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startrite_bandsaw [2019-03-02 17:27]
mike Remove old costs section
startrite_bandsaw [2019-05-20 20:39] (current)
vzickus
Line 12: Line 12:
 ===== TODO ===== ===== TODO =====
   * Install dust collection   * Install dust collection
-  * Write some training docs 
- 
 ===== Training ===== ===== Training =====
  
 Training for this tool can be given by either of the maintainers listed below. Training for this tool can be given by either of the maintainers listed below.
- 
-The training is still in the process of being written. 
  
 See [[https://​training.ehlab.uk|training.ehlab.uk]] for details. See [[https://​training.ehlab.uk|training.ehlab.uk]] for details.
Line 24: Line 20:
 Also see [[https://​ehs.yale.edu/​sites/​default/​files/​files/​vertical-band-saw.pdf|Yale Bandsaw Training]] for extra advice Also see [[https://​ehs.yale.edu/​sites/​default/​files/​files/​vertical-band-saw.pdf|Yale Bandsaw Training]] for extra advice
  
-===== Maintainers =====+===== Speeds ===== 
 + 
 +^ Material ^ Speed (feet/min) (thickness < 0.5") ^ Speed (feet/min) (thickness > 0.5") ^ 
 +| Aluminium * | 1000 | 700 |  
 +| Brass  - Cast | 320 | 180 | 
 +| Brass - Soft | 1800 | 1000 | 
 +| Cardboard | 3200 | 3200 | 
 +| Copper * | 1800 | 1000 | 
 +| Iron - Cast | 180 | 100 | 
 +| Leather | 3200 | 3200 | 
 +| Plastics * *| 3200 | 3200 |  
 +| Rubber | 3200 | 3200 | 
 +| Silver | 1800 | 1800 | 
 +| Steel *| 180 | 180 | 
 +| Wood | 3200 | 3200 | 
 +* - cooling recommended in the manual. 
 + 
 +* * - cooling recommended for perspex in the manual. 
 +===== Saw blade width and minimum sawing radius ===== 
 +//Table copied from the manual.// 
 + 
 +This is only a guide. Always err on larger radius side. Use relief cuts, and drill relief holes where necessary. 
 +| Saw blade width | 1/8" | 3/16" | 1/4" | 3/8" | 1/​2" ​ | 5/8" | 3/​4"​| 
 +| Minimum sawing radius | 3/16" | 5/8" | 1" | 1 1/2" | 2 1/2" | 4"| 5 3/​4"​| 
 + 
 + 
 +===== Bandsawing practice ===== 
 +//Copied from the manual.// 
 + 
 +Maximum saw blade life : Medium saw blade tooth pitch, speed and feed.   
 + 
 +Minimum sawing time : Coarse tooth pitch, fast speed and heavy feed.   
 + 
 +Fine accurate finish : Fine tooth pitch, fast speed and light feed. 
 + 
 +===== Troubleshooting ===== 
 +//Copied from the manual.// 
 + 
 + 
 +**Blade wanders from true line:** 
 +  * Excessive feed pressure. 
 +  * Blade teeth dull or of too fine pitch. 
 +  * Guide inserts not controlling blade wear or incorrect adjustment. 
 +  * Blade tracking incorrect. 
 +  * Loss of set to one side of saw teeth. 
 + 
 +**Premature blade breakage:​** 
 +  * Excessive feed pressure, and/or too much blade tension. 
 +  * Worn or incorrectly set guides. 
 +  * Joint improperly welded and annealed. 
 +  * Blade too wide for curved cut. 
 +  * Bandwheels worn. 
 +  * Blade teeth of too fine pitch. 
 + 
 +**Blade bows in deep cut:** 
 +  * Excessive feed pressure. 
 +  * Blade teeth dull or of too fine pitch. 
 +  * Insufficient blade tension, and/or blade too narrow for depth of cut. 
 +  * Blade running off at start of cut. 
 + 
 +**Blade teeth dull rapidly:​** 
 +  * Insufficient feed pressure. 
 +  * Blade pitch too fine. 
 +  * Guide inserts snagging set of teeth. 
 +  * Speed too fast. 
 + 
 +**Teeth tron from blade:** 
 +  * Excessive feed pressure. 
 +  * Gullets of teeth loading. 
 +  * Pitch of teeth too coarse. 
 +  * Blade speed too fast 
 + 
 +**Blade developing twist:** 
 +  * Excessive feed pressure. 
 +  * Guide inserts snagging blade. 
 +  * Blade too wide for radius of cut. 
 +  * Excessive blade tension. 
 +  * Blade not tracking correctly. 
 +  * Loss of set to one side of saw teeth. 
 + 
 +**Blade vibrates in cut:** 
 +  * Workpiece not properly seated or securely held. 
 +  * Blade speed too fast, and/or blade pitch too coarse. 
 +  * Insufficient blade tension. 
 +===== Trainers & Maintainers ===== 
 + 
 +The following members are authorised to provide bandsaw training: 
 + 
 +  * Cameron Sharp (cazagen)  
 +  * Alfie Pates (alfie)  
 +  * Mike Walters (miek) ​
  
 If something is up with the bandsaw please contact one of the following people: If something is up with the bandsaw please contact one of the following people:
   * Cameron Sharp (cazagen)   * Cameron Sharp (cazagen)
   * Mike Walters (miek)   * Mike Walters (miek)
startrite_bandsaw.1551547644.txt.gz · Last modified: 2019-03-02 17:27 by mike