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The S7 for the armour has arrived. I got it from
www.toolanddie.com The first Xhilarating impaX had full front and rear corners only in 1/8" S7. |
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Xi 2.0 is designed to be as small as possible thus reducing the area requiring armour. This allowed me to increase thickness to 3/16" and have the
same thickness on all four sides. The Top and bottom will be 1/4" Lexan, up from the 3/16" on the original. |
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The Lexan panels of the chassis are used as templates for the cutting to shape of the S7. I used a Jigsaw to cut the parts to length.. |
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The position of the mounting holes were spotted through using the Lexan part as a guide and then drilled all the way though using the drill press. |
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All four sides cut and mounted on the chassis. The armour plates were cut later to the correct width using Billy Moons Bandsaw and are now with the
Heat Treaters. I decided on RC50 this time so that it will be a little less brittle than the RC 55 I hardened the old 1/8" plates. |
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The gearboxes have two bearing to support a cantilevered shaft but since the shaft had to go through 3/8" lexan a little extra support was added by
pressing in a bronze flanged bearing. |
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The three main bulkheads inside the chassis were cut using paper templates from 1/4" lexan.. |
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Originally I was going to have tabs on the ends of the bulkheads but I decided tpo do with these to improve the strength of the main front to back panels.
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The gearboxes are held together using four M3 35mm long screws. I replaced these with 40mm long ones to give more thread engagement. |
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I also modified the front bearing housings on the Mini-EVs so that my gear puller would fit properly allow easy removal of the gear from the motor as I
have several motors but only two gears! |
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Here you can see most of the Lexan panels assembled together. Even without the top and bottom panels fitted it is very rigid. 1/2" square Nut strip is
used in the four corners. This bigger strip will soon be added to the "Kitbots"
section as it will be usefull in building the bigger bots. |
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