Sharpeners for knives

Any sharpening of the knife serves one purpose - to give the blade sharpness in order to work with the blade was of high quality. To sharpen the instrument, of course, it is possible and in a manual old-fashioned way, but it is much nicer and more convenient to use a sharpener for knives. To make the tool for sharpening under force to each house master. To do this, you just need to understand the principle of the device and correctly build the parts.

to the contents ↑

Hand grinder for the knife

The configuration of the home-made sharpener for knives, as well as its parts, can be different. But as a sample it is better to take a sharpener for blades, which have the following main elements:

• Bar with handle.
• A device for clamping a stone for sharpening or blanking with sandpaper.
• Base with clamps for knives, clamp, as well as a knot that adjusts the angle of sharpening, and the stand.

to the contents ↑

How to make a knife sharpener for your knives?

To make a grindstone with your own hands is not as difficult as it might seem at first glance. To do this, you just need to prepare the parts and connect them into one design. You can do this using the following algorithm.

Step 1. Sawing the base

As a base, you can use a piece of tectolite plate, 400 * 60 * 25 mm in size, although a regular board or MDF slab that has fallen down in the basement will be suitable.

Step 2. Preparing the

rack Drill one hole under the stand in the base. Later in this hole, the threaded stud M8 will be wound and about 30-35 cm long. Insert the pin into the drilled hole.

Step 3. Master the hinge for the stud

1. Connect the two plumbing couplings with a nut and washer.
2. Wear the manufactured device, which plays the role of the hinge, on the stud in the bottom of the sharpener.
3. Secure the device with nuts and washers.

When using a homemade carousel by moving this joint, we will adjust the angle of sharpening.

Step 4. We make grinding stones

To create grinding stones you will need:

• Wooden bar( length 2 meters, width - 4 cm, thickness - 2 cm).
• M12 hairpin length 80 cm.
• Sandpaper with a grain size of 220, 360, 600, 1000, 1500 grit.
• Pipe made of metal-plastic.

Proceed as follows:

1. Prepare blocks of about 25 cm from a wooden bar. For each block, glue a strip of sandpaper using PVA glue. In the absence of such a pencil glue will also suit.

Important! On the back of the bar, sign which sandpaper you glued to not get confused during use.

1. From the same bar, carry the clips for the bars with a step( 2 cm) for the grindstone and a hole for the M12 stud.
2. Put the finished grindstone and the clamps on the M12 stud.
3. Clamp the structure with nuts and washers.
4. To a beam with a grinding stone traveled in the hinge, put a metaloplastic pipe on it and also tighten the nuts.

Step 4. Making the clamping mechanism for the

knife To ensure that the blade is securely attached to the knife sharpener when grinding, it is necessary to assemble the clamping mechanism. Use two steel plates for this purpose.

At the base( on the opposite side of the inserted stud), drill 2 holes under the M6 ​​clamping bolts to secure the knife locking device.

Important! The blade bracket can be made from any suitable metal plate with holes that are sufficiently rigid so as not to bend when tightening the bolts.

Do not tighten the bolts much, as the blade in this tack will be held securely. Due to the slits in the plates and the twisting force, adjust the clamping of the wide or narrow blade.

Important! Additional tips will help you make the knife sharpener with your own hands more convenient and functional:

• You can paste rubber feet so that during sharpening the sharpener and knife will not leave anywhere.
• In order to fix the device to the table, it is possible to use a clamp, curved from a thick sturdy plate. Drill in the plate 3 holes for fixing to the base of the sharpener, as well as one hole under the clamp bolt M6.

to the table of contents ↑

How the made sharpener works:

1. Make a homemade sharpener and fasten it to the table( using a clamp).
2. Use a bolt and a plate to secure the blade.
3. Insert the free end of the rod into the guide ring on the stand.
4. Put the desired template on the blade of the knife, and from above attach the selected grindstone( a bar with nazhdachkoy).
5. Adjust the angle of the grindstone by lifting or lowering the unit, with guide rings, on the stand.
6. After selecting the tilt, fix the ring with the upper nut.
7. The movement of the bar when sharpening the blade should be smooth, away from itself, with the shift of the grindstone away from the base of the blade to the point.

Important! The sharpening angles of the cutting edge of the blade should be:

• for soft products - 15-20 °;
• for kitchen appliances - 20-25 °;
• for universal blades( for outdoor recreation) - 25-30 °;
• for cutting tools - more than 45 °.

Manual knife sharpening is more preferable than automatic knife sharpening, since after such processing the cutting edge is less prone to wear. We hope that the hand-made grindstone for knives will last you a long time, save money for the purchase of the device and will do its job well.