A Guide to Sawing & Piercing

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There have been some brand-new advancements in frame design over the previous couple of years and it is now possible to buy advanced variations which create the stress in the saw blade for you. One such style is from a business called Knew Concepts who have a variety of lightweight aluminium frames which do not flex. Instead the stress is produced by means of a cam-lever mechanism within the blade clamp, which makes it possible for a quick release and positioning of the blade with the flick of a lever. These specific clamps can likewise be turned 45 degrees which assists in sawing into tough areas.

When buying your frame is whether you desire an adjustable or a fixed style, another decision you require to make. An adjustable frame enables you to change the size to accommodate damaged blades where as a set style will only take basic size blades as they are offered.

Saw frames: A jewellers saw frame is similar in style to a little fretsaw and is made of springy steel which holds the blade in position under tension. Blades are held in place by wing-nut clamps at either end of the saw which are tightened up by hand. The size of the saw is determined by the depth from the blade to the back of the frame and they range in size from 3 inch to 6 inch. A 3 inch frame is a great basic purpose size for small scale jobs, but the option is down to individual choice.

Most of us are familiar with the principle of sawing wood, numerous discover metal a little unstable at initially, which is why we have actually put together this guide. Our objective is to assist you with both tools and technique, which will, (in addition to some persistence and practice), start you off on the correct course to successful sawing every time.

Sawing

Saw blades: Blades for a jewellers piercing saw are sold in packages of 12, or by the gross (144) and come in a choice of grades which range from extremely coarse to incredibly great. The table below contains all the details you will need to select the correct blade for the metal in concern:

Saw blade Grade

Blade Thickness mm

Teeth per CM

Drill Size mm

Advised gauge Of metal mm

Saw blade Grade 8/0
0.17
30
0.3
Approximately 0.4

Saw blade Grade 4/0
0.22
26.5
0.5
0.5 to 0.6

Saw blade Grade 4
0.38
15
0.8
1.0 to 1.3

Saw blade Grade 2/0
0.26
22
0.55
0.6 to 0.8

You will not require to purchase every grade of saw blade; a basic choice of coarse, medium and fine need to be completely sufficient. However, ensure you purchase more of the medium grade (2/0 or 1/0) as these are what you will utilize most often.

Saw blade Grade 3/0
0.24
23.5
0.5
0.6 to 0.7

Saw blade Grade 2
0.34
17.5
0.7
0.9 to 1.1

Saw blade Grade 1
0.3
19
0.7
0.8 to 1.0

Saw blade Grade 6/0
0.18
32
0.4
0.35 to 0.5

Saw blade Grade 5/0
0.2
28
0.4
0.4 to 0.55

Saw blade Grade 1/0
0.28
20.5
0.6
0.6 to 0.95

Saw blade Grade 3
0.36
16
0.8
0.9 to 1.2

Installing a blade into a saw:

My saw blades keep breaking: Dont anguish this is perfectly regular and practise makes ideal. Check the tension of your blade for slackness and make sure you are utilizing the correct blade size/metal mix.

Piercing a gain access to hole for sawing:.

Repairing:.

Why Pierce? When you require access to a location which would otherwise be difficult or hard to reach e.g. the centre of a circle, piercing is needed. By drilling a little hole you supply access to the saw blade which can then be fed through and re-clamped into the frame, permitting you to saw from the inside out, instead of the outdoors in.

Rotary Hand Drill: Rotary hand drills have the motor consisted of within the hand piece and either run of the power supply or can be charged up to use cordless. They have the very same multi-purpose performance of a pendant drill and can be utilized with a vast array of accessories. Rotary hand drills can be utilized in conjunction with a drill stand to make sure vertical drilling.

My arm is hurting: Check your seating position is correct and attempt to unwind. Do not be tempted to require the saw, you are merely assisting it so let the blade will do the work.

Sawing curves: Curves require much shorter strokes and require an upright sawing position. You need to gently turn the saw along the curve with each cut, taking care not to force the blade.

Seat yourself at the bench and hold the work in position on the bench peg, holding the saw in your opposite hand.
Your saw needs to be held in a vertical position with the blade dealing with forward, and you should be seated so that your working area is around mid-chest height.
Position the blade on the exterior of your significant line and gently draw the blade down. Eliminate the saw and repeat a number of times until you have a small indent to guide the blade.
Now begin to carefully move the saw up and down keeping in mind that the blade cuts on the downward motion and just re-positions on the upward. If you are having trouble getting the blade to bite you can use some beeswax which is sold in blocks, to assist ease the motion.
Saw on the exterior of your marked line and try to preserve a gentle and consistent action.
As soon as the cutting is complete, undo the clamp at the top of the saw and pull the frame to remove it from the work, or just bring it back along the cutting line if that is possible.
Submit the rough edge to end up.

The drill is getting too hot: If the drill overheats you can cool it down using a small quantity of water or an oil based drilling coolant. Stopping working that, just stop and allow the tools to cool down.

Scriber: A scriber is a fine marking tool with a narrow and long idea. It is utilized to scribe styles onto metal and can be used to mark the positions for drilling.

Marking out and measuring: Before beginning to saw, your metal needs to be clearly significant and determined so you have a guide to work to. Lines can be scribed onto metal using a scriber or a set of dividers (which are comparable to a compass however with two points).

Sawing straight lines: Straight lines are best taken on with the saw slanted somewhat forward utilizing long, smooth strokes.

Troubleshooting:.

My drill isnt cutting: If the drill bit will not bite it might be due to the fact that it is blunt or that the metal you are utilizing is too difficult for that particular kind of drill. Some drills are tougher than others so inspect their viability prior to you buy.

My saw blades keep sticking: Apply some form of lubricant to relieve the sawing motion. Some jewellers utilize spittle, but you can also utilize beeswax. Simply run it along the blade and continue to saw.

The drill keeps moving and will not discover its position: Make sure you have marked the drilling position plainly with a tiny damage to direct the drill. Likewise make sure the drill is fitted correctly into the chuck, it might not be straight. Above all, ensure the drill itself is completely upright.

Piercing.

Centre punch: A centre punch is likewise a steel marker with a sharp point comparable to a scriber. It has a shallow pointer and is utilized in conjunction with a hammer to mark the position for subsequent drill holes. It is also possible to get automated centre punches which do not require a hammer and rather have a push button action.

Archimedian Hand Drill: This is a small spring filled drill, which works using a deal with at the top which is pressed down and pulled back as much as rotate the chuck at the tip. This needs both hands to utilize effectively.

Bench Mounted Pillar Drill: This is the ultimate drilling tool and is used for solely that purpose. A sturdy base is combined with a movable chuck mounted on a column, which is managed by a lever at the side. The base can facilitate a clamp to hold work securely helping to make sure an accurate outcome every time.

Tools for Piercing: There are several ways to drill a hole. You can use hand tools or mechanised tools; the principle is similar. The most essential thing to keep in mind when drilling a hole is to keep your drill bit upright and completely vertical. This is why all drilling tools have an adjustable chuck to grip the drill bit firmly, whilst keeping it totally vertical. Chucks are either totally adjustable to take all sizes of drill or interchangeable, meaning you will require to alternate to accommodate different drill bits.

Sit at your bench with your saw frame supported in between your chest and the edge of the bench or the V of your bench peg. The wood manage should face you and the blade clamps ought to be at the top of the frame.
Position your blade with the teeth at the top, pointing towards you and clamp the end outermost away into your frame utilizing the wing-nut. (Do not be tempted to tighten up with pliers as this weakens the screw thread).
Push gently versus the manage with your chest which will trigger the frame to flex, and tighten the 2nd wing-nut to secure the blade.
Release the frame and inspect the stress of the blade by plucking it. You are trying to find an unique ping to show the tension is correct. If you dont hear the ping merely reverse and duplicate the procedure again until its. (Failure to protect your blade with the ideal stress will lead to it breaking as quickly as you start to saw).

Drill bits: The most common kind of drill bits are twist drills which cut when turned in a clockwise direction. They are made from a variety of toughened products and variety in size from 0.3 mm upwards. Drills can end up being blunt remarkably rapidly so its suggested to purchase multiples of the sizes you use most often.

Saw frames: A jewellers saw frame is comparable in design to a small fretsaw and is made of springy steel which holds the blade in position under tension. There have been some new advancements in frame design over the previous couple of years and it is now possible to purchase more innovative variations which develop the tension in the saw blade for you. Rather the stress is produced via a cam-lever mechanism within the blade clamp, which allows a fast release and positioning of the blade with the flick of a lever. Saw blades: Blades for a jewellers piercing saw are sold in bundles of 12, or by the gross (144) and come in a choice of grades which range from very coarse to incredibly fine. By drilling a little hole you supply access to the saw blade which can then be fed through and re-clamped into the frame, permitting you to saw from the within out, rather than the outside in.

Pendant Drill: A pendant motor is a multi-purpose, mechanised tool which has a suspended motor and a versatile shaft connected to a hand piece, which contains the chuck. It is managed by a foot pedal and can be used with a substantial series of various accessories including drill bits.

My drills keep breaking: A blunt drill bit will break more quickly, as we intuitively apply more pressure if it does not appear to be cutting. They are likewise prone to breakages if not protected properly in the chuck.

Bow drill: A bow drill is a conventional hand drill which can be used with one hand. It has a basic twisting mechanism which is produced with a pull/push movement utilizing a wood baton and a piece of string. It is simple to control and is ideal for a beginner.

Conserve this for later on.

Beginning to Saw:.

As soon as your design is scribed onto the metal, determine a position within the waste product to drill a suitable hole.
Mark the position with a scriber or centre punch.
Select the proper drill size to refer the saw blade you intend to utilize, (please refer to chart) and insert into the chuck making sure it is gripped tightly.
Drill the hole. Start gradually ensuring the drill bit has discovered its position. When in position increase the speed and lower with a gentle however continuous pressure until all the way through..
Now, reverse your saw blade at the clamp nearest the deal with and thread the blade through the hole from the top. When through, re-clamp your blade making sure the tension is appropriate.
Saw out your shape.
As soon as sawing is total, get rid of the saw by un-clamping the blade nearest the handle once again.
Submit to end up.

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