login   |    register
Motorcycles
Scale motorcycle modeling topics.
Hosted by James Bella
HARLEY HILLCLIMBER
justsendit
Visit this Community
Colorado, United States
Member Since: February 24, 2014
entire network: 2,478 Posts
KitMaker Network: 270 Posts
Posted: Wednesday, January 20, 2016 - 11:43 AM GMT+7
Very cool! Nice work on the small details!

—mike
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Wednesday, January 20, 2016 - 07:22 PM GMT+7
-!!GASP!!-
A comment.
Thanks Mike , more to come.



Namabiiru
#399
Visit this Community
Rhode Island, United States
Member Since: March 05, 2014
entire network: 2,404 Posts
KitMaker Network: 359 Posts
Posted: Thursday, January 21, 2016 - 02:14 AM GMT+7
Usually just too astonished to reply. Astounding detail!

tinbanger
Visit this Community
Ontario, Canada
Member Since: February 04, 2008
entire network: 2,296 Posts
KitMaker Network: 139 Posts
Posted: Thursday, January 21, 2016 - 01:12 PM GMT+7
Hi Steve!
I am just sitting back and watching!.
Great work !
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Thursday, January 21, 2016 - 04:25 PM GMT+7
THANKS Richard and Mark, and everyone else looking in.


...to the moon Alice , to the moon...
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Friday, January 22, 2016 - 09:35 PM GMT+7
...twice...



Gottaa love those shotguns!
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Saturday, January 23, 2016 - 06:27 PM GMT+7
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Monday, January 25, 2016 - 02:24 PM GMT+7
Why is there a prob with my post?
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Saturday, January 30, 2016 - 05:54 PM GMT+7


krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Monday, February 01, 2016 - 03:38 AM GMT+7
Namabiiru
#399
Visit this Community
Rhode Island, United States
Member Since: March 05, 2014
entire network: 2,404 Posts
KitMaker Network: 359 Posts
Posted: Thursday, February 04, 2016 - 01:22 AM GMT+7
All you need is a miniaturized garage in the background and one would swear we were following a build of a real bike.

krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Thursday, February 04, 2016 - 03:26 AM GMT+7
Thanks Mark.
Slow progress as I work on a big job , real life an' all ya know.
Chain exam:
inspect element?
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Thursday, February 04, 2016 - 01:25 PM GMT+7
The_Snowman
Visit this Community
England - South East, United Kingdom
Member Since: August 26, 2015
entire network: 61 Posts
KitMaker Network: 7 Posts
Posted: Saturday, February 06, 2016 - 05:02 AM GMT+7
Ooooh, PE bike chain - this can be a headache, but I have confidence in your abilities!!

You are knocking the details out of the park!!

Keep it up!!
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Saturday, February 06, 2016 - 02:18 PM GMT+7
No worries Gavin! Thank you.

The p/e chain is of my own design. In looking at the frets I can see some issues. I will be able to work with them but it will be a trial. Eduard was unable to do a fretless product , so 400 links will have to be finished by hand. I have a plan and have spent years pondering the work. You can see my marker and the date on the frets...
A p/e chain is easily done , Top Studio has a 1/12 scale RC211 set that passed easily for 1/9 on my Bobber:

krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Monday, February 08, 2016 - 03:28 AM GMT+7
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Wednesday, February 10, 2016 - 05:27 PM GMT+7
T'back T'day so this is all ya get:
Fuel system details.

This is an XR 750 (pushrods thru the fins -dead giveaway ) based Top Fueler. Top Fuel is Nitromethane , a monopropellant.

This system is pressurized ,the pump is the black object on the top of the engine case , usually where the mag is. The mag is re-located to the front of the engine, you will see the curved bottom of it in the lower right of the pic.

From the pump we see a big fat feed to the bottom of the tank, to the petcock , and a return to the top of the tank. In that return line we see an orange canister, this is the 'pill'. The 'pill's' orifice size is where fuel pressure is tuned.

We CANT see the line from the pump split into two , for the twin Dellorto's ( I think) float bowls, from the bowls we can see the return line up to the top of the tank. I think that's a filter in the line.

Basic system for a competition machine.

The_Snowman
Visit this Community
England - South East, United Kingdom
Member Since: August 26, 2015
entire network: 61 Posts
KitMaker Network: 7 Posts
Posted: Wednesday, February 10, 2016 - 10:32 PM GMT+7
Where there is a will, there is a way...

Nice solution for the chain!
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Friday, February 12, 2016 - 06:55 PM GMT+7
Thank you Snowman.
A oouple pieces for the shift mechanism:


krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Sunday, February 14, 2016 - 04:11 AM GMT+7
Primary drive plate gets some detail:
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Tuesday, February 16, 2016 - 03:29 PM GMT+7
Chain drama:
Rather than screw around with pins , rivits , beads , crimps etc. I did try all of them to singular avail. They are all complicated and hard to assemble in an orderly fashion. I designed the chain links with the idea of combining the rollers and pins into one piece.Some times overcomplicating matters is an endless and fruitless endeavor.
Simple is best. The math to work out matching sprockets and links was challenging , but only needed to be done once. I calculated off of easily attainable material, easy to work with material and it appears to have worked out;



To assemble the chain I need to make a long straight run of sprocket teeth. The pin/roller is ordinary .035" Evergreen plastic rod , easy to get and a soldering iron mushrooms the head trapping the links. Traditional , easy modelling solving a delicate problem.
Your welcome.
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Tuesday, February 16, 2016 - 05:06 PM GMT+7
Two tools will have to be made. A long flat run of teeth , perhaps nubbed so two can be pressed together to trap and space the rollers. And a 'tuning fork' shim to allow cutting of the protruding plastic rod to the correct length.


Downside at this point is the obvious oversize of the 'mushroom ' head , starkly shown by the white plastic. I can live with that one. Feel free to point out any other issues.

I'm pretty sure all of this has been done before by another modeller. There is little that is 'new' in modelling.
Thank you ,Steve
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Tuesday, February 16, 2016 - 06:18 PM GMT+7
I put enough time on this to be satisfied it will work. Switching down to .030' rod worked out nicely:


I'll leave this alone for a while and go finish the cannon.
krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Wednesday, February 17, 2016 - 05:16 PM GMT+7
Never mind the cannon...
The black strip is 4.5" x .75". Made from the file for the sprockets. Cut in flat black vinyl. 7 or 8 layers will be enough , and then some ledges full width to hold the links, we may have a workable tool:





krow113
Visit this Community
British Columbia, Canada
Member Since: March 16, 2010
entire network: 430 Posts
KitMaker Network: 58 Posts
Posted: Thursday, February 18, 2016 - 05:37 PM GMT+7
I cut a lot of 'flat sprockets' made a cool tool:

Looks real good , a couple of troughs on each side to hold and keep the work parts ready...
All sprockety and everything:

A whole day almost , wasted , yup, USELESS! The links and rollers are so small they fly off at any opportunity. So As I came to the discovery of this vital info , I saw a way to do the tool stealing Tamiya's RC1966 type of tool. I layed out a 'nubbed ' profile, in order to capture the .030" rod:

The layered edges of the vinyl trap the rod as it goes into the hole , holding it firmly. The strips hold the links firmly. Assemble one side , tape it up to hold and flip the jig over to assemble the other side.. It wont be easy.Got a useable , easily made , easily used assembly tool for the APPROX. 8" of Hillclimber cain. Prolly 500 links to be cleaned on both ends , 250 4mm .030" rod pieces to be cut and mushroomed on one end.