25th-Apr-19, 05:53 PM
Nice to build something a bit off the wall. 
I'm into bodies
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1st-May-19, 02:35 PM
Made a chassis to suit some Taylormade anglewinder gears I have sitting doing nothing
( I await the jeers about collecting gears)
All my Cunninghams have been stripped of chassis as they have been repurposed so at least I can play with one of them now.
Simple rattle chassis and Parma Womp motor. Goes well.
( I await the jeers about collecting gears
) All my Cunninghams have been stripped of chassis as they have been repurposed so at least I can play with one of them now.
Simple rattle chassis and Parma Womp motor. Goes well.
4th-May-19, 02:02 PM
I'm also into chassis, particularly Dynamic. Got a new 26D from Germany today and it was straight into a frame with some Taylormade gears. If I can figure a way of stopping it doing wheelies, it should be quite quick! I've replaced all four bearings with ball races as the old Dynamic ones were a bit worn. When it's not leaping out of the slot, it is quick in a straight line. I reckon some weight will do it, brass pans coming up!
7th-May-19, 11:57 AM
Sadly, I just couldn't get it to stop leaping about. No play anywhere but it just seems that the torque was twisting it enough to deslot!
Back the the favourite sidewinder frame them but.......the only one I have left is the 'orrible type with spring suspension that was a major mistake by Dynamic. They just don't handle. However, it's easy enough to fix them in place. I use Loctite 638 as a matter of course if I don't want something to move.
However, the frames are clearly designed for an end bell drive motor as there is a large offset one side. And what motor do I have?
If it's fitted straight in, the axle bearing housing stops the motor going far enough back to mesh with anything usable gear wise unless you like the thing dragging on the ground or even lifting the tyre off it.
Some adjustment needed therefore. Quite a bit off the bearing housing and a little off the motor and it sits right back against the axle which should allow for a 40 tooth to mesh nicely with some adjustment forward if necessary. The bearing still has the whole length of hole but some of it is a bit thin!!
As the motor is the wrong way round, it was also necessary to drill some new mounting holes. Probably OK but anything will weaken the structure to a greater or lesser degree I guess so I've added a bit of steel wire just as insurance - just stuck on with Araldite.
Meshes with 50 tooth but my track wouldn't appreciate the extra groove!
Now back to the axle
Bit of reinforcement
Back the the favourite sidewinder frame them but.......the only one I have left is the 'orrible type with spring suspension that was a major mistake by Dynamic. They just don't handle. However, it's easy enough to fix them in place. I use Loctite 638 as a matter of course if I don't want something to move.
However, the frames are clearly designed for an end bell drive motor as there is a large offset one side. And what motor do I have?
If it's fitted straight in, the axle bearing housing stops the motor going far enough back to mesh with anything usable gear wise unless you like the thing dragging on the ground or even lifting the tyre off it.
Some adjustment needed therefore. Quite a bit off the bearing housing and a little off the motor and it sits right back against the axle which should allow for a 40 tooth to mesh nicely with some adjustment forward if necessary. The bearing still has the whole length of hole but some of it is a bit thin!!
As the motor is the wrong way round, it was also necessary to drill some new mounting holes. Probably OK but anything will weaken the structure to a greater or lesser degree I guess so I've added a bit of steel wire just as insurance - just stuck on with Araldite.
Meshes with 50 tooth but my track wouldn't appreciate the extra groove!
Now back to the axle
Bit of reinforcement
8th-May-19, 11:33 AM
Gordon - Brad Blohm - sells an upgrade kit for the 26D. Arco's and better endbell (failing of 26d's is that endbells melt).
With others bringing the hyper scarce 270s - you will need a bit more ooomph.
With others bringing the hyper scarce 270s - you will need a bit more ooomph.
8th-May-19, 11:54 AM
One reason to stick to the standard Mabuchi is that they seem to hang on OK. I have yet to melt an end bell but I have blown a few armatures. I got some of Brad's magnets last year.
I'm not sure Bordo is really a power track anyway. Balance and grip seem more important to me. If you look at the video of the first heat at Bordo in January, you can see, although the car was quick in a straight line, its strength was rock solid grip and handling.
This particular 26D seems to have the ideal balance speed/torque wise and it has good brakes. Once the gear ratio is reduced a bit numerically, I reckon it should be fine.
Still not sure which car I will be using though. The black truck is the likely one and that has a Champion armature in it and is a bit lively. The chassis is the one I used last year and was going well before I ran into the scene of accident.
This year though, it's more about the concours in theory. When it comes to it though, I strongly suspect I will just choose the quickest car. Racing is the name of the game after all
I'm not sure Bordo is really a power track anyway. Balance and grip seem more important to me. If you look at the video of the first heat at Bordo in January, you can see, although the car was quick in a straight line, its strength was rock solid grip and handling.
This particular 26D seems to have the ideal balance speed/torque wise and it has good brakes. Once the gear ratio is reduced a bit numerically, I reckon it should be fine.
Still not sure which car I will be using though. The black truck is the likely one and that has a Champion armature in it and is a bit lively. The chassis is the one I used last year and was going well before I ran into the scene of accident.
This year though, it's more about the concours in theory. When it comes to it though, I strongly suspect I will just choose the quickest car. Racing is the name of the game after all
10th-May-19, 06:50 AM
Minus one car as a choice for Bordo next month!
I've been playing about with rattle chassis of late and with Dynamic frames, it's dead easy to make them adjustable. Old Yeller was a bit tippy on the limit so I decided to increase the amount of rattle.
Put it on the track to test and the motor just stuttered and wouldn't run properly. Being a lazy person, I couldn't be bothered to go and pick it up and just ran it round to the driving position.....or at least, attempted to. Half way down the main straight, the motor suddenly cleared and Old Yeller ended up hitting the viewing platform at the end with what, even for my non working lugholes, was a very loud thump. The poor guy with the binoculars ended up on the floor about 5 feet away.
I rather suspected that Old Yeller would be written off but, as ever, I am really impressed with the strength of superglue impregnated balsa wood. I would have expected damage to plastic or even a blob at that speed, hitting straight into a wooden board (stupid boy had removed the foam to make packing for the car box for Bordo
). It's no longer going to win any concours event but the damage is repairable when I have the inclination. Just quickly superglued it up. I have plenty of paint left and two sets of the decals so no problem there.
Down to three choices for the racing then!
I've been playing about with rattle chassis of late and with Dynamic frames, it's dead easy to make them adjustable. Old Yeller was a bit tippy on the limit so I decided to increase the amount of rattle.
Put it on the track to test and the motor just stuttered and wouldn't run properly. Being a lazy person, I couldn't be bothered to go and pick it up and just ran it round to the driving position.....or at least, attempted to. Half way down the main straight, the motor suddenly cleared and Old Yeller ended up hitting the viewing platform at the end with what, even for my non working lugholes, was a very loud thump. The poor guy with the binoculars ended up on the floor about 5 feet away.
I rather suspected that Old Yeller would be written off but, as ever, I am really impressed with the strength of superglue impregnated balsa wood. I would have expected damage to plastic or even a blob at that speed, hitting straight into a wooden board (stupid boy had removed the foam to make packing for the car box for Bordo
). It's no longer going to win any concours event but the damage is repairable when I have the inclination. Just quickly superglued it up. I have plenty of paint left and two sets of the decals so no problem there.Down to three choices for the racing then!
10th-May-19, 09:12 AM
16th-May-19, 01:13 PM
As I have two whole weeks to kill before Bordo, I thought I'd knock up another car to fit one of the Dynamic chassis. Quick one I'm pleased to say.
Giant yank tank. Dark blue with flames is the idea but I have to hand paint the flames as there isn't time to get the artwork and transfers done! Should be fun.
There is one view of it that reminds me of the Taxi from 5th Element. Better not paint it yellow!
Giant yank tank. Dark blue with flames is the idea but I have to hand paint the flames as there isn't time to get the artwork and transfers done! Should be fun.
There is one view of it that reminds me of the Taxi from 5th Element. Better not paint it yellow!
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