Guess What I did it!!!!!!! Made a perfect Octagon and hopefully another as this was just the test case. I want to thank each and every one of you who helped. On the forum 1-how do you make an octagon - 2-making octagon cont . As I couldn’t have done it without you all. My problem mainly is my lack of Maths skills to put it mildly – they suck!!! Angles, triangles, numbers are all in the same boat in my way of thinking. Difficult, hard, impossible!
Anyway as I wanted to do a perfect octagon I thought I would try to do it with the help of numbers-in the way of rulers, protractors, gauges. Well they all failed – or should I say I failed at trying to use them.
Me and numbers (except money) is like oil and water. A couple of times I was close but not quite then I would just confuse myself by just looking at the numbers, now which way again up or down. Inevitably I would get it wrong.
Initially I started out trying to calculate the angle by getting what I thought was 22.5 and cutting out a paper or cardboard version so I could then make a cardboard cutout of each octagonal piece. Well this was just annoying. (But that was only decided after trying to fit it all together for 3-4 hours.) So another day another way-I was sort of close so I decided to cut out 3mm MDF version of the pieces. Now being so small I didn’t want to use a mitre saw either power or hand cutting. So I used the bandsaw and tried from there. But I found that each length was different, only slightly but great enough to worry as it was stated in the forum a few times They all had to be the same length. Another Worry – just how was I going to do that.
Another day and another plead for help from LJers. Mike(Stefang) showed me in the forum a jig that was made for the disc sander to attain the correct length for each piece. Well what could I loose. So I made a rough version of that. Surprisingly it works a treat! At least something was going right!! Anyway there still was the problem of trying to get that perfect angle so I could use the jig to.
Another day passed and I decided fresh in the mind to just THROW ALL NUMBER RELATED OBJECTS AWAY, like rulers and protractors and head to the incorrect mitre gauge that was on the disc sander. I knew it was out, but how far, I got a 45 degree triangle and saw just how far out.
Triangle to reuse for attaining correct angle for next time.
Your thinking that was the end. Well in fact it took another few adjustments before I found the right one. Mainly because I was using a slick on my new jig that was not square!! (WHAT AN IDIOT !!) So I had to redo all that I had done after thinking that I had finally done it.
my version of Mikes jig and the now ‘straight’ edge
All pieces exacly the same!!
Well after sanding slightly checking, adjusting several times I was very pleased but not quite believing that I had actually made an octagon.
OMG!!! I did it. Now the hard part, making another!! But that’s another story!!
-- Theresa, https://sites.google.com/site/tmj65treasure/