Draw out the back leg on the piece of lauan or hardboard to create a template.
Draw your piece on a scrap of ¼” lauan or hardboard. Cut it out with a jigsaw and smooth any rough edges with a sander. Check the fit of the template against any pieces already built. For example, if it is a back chair leg template, the chair should already be constructed to this point. Any adjustments that need to be made can be made to the template before cutting the actual lumber. Drill a hole in the template for hanging and label it for later use.
- To cut out your piece with a template:
Trace the template onto your piece of lumber and roughly cut out the shape making sure to stay outside of the lines. Attach the template to the piece with strong double-sided tape. Using a router and a flush trim bit, make sure you set the height of the bit so the guide will run along the edge of the template. Cut around the template. Depending on the length of your bit, you may have to make more than one pass around the template. In other words, if the piece you are cutting is 1½” deep and your bit is 1” deep, you will cut the piece around the template. Adjust the depth of the bit, then make another pass with the router. The guide bearing will not follow the template the second time but will follow the piece that has already been cut. Clear as mud? Here is a great demo on how to do this: http://www.diynetwork.com/how-to/how-to-use-router-templates-and-bearing-guides/index.html
Using a template will make your pieces more consistent and uniform, and you’ll have it in case you decide to build more than one!
To remove the adhesive, use a product like Un-du which will not harm the material you are using.
Place the template on the 1x4s for the back legs and cut out.