Carlson Skunk Works

February 16th, 2007

AMF-14H Maranda SN:1026 Construction Log

Posted by Roger in AMF 14H Maranda SN1026, news

We have gusset!!! At this time just one, but that means the next step of this project is under way.

Last night I cut the remainder of the spruce pieces for the ribs. My sockpile of parts looks like this:
Rib parts

And another view:
Another view of the parts

Next I moved on to my scarfing sander. Here is the vacuum cleaner that I am going to pull the motor out of:
Vacuum before modifications

Here is the vacuum after I freed the motor from it:
Vacuum after modification

Here are the parts that I will keep and build the scarfing sander out of:
Scarfing Sander Parts

The only issue that I ran into was that when I tried to take the fan off of the motor I didn’t see that the nut used left hand threads and stripped the nut. Now I will have to work a bit harder to get the fan assembly off of the motor. I didn’t have the time or inclination to work on this issue last night, so I proceeded on to cutting gussets.

Cutting gussets should be a fairly easy issue, but I think I will need another sheet of plywood to finish the ribs. I will be able to tell more after I cut a few more gussets. I started with the gussets for the nose of the ribs. I used a spray adhesive to glue a photo copy of the rib nose to a piece of tag board, then cut a pattern from that. Then I cut a strip of plywood 75mm wide. I traced my pattern onto the plywood and nested the pieces to make the best use of the plywood. I was able to get about 24 rib nose gussets from one strip of plywood.

I am using a utility knife to cut the plywood. After all the plywood is only 1mm thick. It takes a couple of passes foir the cut to make it all the way through, but the cut is clean and there is no waste in the form of sawdust. It is a bit tricky to cut the curves on the back of the nose gussets. Making several passes with the knife and being careful seems to do the trick. I was careful to allow a bit extra around the nose of the gussets to ensure that they will cover all of the area that they are designed to cover.

Next week I will be out of town, so I don’t know if I will be able to make much progress if any. I am toying with the idea of taking the plywood with me. If I cut the strips ahead of time and take them with me I shouldn’t draw too much attention bringing it into the hotel 😉

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