Really good work Mark. As long as you use a material for the pins that is very hard, it should be ok. An occasional bent pin can be replaced fairly easily by the looks of things. For my M113 tracks I used 4mm high-tensile cap screws.
The guide teeth are not long enough IMHO, granted it's a prototype. Ben -----Original Message----- From: rctankcombat@googlegroups.com [mailto:rctankcom...@googlegroups.com] On Behalf Of Mark_123522 Sent: Monday, 14 June 2010 3:51 AM To: R/C Tank Combat Subject: [TANKS] Half Metal Tracks _ Pictures of the Prototype All: Here are pictures of my metal track (Generally patterened from M60 track). I was looking to use aluminum for the tread segments, but for this prototype, I used PVC plastic. The segments are .25 X .75 long X 1.5 wide. It looks like the drive lug spacing is too close, so I'll increase the tread length from .75 to 1 inch. The pins for this prototype are brass, but stainless steel will be used later. The pins are .125 inch, and will be held in place with tiny, .125" retaining clips ($6 per 100) and a groove on each end of the pin. The PVC is plenty strong, and rubber pads will glue well to PVC, also PVC is a good bearing material. The alternative is to use aluminum, and cut a slot to glue the rubber pad in. It looks like it will take about 1 hour per inch of track to build (I have all manual machine tools). It looks like it will cost about $.80 per inch of track. The track is guite flexable in two directions (forward flex and back flex), but very rigid in all other directions. Design drawing: http://i192.photobucket.com/albums/z65/mm123521/Track_Array4.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0933.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0935.jpg Very flexable: http://i192.photobucket.com/albums/z65/mm123521/HPIM0936.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0939.jpg http://i192.photobucket.com/albums/z65/mm123521/HPIM0938.jpg Mark -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to rctankcombat@googlegroups.com To unsubscribe, send email to rctankcombat-unsubscr...@googlegroups.com Visit the group at http://groups.google.com/group/rctankcombat
