Bar Puller
We have a cheap no-brand bar puller from Aliexpress which can be used to automate production of parts, to a certain extent. To simplify programming of the bar pulling operation we have written a simple macro that you can use.
Usage
G65 P2000 A5. B-25. C14.76 D15. E54. F250. Q2. T707;
| G Code | Description |
| G65 | Call macro program. You cannot change this. |
| P2000 | Macro program number. You cannot change this. |
| A5. | Rapid approach position in Z where the very end of the gripper will rapid to before feeding into the part. |
| B-25. | Grip distance – the Z position where the gripper will feed to when taking hold of the stock. |
| C14.76 | Pull distance. How far to pull the stock. This is incremental, not absolute. To determine this value, calculate the difference between front of the stock and the chuck before and after a part has been parted off. |
| D15. | Rapid retract distance in Z – where the gripper will feed to before rapiding home. |
| E54. | Work offset to use (this is G54) |
| F250. | Feed rate to use for the grip and release portions of the code. |
| Q2. | Number of parts to make. |
| T707; | Tool number and offset of the gripper. |