SURRON LB: RESEARCH & DEVELOPEMENT

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
Jonathan1981   10 W

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SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 12:25am

THE PURPOSE OF THIS AREA IS TO PROVIDE A PLATFORM FOR FURTHER DEVELOPMENT OF THE SURRON LIGHT BEE. YOU'RE ENCOURAGED TO POST IDEA'S, CONCEPTS AND TECHNICAL MATERIAL HERE TO HELP DEVELOP YOUR IDEA, SHARE WITH THE COMMUNITY AND GAIN VALUABLE FEEDBACK . THIS MAY INCLUDE THINGS SUCH AS HAND DRAWN SKETCHES, CAD MODELS/RENDERINGS, MANUFACTURED PROTOTYPES ETC.

ALTHOUGH SOME TANGENTS ARE INEVITABLE, THIS AREA SHOULD REMAIN FOCUSED ON R&D AND DISCUSSIONS OF THAT NATURE RELATING TO THE CONCEPTS, IDEA'S BROUGHT UP IN THIS THREAD.

- NO OVERT MARKETING OF PRODUCTS... if you're working on a concept, work through it on this thread, until you feel you are ready to offer a final product and put a simple link to your website if you do eventually create a sell-able item. ie, this is not a store, just don't keep plugging your product over and over again. Go to the vendor BUY/SELL area instead.

- NO OVERT BASHING OF SOMEONE ELSES PRODUCT OR IDEA

- KEEP THINGS FOCUSSED ON R&D AND RELATED TO CONTENT IN THIS THREAD AS MUCH AS POSSIBLE

-TRY NOT TO COPY SOMEONE ELSE, WE ALL COME UP WITH SIMILAR IDEA'S AT SOME POINT SO IF YOU SEE SOMEONE IS WORKING ON AN IDEA THAT YOU HAD, EITHER PUT YOUR OWN SPIN ON IT AS BEST YOU CAN, OR ASK TO JOIN THEIR TEAM. IF CONFLICTS ARISE, WORK IT OUT THROUGH THE PM SYSTEM.

- THE ULTIMATE GOAL HERE IS TO CROUD SOURCE IDEAS, TROUBLESHOOT PROBLEMS AND ENGINEER SOLUTIONS WHICH WILL EVENTUALLY LEAD TO TANGIBLE PRODUCTS FOR SURRON LIGHT BEE, THAT THE COMMUNITY CAN BUY, TRADE, SHARE ETC. HAVING OPTIONS ROCKS.
_____________________________________________________________________________________________________________________



Alright, so I'll start this off by attaching some renders of the FIRST modeled component I made of the Surron... the foot peg bracket plates...I did them because I thought they'd be easy, little did I know how much drafting and awkward cavities they had...total PIA to model. Anyway.... I'm thinking this would be a nice simple candidate for an upgraded CNC version....what does everyone think? If I designed a CNC plate, is this something you think would be a worthwile endeavour? I'm thinking thicker, stronger BUT lighter, and well....anodized ofcourse, your choice of color..... any other feature we could add to this?

Keep in mind, when enough people agree on a design and want it, the per unit price just goes down :)
Attachments
untitled.181.png
untitled.182.png

Jonathan1981   10 W

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 12:53am

Also interested in getting some feedback on this sprocket design.... this is a 55T design but can be made to any size.. The core body is thicker than stock, .385" but cored out on the back so still fairly lightweight... 1lb. Clean and simple hole pattern, screen printed graphics on the front, plain black screen print on the back. CNC 6061 billet. Thinking now 7000 series might be better tho...
Attachments
55T_sprocket.185.jpg
55T_sprocket.186.jpg
55T_sprocket.187.jpg
55T_sprocket.188.jpg
55T_sprocket.189.jpg

cloudwalker   100 µW

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by cloudwalker » Sep 10 2018 1:56am

Great thread, I want to share some Sur-Ron LB upgrades from china, first one(edit: this is not my work, I only do the translation, original poster's name is 时平, he is a photographer):
Image
Image
see original post: https://tieba.baidu.com/p/5576806979?see_lz=1&pn=1
and this: https://weibo.com/ttarticle/p/show?id=2 ... 6716239057



Image
Handlebar -> KORE mpeg



Image
Image
Pedal -> motorcycle size



Image
Fork -> fox 40



Image
Parts custom painting, some parts he can handle by himself, other parts need anodize, lots of vendor offer that service on Taobao(for example: http://imgsrc.baidu.com/forum/pic/item/ ... 171691.jpg)
Image
Image
Image
Image
Image
Image



Image
hub -> koozer mountain bike hub



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break -> HOPE V4(Dissolving surface's black painting with caustic soda)



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custom Titanium spring from Taobao(he used this one: https://shop117231824.taobao.com/index.htm )



Image
Image
custom CNC tooth, again, Taobao



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Titanium screw, apparently everything must go Ti



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adding a kickstand block, he didn't say where he got it, but I'm guessing Taobao



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oh also he changed the monitor to the battery cover


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After all those work, the bike is now 5085g lighter

With bicycle hub, it seems the range increased, downhill is much smoother, but if the free-wheel got anything to do with the motor's cooling, he didn't mention
Last edited by cloudwalker on Sep 10 2018 2:43pm, edited 5 times in total.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Allex » Sep 10 2018 3:00am

CW, what a sick bike that is! Great work!

Re foot peg bracket plates, those parts are really cheap and are sourced from the vendor. Not sure if you want them stronger because this will put more stress on the base frame. Probably better if the brackets brakes of during an impact and not bringing the frame with it.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by macribs » Sep 10 2018 5:42am

Great idea this thread, subscribed.
Cloudwalker, that is a sweet upgraded one. Nice!

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by fechter » Sep 10 2018 8:45am

Here is the wiring diagram from the manual. It is not fully detailed or accurate, but gives an overall layout.
As far as I can tell, the 12V dc-dc converter is inside the controller.

The small plug on the battery feeds 12v to the backlight on the battery fuel gauge and the bike can run without it being plugged in. I have yet to figure out what the other wires do.
Light Bee Wiring Diagram2.jpg
"One test is worth a thousand opinions"

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by n2mb » Sep 10 2018 8:53am

fechter wrote:
Sep 10 2018 8:45am


The small plug on the battery feeds 12v to the backlight on the battery fuel gauge and the bike can run without it being plugged in. I have yet to figure out what the other wires do.
I think there is a data link on that connector. It should convey information about the battery state. I'm also curious about the third pin on the charge port. I think it has the battery temperature. Not sure if it is just a thermocouple or if it is a data bus with a digital readout of temperature.

Has anyone charged the battery with an aftermarket charger yet? I'm planning to make an adapter for my Cycle satiator soon. I'd like to charge to 90% to preserve battery life.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 10:53am

cloudwalker wrote:
Sep 10 2018 1:56am
Great thread, I want to share some Sur-Ron LB upgrades from china, first one:
Image
see: https://tieba.baidu.com/p/5576806979?see_lz=1&pn=1

Image
Handlebar -> KORE mpeg

Image
Pedal -> motorcycle size

Image
Fork -> fox 40

Image
Parts custom painting
Image
Image
Image
Image

Image
mountain bike hub

Image
Image
custom CNC tooth

Image
custom titanium spring

Image
Image
Image
Hey cloudwalker, you can't just post sweet images like that without an explaination! :lol:

Super nice stuff....

Is that free wheel on the rear hub? that is VERY cool... I was thinking why the system wasn't setup with a free-wheel already. I'm wondering, is the motor cooled by chance by a squirrel cage fan or something that's benefited from NOT having a free-wheel and being forced to spin when not under load?

Also, is that a TI spring? can you elaborate more on this?

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 11:04am

Allex wrote:
Sep 10 2018 3:00am
CW, what a sick bike that is! Great work!

Re foot peg bracket plates, those parts are really cheap and are sourced from the vendor. Not sure if you want them stronger because this will put more stress on the base frame. Probably better if the brackets brakes of during an impact and not bringing the frame with it.
I think the idea with aftermarket parts is just to have cool custom bling to add to the bike regardless of cost...

Interesting point about wanting those brackets to be weaker than the frame...makes me re-think this a bit.
I think we can agree that any sort of breakage of that part is not desired, you'd break your foot if they broke while landing a jump...so strength in vertical direction needs to stay... but if you spilled the bike, and these were built super tough, and it fell on it's side and it hit the peg.. then that could lead to some bending/breaking of the main frame for sure....

So, the solution, design in a break point for lateral forces :) Super strong in vertical direction, snapable (with extreme load, just under the stress point of the main frame component) in the lateral direction..

thoughts?

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Rix » Sep 10 2018 2:16pm

Sub'd

cloudwalker   100 µW

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by cloudwalker » Sep 10 2018 2:23pm

Jonathan1981 wrote:
Sep 10 2018 10:53am
Hey cloudwalker, you can't just post sweet images like that without an explaination! :lol:
I edited my post, hope it answers some of your questions

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 2:46pm

cloudwalker wrote:
Sep 10 2018 2:23pm
Jonathan1981 wrote:
Sep 10 2018 10:53am
Hey cloudwalker, you can't just post sweet images like that without an explaination! :lol:
I edited my post, hope it answers some of your questions
10-4. Thanks buddy! :)

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 2:57pm

CW, those mods of awesome. Congrats! keep it up!

If you're not using regen, I think a free-wheel is a no brainer, ofcourse you'll get better range. I only wonder if the motor get's forced cooling due to being slaved to the wheel/chain during no throttle.....anyone know this or make some assumptions.... if there is a squirrel cage fan in there than it would be beneficial to have it slaved vs. freewheeled....we need to look into this...

I notice the throttle looks modified also, the cable runs down and out of way of the brake...That's one thing I'm noticing, my wrist is too cocked back while I'm standing up applying full throttle, but I can't rotate the assembly forward because the brake is in the way and throttle cable hits it... :?

@CW, are those foot pegs just ebay pit bike pegs?

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by stonezone » Sep 10 2018 4:37pm

fechter wrote:
Sep 10 2018 8:45am
Here is the wiring diagram from the manual. It is not fully detailed or accurate, but gives an overall layout.
As far as I can tell, the 12V dc-dc converter is inside the controller.

The small plug on the battery feeds 12v to the backlight on the battery fuel gauge and the bike can run without it being plugged in. I have yet to figure out what the other wires do.

Light Bee Wiring Diagram2.jpg
the converter is down in front of the motor behind the plastic guard between it and the controller. it can handle up to 18s so far tested.
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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by cloudwalker » Sep 10 2018 5:00pm

can we change the bearing of this so-called [coaxial transmission system] into a real transmission? like a three speed rear hub transmission
Image

add this
Image
to the bearing into this:
Image

Image

sorry for my poor modeling, hope you guys understand my idea here. If we can change the bearing into a 3 stage transmission(0.75-1-1.25), then there's no need for custom tooth, 1 stage for more torque situation like climbing, 2 stage just stock normal, 3 stage for road racing, everyone's happy. Is it possible?

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by liveforphysics » Sep 10 2018 6:11pm

That's the most sexy Sur Ron I've seen!

I wonder if he knows the motor has potential for drastically more power. :-)
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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 6:15pm

cloudwalker wrote:
Sep 10 2018 5:00pm
can we change the bearing of this so-called [coaxial transmission system] into a real transmission? like a three speed rear hub transmission
Image

add this
Image
to the bearing into this:
Image

Image

sorry for my poor modeling, hope you guys understand my idea here. If we can change the bearing into a 3 stage transmission(0.75-1-1.25), then there's no need for custom tooth, 1 stage for more torque situation like climbing, 2 stage just stock normal, 3 stage for road racing, everyone's happy. Is it possible?
oh my, think you're onto something man, thing is, with current frame, so little room to work with, don't think there would be enough room...the one cool thing with the current setup though is it's pretty bullet proof, having a mechanical gearbox in there does add to complexity, but it's an intriguing idea for sure

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by liveforphysics » Sep 10 2018 6:33pm

You can achieve a point with stock motor and gearing (and swapped controller)at which as a 200lbs rider, it violently wheelies, and still achieves more top-end than feels like a good idea on the bikes nimble geometry.

Phase current is how you win at EV's, anything to get more. The motor runs fine with the stock 150amps phase (or whatever it is), but feeding it 700amps releases a monster.
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Each engine start sprays them into a shared atmosphere which includes beings not offered an opportunity to consent accepting these cancer experiences and defective genetics life experiences.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by 3DTOPO » Sep 10 2018 6:44pm

I am planning to develop a wider swing arm. Goal is to accommodate up to 5" fatty tires and 6" snow track.

Does anyone have the dimensions or models for the Swing arm? Just thought I would ask first.

Also, are there any competent modelers on here that might help with a swing arm design for a reasonable fee? I can model stuff but it's not exactly my forte. It could be - but just haven't had the time to invest in it. Someone with Solidworks would be ideal. If you are interested, please feel free to PM me.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 6:51pm

3DTOPO wrote:
Sep 10 2018 6:44pm
I am planning to develop a wider swing arm. Goal is to accommodate up to 5" fatty tires and 6" snow track.

Does anyone have the dimensions or models for the Swing arm? Just thought I would ask first.

Also, are there any competent modelers on here that might help with a swing arm design for a reasonable fee? I can model stuff but it's not exactly my forte. It could be - but just haven't had the time to invest in it. Someone with Solidworks would be ideal. If you are interested, please feel free to PM me.
I'm modeling the whole bike..... if you're wondering lol
Problem is, just don't know when it will be done....the plan was to do it over the winter so it doesn't take away from ride time, if you want to wait until then..

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by 3DTOPO » Sep 10 2018 7:21pm

Jonathan1981 wrote:
Sep 10 2018 6:51pm
3DTOPO wrote:
Sep 10 2018 6:44pm
I am planning to develop a wider swing arm. Goal is to accommodate up to 5" fatty tires and 6" snow track.

Does anyone have the dimensions or models for the Swing arm? Just thought I would ask first.

Also, are there any competent modelers on here that might help with a swing arm design for a reasonable fee? I can model stuff but it's not exactly my forte. It could be - but just haven't had the time to invest in it. Someone with Solidworks would be ideal. If you are interested, please feel free to PM me.
I'm modeling the whole bike..... if you're wondering lol
Problem is, just don't know when it will be done....the plan was to do it over the winter so it doesn't take away from ride time, if you want to wait until then..
Yeah, getting something built before winter equals winter ride time, so a day here and there is a good investment for many days in return come winter.

Would modeling the swing arm be a good place to start? Willing to pay something for even a model of the stock one.

I can cast the whole thing, but cast aluminum isn't as fracture resistant as the forged frame - so it would need to be a bit beefed up. I have a carbon-fiber tube and aluminum hybrid in mind. That's ultimately what I would like to have modeled and of course would pay for it.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 8:50pm

3DTOPO wrote:
Sep 10 2018 7:21pm
Jonathan1981 wrote:
Sep 10 2018 6:51pm
3DTOPO wrote:
Sep 10 2018 6:44pm
I am planning to develop a wider swing arm. Goal is to accommodate up to 5" fatty tires and 6" snow track.

Does anyone have the dimensions or models for the Swing arm? Just thought I would ask first.

Also, are there any competent modelers on here that might help with a swing arm design for a reasonable fee? I can model stuff but it's not exactly my forte. It could be - but just haven't had the time to invest in it. Someone with Solidworks would be ideal. If you are interested, please feel free to PM me.
I'm modeling the whole bike..... if you're wondering lol
Problem is, just don't know when it will be done....the plan was to do it over the winter so it doesn't take away from ride time, if you want to wait until then..
Yeah, getting something built before winter equals winter ride time, so a day here and there is a good investment for many days in return come winter.

Would modeling the swing arm be a good place to start? Willing to pay something for even a model of the stock one.

I can cast the whole thing, but cast aluminum isn't as fracture resistant as the forged frame - so it would need to be a bit beefed up. I have a carbon-fiber tube and aluminum hybrid in mind. That's ultimately what I would like to have modeled and of course would pay for it.

A swing arm can be built many different ways, that's not a problem....I wouldn't suggest backyard sand casting no. lol. Def would be fracture prone. Surron used die casting to best of my knowledge, so it's done in a pressurized mold.

Uh well, I think modeling the initial swing arm would be ideal, but not sure I want to pull mine off yet... if you want to do something custom, you just need a few measurements from the current frame and swing arm and then you can design anything you want. If you can get me the following measurements, and possibly some rough sketches of what you want to do, I can POSSIBLY look into modeling it, but no guarantee's with my current schedule. I think tubing, sheet metal and CNC parts would be the cheapest materials to start with...

need to know:

- swing arm axle diam
- swing arm axle spacing to the swing arm axle hub from either side of frame, if there are any spacers etc.
- obviously main frame width at swing arm axle..
- Rear swing-arm wheel spacing
- shock linkage mount, relative to swing arm pivot, this could get weird given the not so straight lines of the swing arm...I'd measure a line from swing arm pivot to rear axle, then from that line, measure perpendicular up to that mount hole....to be as accurate as possible, sometimes you have to get creative, use straight edges, tape stuff down, use card board etc.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by 3DTOPO » Sep 10 2018 10:26pm

Jonathan1981 wrote:
Sep 10 2018 8:50pm
3DTOPO wrote:
Sep 10 2018 7:21pm
Jonathan1981 wrote:
Sep 10 2018 6:51pm
3DTOPO wrote:
Sep 10 2018 6:44pm
I am planning to develop a wider swing arm. Goal is to accommodate up to 5" fatty tires and 6" snow track.

Does anyone have the dimensions or models for the Swing arm? Just thought I would ask first.

Also, are there any competent modelers on here that might help with a swing arm design for a reasonable fee? I can model stuff but it's not exactly my forte. It could be - but just haven't had the time to invest in it. Someone with Solidworks would be ideal. If you are interested, please feel free to PM me.
I'm modeling the whole bike..... if you're wondering lol
Problem is, just don't know when it will be done....the plan was to do it over the winter so it doesn't take away from ride time, if you want to wait until then..
Yeah, getting something built before winter equals winter ride time, so a day here and there is a good investment for many days in return come winter.

Would modeling the swing arm be a good place to start? Willing to pay something for even a model of the stock one.

I can cast the whole thing, but cast aluminum isn't as fracture resistant as the forged frame - so it would need to be a bit beefed up. I have a carbon-fiber tube and aluminum hybrid in mind. That's ultimately what I would like to have modeled and of course would pay for it.

A swing arm can be built many different ways, that's not a problem....I wouldn't suggest backyard sand casting no. lol. Def would be fracture prone. Surron used die casting to best of my knowledge, so it's done in a pressurized mold.
Thats pretty much what I said, but the Sur-Ron frame is not die-cast. It is forged under 6,000 tons of pressure.

So, even a CNC cut one would need to be more stout than a forged one. That said it is feasible to to investment cast one that would be more than stout enough, but I would it have to be significantly heavier than the stock one for reasons mentioned . Really not ideal - and I want to make it lighter than the stock one utilizing carbon fiber structure. ;)
Jonathan1981 wrote:
Sep 10 2018 8:50pm
Uh well, I think modeling the initial swing arm would be ideal, but not sure I want to pull mine off yet... if you want to do something custom, you just need a few measurements from the current frame and swing arm and then you can design anything you want. If you can get me the following measurements, and possibly some rough sketches of what you want to do, I can POSSIBLY look into modeling it, but no guarantee's with my current schedule. I think tubing, sheet metal and CNC parts would be the cheapest materials to start with...
Understood. What do you use for modeling?
Jonathan1981 wrote:
Sep 10 2018 8:50pm
need to know:

- swing arm axle diam
- swing arm axle spacing to the swing arm axle hub from either side of frame, if there are any spacers etc.
- obviously main frame width at swing arm axle..
- Rear swing-arm wheel spacing
- shock linkage mount, relative to swing arm pivot, this could get weird given the not so straight lines of the swing arm...I'd measure a line from swing arm pivot to rear axle, then from that line, measure perpendicular up to that mount hole....to be as accurate as possible, sometimes you have to get creative, use straight edges, tape stuff down, use card board etc.
Probably the best way I could get measurements off it is by putting it in my CNC machine and get readings from the different points with a laser pointer. My CNC machine's resolution is ~0.0005".

But I don't want to take my swing arm off either! Ugh - guess it's looking like I'll have to - if I am to make one before winter.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by Jonathan1981 » Sep 10 2018 11:16pm

3DTOPO wrote:
Sep 10 2018 10:26pm
Jonathan1981 wrote:
Sep 10 2018 8:50pm
3DTOPO wrote:
Sep 10 2018 7:21pm
Jonathan1981 wrote:
Sep 10 2018 6:51pm


I'm modeling the whole bike..... if you're wondering lol
Problem is, just don't know when it will be done....the plan was to do it over the winter so it doesn't take away from ride time, if you want to wait until then..
Yeah, getting something built before winter equals winter ride time, so a day here and there is a good investment for many days in return come winter.

Would modeling the swing arm be a good place to start? Willing to pay something for even a model of the stock one.

I can cast the whole thing, but cast aluminum isn't as fracture resistant as the forged frame - so it would need to be a bit beefed up. I have a carbon-fiber tube and aluminum hybrid in mind. That's ultimately what I would like to have modeled and of course would pay for it.

A swing arm can be built many different ways, that's not a problem....I wouldn't suggest backyard sand casting no. lol. Def would be fracture prone. Surron used die casting to best of my knowledge, so it's done in a pressurized mold.
Thats pretty much what I said, but the Sur-Ron frame is not die-cast. It is forged under 6,000 tons of pressure.

So, even a CNC cut one would need to be more stout than a forged one. That said it is feasible to to investment cast one that would be more than stout enough, but I would it have to be significantly heavier than the stock one for reasons mentioned . Really not ideal - and I want to make it lighter than the stock one utilizing carbon fiber structure. ;)
Jonathan1981 wrote:
Sep 10 2018 8:50pm
Uh well, I think modeling the initial swing arm would be ideal, but not sure I want to pull mine off yet... if you want to do something custom, you just need a few measurements from the current frame and swing arm and then you can design anything you want. If you can get me the following measurements, and possibly some rough sketches of what you want to do, I can POSSIBLY look into modeling it, but no guarantee's with my current schedule. I think tubing, sheet metal and CNC parts would be the cheapest materials to start with...
Understood. What do you use for modeling?
Jonathan1981 wrote:
Sep 10 2018 8:50pm
need to know:

- swing arm axle diam
- swing arm axle spacing to the swing arm axle hub from either side of frame, if there are any spacers etc.
- obviously main frame width at swing arm axle..
- Rear swing-arm wheel spacing
- shock linkage mount, relative to swing arm pivot, this could get weird given the not so straight lines of the swing arm...I'd measure a line from swing arm pivot to rear axle, then from that line, measure perpendicular up to that mount hole....to be as accurate as possible, sometimes you have to get creative, use straight edges, tape stuff down, use card board etc.
Probably the best way I could get measurements off it is by putting it in my CNC machine and get readings from the different points with a laser pointer. My CNC machine's resolution is ~0.0005".

But I don't want to take my swing arm off either! Ugh - guess it's looking like I'll have to - if I am to make one before winter.
if it's forged than that's even better than die cast... why not just use simple tube and CNC? always start easy and cheap for proto's. See what you can do for those measurement and keep us posted.

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Re: SURRON LB: RESEARCH & DEVELOPEMENT

Post by 3DTOPO » Sep 10 2018 11:21pm

Jonathan1981 wrote:
Sep 10 2018 11:16pm
if it's forged than that's even better than die cast...
Yes, of course it is. That is why I offered the correction. ;)
Jonathan1981 wrote:
Sep 10 2018 11:16pm
why not just use simple tube and CNC? always start easy and cheap for proto's. See what you can do for those measurement and keep us posted.
Yeah, that's pretty much the plan! I wasn't suggesting that I was going to make it any other way.

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