That is some really great work. I'm looking forward to seeing it on the move.
On Feb 23, 1:13 pm, George Mastoras <[email protected]> wrote: > Thanks guys, > > The scale is 1/10 but the tracks are 1/8 so hull is a bit tighter than it > should be. Its looking like it will be close to scale weight, tracks are to > scale weight and its no joy to carry. Starting to think of making a wheeled > dooverlaki to move it around with. > > The housings the rods go through are recycled battery powered drills. > Usually where the torsion rod comes out is where you would have a thread > which you screw the chuck onto. On the other side is where the planetary > gears attach but have now been joined with the road arms instead. > > The holes the threaded ends are poking through are tapped holes where > originally the balls would sit for the clutch, a bit of dremmeling was > needed internally so I could flip the bushes so it also protrudes through > the steel wall for strength. > > I just remove the gears and cut off the excess plastic, it also gives me a > wide bushing with 2 outer diameters and a 12mmshaft for the arm to attach to > which already has a pilot hole to drill for the rod on one side and a 19mm > shoulder on the other. > Really good solution for thin walls but might be hard to find a dozen old > drills, I have a good flea market nearby so 3 trips for me did it at 3 - 4 > dollars each. > > Torsion bars are made from spring steel, started with 4.5mm diameter but > stuffed up a few before I found out that was a custom size so half the > springs are 5mm and the other 4.5. > > George Mastoras > > On 24/2/09 5:39 AM, "Cold comfort" <[email protected]> wrote: > > > > > Great work! What are your torsion bars made of? > > Greg > > > On Feb 23, 1:45 am, George Mastoras <[email protected]> wrote: > >> Some progress at last. > >> Still a bit to do, some welding, drilling, tapping about a days worth > >> before > >> can attach a battery to test. > >> Should say this was a PITA and would not do it again, while putting this > >> thing together was always thinking what if this chain broke etc so had to > >> build in servicing and repair considerations. > > >> The gear ratio is 12:1 and the motors are about 320 watts at 12 volts but > >> will run it at 24volts also. > >> When moving this vehicle uses 56 ball bearings and 12 bushes for the arms > >> so > >> it should be efficient. > > >> Will be able to adjust tension on all the chains and be able to disassemble > >> the transmission hopefully fairly easy. > > >> When welding is finished will pull apart and paint, set the bearings and > >> take some photos when its in pieces. > > >> Even though its been a bit of a pain am looking forward to seeing this > >> move, > >> hopefully should be driving within 2 weeks or earlier, apart from > >> transmission only have 4 road wheels left to do. > > >> George Mastoras > > >> 3stage_1.jpg > >> 89KViewDownload > > >> 3stage_2.jpg > >> 88KViewDownload > > >> 3stage_3.jpg > >> 100KViewDownload > > >> 3stage_4.jpg > >> 80KViewDownload > > >> 3stage_5.jpg > >> 73KViewDownload > > --~--~---------~--~----~------------~-------~--~----~ You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat -~----------~----~----~----~------~----~------~--~---
