Tools/bandsaw/induction: Difference between revisions
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* Some interlocks in the door frame prevent the machine from starting when the doors are open. Therefore, when checking and adjusting the saw setup, it is sensible to begin by opening the doors, as this provides some additional security that the machine won’t start while you are setting it up. |
* Some interlocks in the door frame prevent the machine from starting when the doors are open. Therefore, when checking and adjusting the saw setup, it is sensible to begin by opening the doors, as this provides some additional security that the machine won’t start while you are setting it up. |
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* Check the motor is in the correct gear and the drive belt is on the right ratio pulley. |
* Check the motor is in the correct gear and the drive belt is on the right ratio pulley. |
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* Check that a suitable blade is fitted for the job you intend to undertake, ideally between 6 and 12 teeth on the blade should be in the work at any given time. Less than this is likely to result in a rough cut, more than this may result in clogging and excessive heat production |
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* Check that the blade is centered on the upper wheel. This is important, so that the blade runs true, and the set of the teeth don’t chew up the tires on the wheels, if it's not correctly centered then post on the list or ask someone with level-2 induction to adjust it. |
* Check that the blade is centered on the upper wheel. This is important, so that the blade runs true, and the set of the teeth don’t chew up the tires on the wheels, if it's not correctly centered then post on the list or ask someone with level-2 induction to adjust it. |
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* Check that the blade is appropriately tensioned, using either the guide inside the saw, or on the back of the saw. The numbers correspond to the blade depth in mm, which is measured from the back of the blade to the bottom of the gullet. Make sure you are looking at the appropriate side of the guide, for wood or metal as the scales are quite confusion. |
* Check that the blade is appropriately tensioned, using either the guide inside the saw, or on the back of the saw. The numbers correspond to the blade depth in mm, which is measured from the back of the blade to the bottom of the gullet. Make sure you are looking at the appropriate side of the guide, for wood or metal as the scales are quite confusion. |
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For the induction, I normally ask people to make cuts into 3 different kinds of material (MDF, softwood, and hardwood), so they gain a sense of the different feels. |
For the induction, I normally ask people to make cuts into 3 different kinds of material (MDF, softwood, and hardwood), so they gain a sense of the different feels. |
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Safeguarding |
Safeguarding |
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Ear defenders are optional, but sensible for extended use. |
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Safety glasses are sensible for many cuts, particularly those involving metal. |
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Breathing protection: The band saw should always be used in conjunction with its dust extractor, except when cutting metals. For extensive cutting, also put on the central dust extractor, and consider wearing a dust mask or respirator. |
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Where possible use push sticks and guide blocks to complete a cut. It is never necessary to get any part of your person within an inch of the blade. If you cannot see a way to achieve it, ask someone else for advice. |
Where possible use push sticks and guide blocks to complete a cut. It is never necessary to get any part of your person within an inch of the blade. If you cannot see a way to achieve it, ask someone else for advice. |
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The manual for the band saw which provides illustrations and more details about its setup and maintenance is here: http://content.jettools.com/assets/manuals/414418_man_EN.pdf |
The manual for the band saw which provides illustrations and more details about its setup and maintenance is here: http://content.jettools.com/assets/manuals/414418_man_EN.pdf |
Revision as of 17:45, 5 December 2018
Some of the tools at the Hackspace are potentially hazardous to use, for these tools members are required to have an induction before they can use them. Inductions provide the most basic information on how to safely and effectively use the simpler functions of the tools, we appreciate that some members may have professional experience on some of these tools and in this case please tell your induction provider and the induction may be very reduced and just cover any risks or procedures specific to rLab. Some tools have multiple levels of induction in order to cover more advanced uses of that tool without making the basic induction take too long, higher induction levels will introduce some of the more advanced features of the tools but as with all inductions are only intended to provide basic information on the capabilities of the tools and how to use them safely. Some members of rLab may be willing to offer more detailed tuition beyond basic induction level or offer guided practice sessions in exchange for beer money or assistance on their own projects.
For all tools you are only required to take level-1 induction before use, after that you may perform any task that you feel confident you can do safely, higher levels of induction may be useful to you in performing more advanced operations but are not required before doing tasks covered in them so long as you're confident of your ability to handle those tasks without risk to yourself, others, or the tool.
PLEASE NOTE : All induction providers are volunteers who are providing inductions to the best of their ability but are NOT qualified instructors. Inductions are provided on a best-effort basis but you and you alone are responsible for your safety while using the tools and for satisfying yourself that you can operate the tools safely. There are professional training courses available from various providers in Reading and the surrounding area if you feel they are appropriate for the level of work you intend to undertake. Reading these notes is NOT a substitute for an in-person induction.
Note for wiki editors : Please do not edit induction pages unless you are one of of the people that gives that induction
There are two levels of band saw induction, level 1 covers the basic setup and use of the machine for easier to process materials such as wood and composite materials; level 2 covers changing the band saw blade to facilitate a wider range of cuts, and metal cutting.
Band saw – level 1
This band saw is designed to be a wood and metal cutting band saw, and so can be used to machine a range of materials, including but not limited to softwoods, hardwoods, composite materials (such as plywood, MDF, OSB), some plastics, and a range of metals (not hardened).
Topic | Detailed contents | Rationale |
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Bandsaw's capabilities |
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What's this tool intended to do. |
Machine overview |
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Basics of how the bandsaw works |
Suitable clothing & PPE |
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Basic safety information |
Start-up/Shutdown |
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Stopping and starting! Turning off when unattended and making sure the area is clear |
Machine setup |
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Getting the Bandsaw set up properly |
Operation
Consider how you will complete the cut before you make it. If you need push sticks or guide blocks, have them to hand before you start the cut.
If the cut you intend to make is important, always do a test cut first to ensure you will get the results you want.
If cutting curves, remember that each blade can cut a curve of a minimum radius that is proportional to the depth of the blade – tighter curves require narrower blades. So consider whether the curves you intend to cut are practical on this blade – see the manual for more details. It is possible the laser cutter, or router table with a laser cut template, will give better results. Cutting curves too tight for a given blade will damage the blade and your work.
When making the cut, hold the work piece securely against the table, and guide work into the blade. Do not push too hard into the blade, as you will damage the blade and get a poor quality cut. Feed rate and pressure depends on the materials properties and dimensions, as well as the blades specification and condition and machine setup. So it needs to be felt – rather like changing gear in a car. However, it should never be hard work to push something through; if it is, stop the cut and consider if everything is set correctly.
Start the dust extractor, start the saw, make the cut, turn off the saw.
Leave the band saw cleaner then you found it – remembering to empty the waste trays behind and inside the machine. Check that the dust extractor isn’t overly full.
For the induction, I normally ask people to make cuts into 3 different kinds of material (MDF, softwood, and hardwood), so they gain a sense of the different feels.
Safeguarding
Where possible use push sticks and guide blocks to complete a cut. It is never necessary to get any part of your person within an inch of the blade. If you cannot see a way to achieve it, ask someone else for advice.
The manual for the band saw which provides illustrations and more details about its setup and maintenance is here: http://content.jettools.com/assets/manuals/414418_man_EN.pdf
The HSE has also produced a fairly comprehensive document detailing safe band saw use: http://www.hse.gov.uk/pubns/wis31.pdf