[TC19] Nurses speed

[MangaNOID]

Hey everyone, I’ll give this a go but I really think I’ll run out of time as time is hard to come by right now, so this is quite a bit less technical than most of the current TC19 builds also.

looking for inspiration of what to build I came across this concept sketch which would very much fit in to some anime series which I’m a bit into.

Its got a futuristic vibe to it so that’s what I’m aiming for.

 

Link to original Here

It took me about 12 hours just to get this E motor, suspension, chain driven setup! Very frustrating but I needed it to fit in the space parameters for scale or I would not continue with the build. It should be pretty similar to Technic bikes @1:6 scale.

I also had to build it so the panels come off easily like a Vespa I suppose as this is somewhat what the bike is based on. 
 

I have put an fake Electric motor in there Which is probably oversized to a real one but didn’t want to make it too easy for myself.

Wheelbase is long!

 

 

E motor is white and red direct drive to wheels. Is this a copout to piston engine? Not sure how else to represent an E motor.

suspension travel with chain tensioner. The drive cog is not on the swing arm pivot point. It all just fits!

 

 

For any eagle eyed viewer Im using the narrower wheels for these tyres (London bus wheels?) which makes the tyre slightly narrower also so I can fit the chain in without rubbing.

Edited February 1, 2021 by MangaNOID
Trying to fix link

[Thirdwigg]

Fun idea. I makes me think of many of the Cargo bicycles I see around my house. I made an electric car using the same idea you used for your electric motor, so it looks good to me.

Looking forward to more progress. 

[Jurss]

Ineteresting motorbike. That colorscheme could really work.

[MangaNOID]

Thanks peeps!

I Had a couple hours over the last 2 mornings and built steering and forks. Trying to not use any cargo space for the function. 
 

Now one weird problem is that the handle bars turn slightly more than the forks but there is no gearing. I thought it may be slack in the uni joints but if I turn the forks the handlebars still turn more. I’ll live with it but no idea what is causing it??

Scale is more like 1:8 not 1:6 As mentioned in original post.

I am not familiar with the 14T gears so hope I set them up right. They were the only gears I could use because of the ‘uneven’ teeth making axle alignment possible to align bars and forks.

 

 

Below shows the correct alignment at straight and then the miss alignment at full lock, it’s only slight but I can’t figure it out 

Edited January 6, 2021 by MangaNOID

[pleegwat]

Your universal joints are misaligned, that may be causing the problem?

[2GodBDGlory]

8 hours ago, pleegwat said:

Your universal joints are misaligned, that may be causing the problem?

There also might be a bit of slack in the connection between the 14T gears. One potential remedy could be to drive a 12T bevel gear with a 14T bevel gear (attached to the steering wheel) to give you a slight gear ratio to counteract the slack. I do love seeing 14T gears in use, though! They have plenty of good applications that many people miss out on by ignoring them.

[HorcikDesigns]

Could the misalignment be caused by torsional flex in the long axle? 

[MangaNOID]

20 hours ago, pleegwat said:

Your universal joints are misaligned, that may be causing the problem?

Well, you may be right. I aligned them, not really knowing what aligning meant, but kind of figured what you meant and It did seem to fix the problem.

But just to make sure I switched back to see what would happen and instead of handle bar turning too much like before, it then turned too little!  anyway thank you it has helped And bars and forks now turn the same. Still can’t figure why that would happen but won’t dwell on it, it’s all good now.

Oh and thanks @2GodBDGlory and @HorcikDesigns but to answer there is no slip in the gears they mesh tight as! And there is no torsional flex in the axle as I loosened everything to try and make sure it wasn’t that either 

Sketching out the bodywork dimensions...

Need to box the top of the forks to the handle bar area for rigidity but otherwise structurally happy for speed building!!

If I like what I come up with I’ll put a bricklink order in for the right colour parts. I’m not good at body stuff so there will be gaps...which is how I like it anyway.

[pleegwat]

3 hours ago, MangaNOID said:

But just to make sure I switched back to see what would happen and instead of handle bar turning too much like before, it then turned too little!

Universal joints are not quite perfect: when at an angle and if one half is turning at constant speed, the speed on the other side is not quite constant. Aligning the joints (by the slits) and ensuring they are at approximately the same angle counteracts this effect; misaligning them amplifies it. When misaligned, turn both a quarter turn to invert the effect.

[2GodBDGlory]

8 hours ago, MangaNOID said:

Oh and thanks @2GodBDGlory and @HorcikDesigns but to answer there is no slip in the gears they mesh tight as!

Just to be clear, I wasn't meaning that it would reduce the slack, but rather that it would slightly adjust the gear ratio, since the driver and follower gears would be different sizes, which could help counteract the slack, rather than eliminating it.

Sounds like you've got it working, though!

[syphoon]

I'll be closely following this one. Nice idea. 

[MangaNOID]

2 hours ago, 2GodBDGlory said:

Just to be clear, I wasn't meaning that it would reduce the slack, but rather that it would slightly adjust the gear ratio, since the driver and follower gears would be different sizes, which could help counteract the slack, rather than eliminating it.

Sounds like you've got it working, though!

Yes sorry, I overlooked that part of the comment when replying. To answer, I did try that but I could not get it to counteract the miss alignment with also limiting the number of gears and the gears with ‘even numbers’ produced a miss alignment themselves, but yes all sorted now thanks!

1 hour ago, syphoon said:

I'll be closely following this one. Nice idea. 

Thanks! Hopefully I can implement it well, into a technic model.

[Dazzzy]

This is a very unusual design, but i really like it so far.  

[steph77]

Looks well started!

Is the front suspension final?

I told me: the suspension travel is too long, why not implement a setup like the BMW R1200 or like the real Honda Goldwing? 

If the front end lateral side panels can open on the final model, coul be a cool thing to show inside?

Keep this one up! it worth it!

S.

[Seasider]

Love the look of this, something between an old fashioned delivery bike and something from the Fallout series. Can’t wait to see how the bodywork comes along.

[MangaNOID]

Ok, thanks for the comments everyone. 
Sorry for leaving replies for so long but time has been difficult to find with young children on holidays and wife doing a thesis. 
anyway I have had to change direction in this slightly as time and parts are limited and bricklinking stuff is out on such time limits these days!

so I have kept the back and will be doing an E-moped type build with a delivery box on the back  just to keep my theme going.

I think I may be able to finish something this way that I will be satisfied with. as it sits now. I can’t believe all the panels I’m using contrary to my usual philosophy 

[MangaNOID]

Probably the last update before entering the contest.

I managed to get a few hours the last couple of days so managed some styling And front steering placement.

fairly happy, but the front mudguard area is proving tuff.

thinking of doing a ‘touring’ version with screen... maybe if I can get it to look right. Screen is a bit too big maybe at the moment.
 

I’m actually really happy with this build so far everything is very sturdy and locked in quite well so this may be a keeper for me as it’s 1:8 scale to go beside my Datsun  if I ever finish it. 

[MangaNOID]

sorry to say I’ve been a little absent so far in this TC but time gets the better of me at the moment.

But I’m finished. It’s not exactly what I hoped for compared to what I started but I just wasn’t going to be able to make the cargo bike as I liked with the time and resources available.

So this is what I have finished up with. The colour scheme I could have was limited so I thought it kinda looked like a medical scooter so that’s where I went with it (just)

certainly not as complicated or technical as some other builds  but it produced some challenges along the way I guess.

 

 

A couple shots without the dress up garb on it and I think it’s a reasonable looking scooter. Just that the colour doesn’t work for a normal scooter.

Chassis

There is the ‘E’ motor in there somewhere  it’s simple but it all works quite well.

 

Edited February 2, 2021 by MangaNOID
Added couple of photos

[steph77]

I am impressed bu the overall size of your model. Bigger than what i imagined.

The design is impressive, and the lines are perfectly captured.

All the system details are also perfectly balanced and find all their place in the whole build.

Really well done.

S.

[johncarpenter]

Really nice build, well done. In some places, the colors are a bit busy, I'm guessing due to parts availability. Nevertheless, it looks fantastic, I think you captured the shapes very well. The back is just excellent.

I would be really interested to see the long wheelbase version as well. Are you planning to build that, after the competition?

[Seasider]

Shaping around the back is great. It’s a shame you didn’t do the future delivery vehicle but this is a great little scooter

[MangaNOID]

Thank you @steph77 

4 hours ago, johncarpenter said:

In some places, the colors are a bit busy, I'm guessing due to parts availability.

I agree. I really struggled to get a happy medium on the colours with parts I had. Bricklinking  is out at the moment for rush parts, as it took almost 2 weeks for some parts to arrive from just 10 kilometres away from me the other week.

but still overall I am very happy with this simple build 

Thank you also @Seasider 

I will be building the cargo bike at some stage. I like the concept too much to give that up yet. I’ll keep the chassis together for now but I’ll need to work on that front compound (?) curve area left and right in LDD as that is what mostly stalled me. Plus boxing the front susp to the real handlebars area for a sturdy build. It’s in the ‘to build queue’

good luck to other entrants, can’t wait to try and decide how to vote there are some marvels entered already!

[Thirdwigg]

I was surprised with how this ended from where it began, but it looks great. I love the colors, and the seat functions are great. I love the little rack at the front, the rear light, and the rear lights. Great job.

[MangaNOID]

Thanks @Thirdwigg 

[Rudivdk]

The level of detail is fantastic, and the first aid theme brings it to the next level. There might be more technical builds in the contest, but this is one of the best looking and best thought-out visual concepts I've seen. And all standard bike functions are there and nicely done. Great build

Also quite interesting to follow your journey in this build, you took some big turns along the way But it paid off!

Good luck in contest!