Author Topic: Project "Laubfrosch" - the trials hybrid  (Read 47381 times)

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grumbern

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Reply #150 on: October 19, 2020, 03:48:38 pm
And on we go with the filler neck. Starting with a 55x55x12mm piece of AlMg3:




Drilled a center hole in the middle on both sides:




And put it on the lathe between centers:




With this short geometry this set up isn't ideal, but it works, if you only make light cuts.
Second side was done in the calssic three jaw chuck:



The finished filler neck viewed from below:




...and above:




The filler cap fits perfectly:






Now it's really starting to get exciting!
Andreas


heloego

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Reply #151 on: October 20, 2020, 11:39:03 pm
Nice!Gotta love this thread!  ;D
'18 Bonneville T-100, Blue/White
'12 C5 Classic
'06 Electra X AVL w/32mm Mikuni and Gold Star system.


uhu

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Reply #152 on: October 30, 2020, 03:04:10 pm
cannot see pictures any more... :-[


Adrian II

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Reply #153 on: October 30, 2020, 04:00:03 pm
Try a different internet browser. I can see most pictures with Firefox, if that does not work for you then try Chromium, the open source version of Google Chrome.

A.
Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...


grumbern

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Reply #154 on: October 30, 2020, 04:32:52 pm
I've heard from several people that they have problems seeing pictures hosted on third party servers recently and I suppose it's a software update thas causes this. When clicking in the area where the pictures should be you should be able to "open in new tab". This is a bit laborious but still a workaround...


Boxerman

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Reply #155 on: October 30, 2020, 05:53:38 pm
cannot see pictures any more... :-[

Not just me then?
I can see other poster's images but not ones on Andreas's posts.
[Using Chrome]

Frank


uhu

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Reply #156 on: November 02, 2020, 12:57:40 pm
Can see them indeed again with an other browser.
Thx.


grumbern

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Reply #157 on: November 07, 2020, 10:27:30 pm
Some more updates.
The front wheel is now done an equipped with a tyre:




I also did some retouching on the right hand tank panel and now I really like it. I don't say that too often, but I am satisfied with it :)




So I tack welded the three pieces:




The welding will be taken care of by a professional though. My results don't reach the level of quality that I'd want and trust. With this thin material and vibrations every little error won't be forgiven.

But it doesn't look to bad until now:




So long,
Andreas


Adrian II

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Reply #158 on: November 07, 2020, 11:04:03 pm
The tank should be a classic Bike's crowning glory, I hoper you professional welder gets this.

Meanwhile that headlamp could use a bit of tender loving care, especially the rim. Next on your job list?

A.

Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...


grumbern

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Reply #159 on: November 08, 2020, 12:47:58 pm
Yeah, he's welding the battery cases for the new Porsche Taycan at the moment, so some good meters of welding Aluminium every day from 1mm to over 20. I guess he's got some experience and knows his trade :)
He also thought the pictures I showed him quite astonishing, so I don't think he'll just do it as a simple side job.

The headlamp should probably be the last thing I am concerned with, lot's of other stuff yet to be done there and a headlamp isn't that necessary for a trials bike ;)

Andreas


Adrian II

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Reply #160 on: November 08, 2020, 06:23:18 pm
If your welder is convinced that you're as serious about what you're doing as he is about his own work, that is a very hopeful sign!

A.
Grumpy Brit still seeking 500 AVL Bullet perfection! Will let you know if I get anywhere near...


grumbern

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Reply #161 on: November 20, 2020, 10:41:47 pm
Well guys, one (to me) big step is taken: The top of the tank is welded!  8)






With cap:




The root of the weld is very strong ;)




Thanks to Chris, who did this professional weld, that was beyond my possibilities. I won't sand the welds but leave them as they are.

Despite some concerns, the cap isn't as prone to causing any harm as it might seem:




Also the oil pumps and pre filled filter (who ever spent an hour with the kick starter to fill the dry system will know why) are installed in the timing chest cover:




So long,
Andreas


heloego

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Reply #162 on: November 21, 2020, 06:01:35 am
Oh, so NICE!  ;D 8)
Glad you got some help on the welding. I know a good weld from a bad one, but until I get some practice with my MIG rig there's no way I can compete with that.
'18 Bonneville T-100, Blue/White
'12 C5 Classic
'06 Electra X AVL w/32mm Mikuni and Gold Star system.


grumbern

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Reply #163 on: November 29, 2020, 06:03:27 pm
Yeah, Chris is a welder in our firms prototyping departement and does a lot of crash relevant welds on structure parts for Porsche, BMW and Audi. So he definitely knows how to do that correctly :)

Today I was finally able to do the cut out for the tank tunnel. For that after marking everything I drilled the radius:




After removing the excess material I filed the edges, final shaping will be done together with the tunnel:




Fits much better, that's the way to go! :D




So long,
Andreas


grumbern

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Reply #164 on: December 22, 2020, 12:41:01 pm
May the puzzle begin:



All parts found and serviceable, ready for cleaning: