TF Makers

[forteh]

1 hour ago, Topsy said:

One part of me is most surprised that this worked out cheaper. Looks brilliant!

Only cheaper because I have a tame CNC operator at work and we're not massively busy in the factory at the moment

[Topsy]

Okay, that's a very nice thing to have. 

[J.KYDD]

Made a Pizza table/grill station for the Ooni oven & BBQ. 

[Tom Booth]

Ooni ovens are the best/worst thing to happen to my waist band

[aener]

I made a thing.

[monkeyseemonkeydo]

2 year bump! Been meaning to do this for ages but could never think of a good way to do it. Anyway, 50% scale motorbike model (spine for now) to start working on crazy aero bits that are popping up in MotoGP.

Design done in Solidworks. Most of the spine is waterjet cut with telescoping, IGUS bushed, forks and 3D printed wheels (done in two halves each) on our Creality CR-M4 large format printer. The bit at the top is a 6-component balance and beneath that is a little roll system to allow the model to be cranked over to +/- 60 degrees, in 5 degree increments, for cornering cases.

 

[forteh]

Does the steering angle not need to be taken into account?

[monkeyseemonkeydo]

19 hours ago, forteh said:

Does the steering angle not need to be taken into account?

In theory maybe but in practice I don't think it's critical and can be introduced later if necessary. At racing speeds I think the actual steering angles they achieve are quite small and for what we're looking at the lean angle is the critical thing. There's going to be a steep learning curve to work out what the hell the forces actually mean though as everything's on the piss relative to everything else and there needs to be a fair amount of translation and taring off offsets etc.

[forteh]

Then you have to factor in countersteering whilst backing it in?

[monkeyseemonkeydo]

1 hour ago, forteh said:

Then you have to factor in countersteering whilst backing it in?

Already thinking that we may need to model a rider hanging his leg out under braking... going to be an interesting project!

[forteh]

15 minutes ago, monkeyseemonkeydo said:

Already thinking that we may need to model a rider hanging his leg out under braking... going to be an interesting project!

Steel frame maquette with a stuffed textile covering, allow you to play with different body positions?  Screws up your spine design though, perhaps you could have a rolling chassis mounted forwards of the spine on a spar to give uninterrupted airflow over the bodywork/rider?

edit: you could 3D print the rider in limb sections and then incorporate that into the maquette

Edited Wednesday at 10:43 AM by forteh