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From time to time I will blog things that I think you will find useful. If you would like to see something here, then let me know and I will try to blog it .

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How do I fit my TCT blade?

Posted on December 17, 2012 at 6:10 AM

Most of you know how to do this, but sometimes I do get asked. I have even been called out to a customer who compained his sharpened blade was burning wood - he had fitted it the wrong way round ! He had never done it before and never will again, but now I never assume you know how to do this.

Be sure your machine is maintained in perfect condition and free from bearing play. The saw blade must run true on the man...

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Do I need a positive or negative rake angle?

Posted on December 17, 2012 at 5:55 AM

The rake or hook angle is the angle of lean on the front of the tooth. You can check it by placing a straight edge between opposite teeth and going through the centre of the blade. The steeper the hook angle the more aggressive the cut - i.e. it bites into the material more.

Woodcutting on portable and table saws typically requires a positive hook.

Negative hook gives resista...

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How long does my band need to be?

Posted on December 17, 2012 at 5:40 AM

I am amazed at how many customers do not know how long their band needs to be! Write it down somewhere please!!!

You can calculate the length of band needed with some simple measurements and maths. First adjust the wheels so they are close to the middle of their adjustment range. Measure the radius of the first wheel and multiply by 3.1416. Measure the radius of the second wheel and multiply by 3.1416. Measure the dist...

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Should I use a cutting fluid?

Posted on December 17, 2012 at 5:40 AM

The simple answer is yes if you are cutting metals. Use a good quality cutting fluid with an extreme pressure additive and it will prolong the life of your band. There are very few metals which do not require a cutting fluid and it has to be used with virtually all steel or steel alloy materials. It is generally cheaper to use water soluble fluids when cutting low carbon, low alloy or general materials. You will get improved results with neat cutting oil when cu...

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How do I recoil a band for storage?

Posted on December 17, 2012 at 5:35 AM

Ask me to show you next time I visit – it’s quite simple when you know

How do I know if I am using the correct feed rate?

Posted on December 17, 2012 at 5:30 AM

Whilst this is important for all types of material being cut, I will focus on metals because they seem to cause the most problems.

Chips are the pieces of material that have been cut away and can be the best clue to incorrect feed rates. If they are powdery, then increase the feed rate. If they have a blue colour (burnt) then decrease the feed rate. If they are free-curling and not discoloure...

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Does my new band really have to be 'run in'?

Posted on December 17, 2012 at 5:30 AM

Yes it does ! Most bands are accurately heat treated and have an extremely sharp cutting edge and if you want to keep it that way for the longest time possible then it needs running in. To do this reduce the feed pressure by about one third of normal for the first 500square cm of cutting. While doing this it is important not to reduce the band’s surface speed and to avoid vibration, shock or mechanical abuse. In otherwords, slow and s...

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How do I set up the guides on my verticle machine?

Posted on December 17, 2012 at 5:25 AM

First thing to do before you try to set up your guides is to get the band tension set properly. Then it is simple – just move the back and side guides so they just touch the band without deflecting it from the path it wants to follow naturally.

Why do my bands crack?

Posted on December 17, 2012 at 5:15 AM

This is often due to incorrect tension of the band. Correct tension is vital if you want to get the best life from a band. I cannot stress this enough. Generally speaking, the band should be tensioned so it does not slip while it is working. Your manufacture’s manual will give you detailed information about this.

From time to time, it may be necessary to make adjustments for band stretch. And something that most ...

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