Constructing the Mendel parts out of MDF (Part III)

(1)

Well, at this time i didn't have time to continue milling the parts of reprap. But i said in previous post i'll show you some of the tools i used to shape the parts.

At first i have to say that a rotary tool, which is a tool that speeds too fast (maximum 35.000 rpm) is a vital one.

disk for wood (2)

• With this rotary tool and a disk specially for wood (photo 2) i cut the parts.

special drill bits (3)

• For the inside shapes (circles especially) i used a bit that it's similar to common drill bits, but cuts the wood horizontally except from vertically (photo 3). 

bit for details (4)

• Then, with a sharp bit i did the details (photo 4).

sander (5)

• And with the sander smooth the edges (photo 5).

Also the holes made with a common drill, because the rotary one can hold only 3-4mm bits. Just make sure the holes are perfectly placed.


For example, the part shown at first picture made like this:

1. Cut the part from the rest of the MDF sheet.
2. Draw the layout of the part.
3. Mark the center of the holes.
4. Get the holes done.
5. Use the special drill bits for the inner circle and the biggest part of the 3 rectangular shapes.
6. Do the details with the other bit (4)
7. Use a rasp to smooth the inner circle and rectangular shapes.
8. Use sander for the rest.

The process is similar for most of the parts. But  it's better for some parts to mill them while not cut from the MDF sheet.