Wooden chair in a home workshop: making a chair back. Attachment for a router. Part 3
In this article, we will focus on making a curved back using a router attachment.
According to the project, the task is to make such details.
If you have a band saw, then making such a shape is not difficult.
I suggest looking at an alternative way of making such parts. To do this, you can use a simple router tool.
The frame is made of 50 mm wide slats. In the side parts, two arcs with a radius of 450 mm were cut with an electric jigsaw.
The resulting cuttings went to the top of the fixture.
On them, symmetrically from the center, two plywood parts are screwed. In the center, there is a gap for the cutter, and the bars at the edges limit the area of the cutter.
The device works like a swing. The milling cutter moves in an arc over the part and selects an arc of the required depth in several passes. The part is installed in the frame of the fixture and for symmetry is positioned from the center: the center of the part is aligned with the middle of the arc of the fixture. (Scroll through the gallery)
When setting the overhang of the cutter for the zero point, you need to take the point when the cutter touches the part with the horizontal position of the cutter - the lowest point of the swing. The milling depth will depend on the length of the cutter, the depth of the cutter and the height of the attachment frame. To obtain a large milling depth, you need to take groove cutters with a long cutting part.
On a similar device, you can make radius selections in the seats. The frame is larger and can be rotated around the fixed part to get the sample as if it were part of the ball.
When making such a backrest, you need to take into account the sequence of manufacturing parts. Since I planned to assemble the back with dowels, I had to leave at least one plane for accurate marking and drilling for the dowels.
Therefore, after taking out the inner radius, I marked and drilled the holes for the dowels. (Scroll through the gallery)
I drilled for the dowels using a homemade filler router. I talked about him earlier on the channel.
Drawings and examples of using this router can be find the link.
In the upper part of the back, I made an outer arc before drilling for the dowels. In this particular case, this is permissible, since the center of the part still remains flat and this allows you to accurately drill holes for the dowels.
I did the outer arc as follows: first, I cut the bend with a plane into a rough one, and then brought it to the desired shape by grinding.
I propose to look at the manufacture of parts of the back of the chair in video clip.
You can download the chair project link.
It is interesting
Last year, the channel had a series of posts on making a bathroom cabinet. Who is interested can see link.
And even earlier, there was a series of articles on making a durable, reliable stool. You can see here.
Thanks for reading. I would be glad to have your support in the form of a like and a subscription to the channel. And see other publications on the channel.
Alexander.
P.S. I also invite you to your site.