Belt sander tip and trick

Today post  going to be short but, I feel oblige to my devoted followers (I wander where are they and if it say something about my blog?).

When I started to work on my newly build belt sander I order from a laser cutting company, some blank blades. Some was made of O1 still and some were plane low carbon steel. I intended to use the plane steel for practicing on the sander before I go to use the real knives O1 steel.

That arrangement work well, but then I realised that due to problematic craftsmanship (later discover as just wrong table rest adjustment) I have got slight deferent knife bevel geometry on both sides, i.e. left and right side wasn’t symmetrically shaped.

After adjusting the table rest the result was better but not as good as I wanted. I then realised that I holding the blade in deferent position, between left side and right side.

To remedy that, I needed to explore my action on the sander and lots of practice. To do that I use the plane steel blanks. Unfortunately they run quickly. That was a problem. To order new ones will take time and money. So I decided to… and here is the tip and trick, to cut a lots of wooden blanks, paint them and use them as practice dummies.

As I do more than one knife model, I cut few deferent knife profiles to resembles my knives, and then paint them. Obviously it is not important to give the blanks a proper bevel nor the thickness of the blades is important. Belt sander tip and trick

And here some of the used ones. Belt sander tip and trick

As a tip bonus I will say that while I was practicing, I come up with a solution to a problem that I encounter when I try to shape the bevel of some of my models.

You can see that the knife cutting edge starting away from the beginning of the knife bevel. Also some time you want  the beginning of the bevel to align with the starting point of the cutting edge, as in the second photo.

Handmade knifeHandnmade knife

So my trick is in both cases, to leave some of the knife profile unfinished. Belt sander tip and trick

Form the bevel and then finish grinding the blade profile. See samples 1 and 6 in the photo above, above, above.

That all for now. I hope you enjoyed it

Ronen

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How to build KMG type belt sander

KMG 2”x72” belt sander for knife making. Construction  Instruction for beginner.  Part 6.

 Building the motor base and attaching it to  the sander.

I saw the design for the base in one of the British knives forums. I can’t remember the name of the person who wrote the article. If someone do, please let me  know and i will gladly give him his due credit.

This time it is not that important to cut it very precise, but make sure that the dimensions of the cutting will allow you to mount the motor.

Begin by drill and thread all the necessary.

Then all you have to do is to weld parts (e) on top of part (c), then part (b) to part (c).

belt sanderBelt sander Belt sander

My best weld so far. Pity is through word  the end of the construction.Belt sander

Now, weld part (d) to part (a).

Assemble everything as in the plan and the photos.

Belt sander Belt sander

and you done.

Belt sander             Belt sander You don’t have to worry about how to tension the belt, as the weight of the motor will look after that.

As you can see from the images I had to mount it on top of piece  of wood. So or do better design or get piece of wood.

And finally, my pride and joy seat proudly on newly built work bench. All there is to do is to mount the electric box on the wall.

Belt sander

That it, but….. I will post another post in regards of The Belt sander. It’s going to be about commissioning the sander and some tips & tricks after few weeks of using it.

 

 

 

 

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How to build KMG type belt sander

KMG 2”x72” belt sander for knife making. Construction  Instruction for beginner.  Part 5.

Decoration.

I decided to go wild. Hopefully by now my friends know me and won’t lift eyebrow, and if so the tough.

So, first, disassemble all the parts that  needs to be painted.

You will have to clean the metal parts firs. The best way is send blast, but for me it wasn’t viable option, so i thoroughly  wiped it with white spirit. I am sure there are better way but you will have to do the research for it. i then  sprayed paint it in primer paint.

Now the decoration is going to be skull silhouette (it was around Halloween at the time)  in black on top of yellow background paint. how to build belt sander

So I made stencils by using me boy book cover material leftover. Word of warning it is not good stuff for stencilling purposes.

Any way i found skull silhouettes on the internet, cut some A4 size sheets out of the book cover and print them on the paper side of the sheets.how to build belt sander

You will have to cut out the black parts of the prints. Use the sharpest and most pointy knife you can find.how to build belt sander

By now the primer paint as dried, so go about to paint the black colour, try and use the same paint manufacture for that.

When the paint is dry, peel the paper backing out of the stencils and stick it on the blacked belt sander and make sure it is properly stuck.  Now spray paint it with yellow paint (use the same paint manufacture). You can peel the  stencils when the paint is dry.

As you can see my result is not the best. It is dew bad paint and improper stencils material.

Assemble all the parts. I am sorry, you will have to work out which bolt go to were, but it shouldn’t be a big problem.

Once all is in the right place, step aside and ad stencils admire your work. If everything is okay it should look like that.how to build belt sanderhow to build belt sander

 

 

 

 

 

Or better.

We nearly at the end. In the next and last post about’ How to build KMG type belt sander’ I will show you how I attaching the motor to the sander.

 

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How to build KMG type belt sander

KMG 2”x72” belt sander for knife making. Construction  Instruction for beginner.  Part 4.

Construction of the platen.

First thing is to drill and thread parts (J and H). It is bit tricky, as the threads for the bolts connecting parts (J and H) need to be very precise. No much point for me to tell you how i do it (i don’t think it was good method). However try to pre mark the location of the holes by asking the laser specialist to do it. then try to clump the part together and drill both at the same time. And pay attention when you do the threads.  Don’t forget to do the countersink holes as you want it to look nice.

How to build belt sander

As it large enough, you can ask the laser man to cut the hols for housing the platen rollers.

Again it is very important to attached the rollers parallel to each other.

Now start with the platen plate parts (I and K).

You need to do the slots for the bolt on parts (k) and make sure it’s okay by measuring  it against flat piece holding to the rollers.

Hoe to build belt sander

Mark the location on plate (I) and weld. Make sure it is straight.How to build belt sander

Yeah well, as i say, i am not a welder.

Two more posts to go. In the next one i will talk about the decoration.

 

 

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How to build KMG type belt sander

KMG 2”x72” belt sander for knife making. Construction Instruction for beginner. Part 3.

Construction of the tracking hinge.

Letters for various components refer for the marking on the drawings / photos. See previous posts.

Begin by inserting the axel (O) to the brackets (P). Don’t fit it too tight. Then weld part (S) to the sleeve (U).  Now clump it to bracket base (Q). Note the chamfered hedge for better welding.

How to build belt sander

Then  weld part (R) to the tracking hinge arm (Part N), again drill and thread it before welding. And we done.

The spring.

How to build belt sander

I found it tricky. You have the spring but i couldn’t find a proprietary  part to attached it to the main body and the  tracking hinge arm. So i had to improvised.

I  insert two wooden plugs into both sides of the spring. I form the plugs in a way to allow me to insert the spring platform into them.

Now secure M8 bolt into the pre drill and thread on top of the main body (Part A) and into part (R).

Fix the spring platforms to the bottom bolt and the one in part (R). Now you can slides the spring (with the wooden plugs in it) on to the bolts. Finally secure it with nuts.

How to build belt sander

And voila!!!

How to build belt sander

In the next post we will do the platen.

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