Y axis stepper motors, head cable, motor cable and communications cable) c. Tilt the machine away from you, so that the machine head is on the bottom of the machine and the connectors on the controller box are facing towards you. d. Unscrew the four (4) black feet from the bottom of the machine. e. With the 3mm or 4mm Allen wrench, loosen and remove the two screws holding the controller box to the machine carriage. f. Remove the controller box from the machine carriage by lifting up and towards you. g. With the electronic component cleaner, clean the X axis leadscrew, which is located underneath the machine carriage. h. Apply the ball bearing grease onto the X axis leadscrew. i. Place the controller box underneath the table top and slide towards the rear of the machine. j. Insert and tighten the four (4) black feet. k. Insert and tighten the two (2) 3mm Allen screws. l. Connect all cables to the controller box. m. Turn the machine on and start boardmaster. n. Enter tool status Page 3 of 6

4 7. Initialize the machine. a. Go to the configuration menu and select settings. b. Press the unlock button c. Press the initialize button. d. When prompted to measure the motion range, select yes. e. Once complete, press ok on the settings window. f. Enter tool status in the window that appears. 8. Verify motor height a. Refer to the how to document, how to set motor height. 9. Align tool bar a. Refer to the how to document tool bar alignment for 95s and H Drill new set pins. (may be skipped if using an H100) a. See the how to document how to drill set pins. Page 4 of 6

5 11. Perform front to back registration check. a. Press the import icon, or go to the file menu and select import then LMD. b. Find the location of the LPKF tutor board. The pathway should be C:/program files/lpkf52/data. c. If using an H100, import the fiducial.lmd file. This is also located in the same folder as the tutor board in step 11b. i. Go to the edit menu and select placement ii. Single click on the fiducial.lmd file on the left iii. In the bottom right corner, change the count to 2 on both X and Y axis and change the X displacement value to 80 and the Y displacement value to 60. iv. Press OK. d. Press the move icon. e. With the mouse click and drag the board to a location that is available for the machine can create the board in the FR-4 base material. i. Recommend placing the board towards the outside of the machine area instead of along the centerline. ii. If using the fiducial file, repeat this step for the fiducials so that it surrounds the tutor board. f. Complete the marking drills phase. g. Complete the drill plated phase. h. Move the machine to the Pause position. i. Flip the PCB board j. If using an H100, complete the read top phase. k. Complete the milling top phase. l. Move the machine to the pause position m. If desired, remove the PCB board from the machine. n. Visually inspect the top layer. Verify that there is no offset in the relation of the milled pads to the drilled holes. Go to step 13. o. If there is an offset present, and the pads are milled in the same direction, measure the offset with the microscope. Divide the number in half. Note this number. Go to the configuration menu and select settings. Press the unlock button. Place the offset number into the Y correction value and press ok. p. If there is an offset present, and the pads are milled in a clockwise or counter-clockwise direction, repeat steps 8, 10 and 11. q. If there is an offset present, and one hole is high and a different hole on the other end of the board is low, go to step 12. r. If using the camera with the H100 and an offset is present, see the how to document how to set camera offset. s. Move the PCB to a new location t. Re-drill and mill the tutor board as stated above in steps 11 d through 11 q. u. Adjust the Y correction value as required. 12. Conduct orthognality test. a. Contact LPKF technical support at (503) or at support@lpkfusa.com. References Protomat machine manual LPKF Technical Support how to set motor height document tool bar alignment for 95s and H100 document how to drill set pins document Page 5 of 6

6 Created on 10/17/ :04:00 AM Created by Christopher Ware PHONE: Page 6 of 6