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startrite_bandsaw [2019-03-02 17:27] – Remove old costs section mikestartrite_bandsaw [2022-06-18 21:18] (current) – [Log] New blade mike
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   * Drive belt: 50" external / 48" internal A-section V-belt   * Drive belt: 50" external / 48" internal A-section V-belt
  
 +Laser cuttable design for the acrylic piece that goes in the centre of the table, 8-9mm thick: {{ :startrite_bandsaw_cutout.dxf | startrite_bandsaw_cutout.dxf }}
 ===== 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.
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 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)  
 +  * 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)
 +===== Log =====
 +
 +//Started 09/06/2019 - maintenance prior to this may not be logged. //
 +
 +  * **01/01/1970** Template log entry. Copy this below. //Author//
 +  * **09/06/2019** Found tool in an unusable state. Blade tracking was completely out, blade falling off back of wheels. Guide bearings were also mis-adjusted - blade was being forced into them and making a very angry noise when pulled through by hand. Spent 45 minutes re-adjusting the blade tracking to get the blade running true again, re-adjusted blade tension and guide bearings. //Alfie// 
 +  * **07/12/2019** Found the blade blunt. Cameron replaced it with a new one. //Vytas//
 +  * **18/06/2022** Fitted a new blade as the old one was blunt. //Mike//
startrite_bandsaw.1551547644.txt.gz · Last modified: 2019-03-02 17:27 by mike

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