Custom frame for the Cyclone Coaxial motor

[Buckow]

Amazing work. Out of curiosity what leverage ratios did you end up using? It looks like a nice rising rate linkage similar to the old Turner DH bikes.

Thanks! Yes very similar to a 2006ish Turner DHR. Leverage ratio is about 3.07 - 66 mm stroke with around 204 mm wheel travel (2.6 inches x 8 inches)
I may need to add a heavier spring (currently 550lbs) but I'll wait and see how it all pans out.

Nice! Those worked great!
If you make 2 shock mount holes on the front shock mount you can change the progression easily and have an extra adjustment if you want to tune it. Sometimes that is a helpful tool if you don’t have a lot of different springs. If 200mm travel is your goal then I would consider a 240mm x 75mm stroke shock or a 225x75 metric standard shock or at least leave room for that in your frame design. High leverage ratio from the 66mm shock might need a 600 to 700lbs spring and then your rebound damping will struggle to control the wheel. It looks like you have 32% of progression but possibly a highish starting point.

 

[Chambers]

Amazing work. Out of curiosity what leverage ratios did you end up using? It looks like a nice rising rate linkage similar to the old Turner DH bikes.

Thanks! Yes very similar to a 2006ish Turner DHR. Leverage ratio is about 3.07 - 66 mm stroke with around 204 mm wheel travel (2.6 inches x 8 inches)
I may need to add a heavier spring (currently 550lbs) but I'll wait and see how it all pans out.

Nice! Those worked great!
If you make 2 shock mount holes on the front shock mount you can change the progression easily and have an extra adjustment if you want to tune it. Sometimes that is a helpful tool if you don’t have a lot of different springs. If 200mm travel is your goal then I would consider a 240mm x 75mm stroke shock or a 225x75 metric standard shock or at least leave room for that in your frame design. High leverage ratio from the 66mm shock might need a 600 to 700lbs spring and then your rebound damping will struggle to control the wheel. It looks like you have 32% of progression but possibly a highish starting point.

Yeah good idea about the two shock mount points - Thanks

 

[Chambers]

Quick Little Update - Still slowly toiling away[youtube]-EcuwrjH0D8[/youtube]

 

[Chambers]

Another Update

[youtube]ONQ_nioNpl0[/youtube]

 

[Cowardlyduck]

Another Update

Thanks for the shoutout!
Keep up the good work!

Cheers

 

[Chambers]

OK a bit off topic but looking for some opinions/advice....
If you've been following along you'll remember I blew a coil off the board of my welder (pics below) I'm wondering if anyone knows if this is D.I.Y fixable and how to do it?
Not really time sensitive since I have another welder already but I'd like to be able to sell one of them once this one is repaired to free up some more project funds.

Below is a link to the schematic (pages 33 and 34)

https://files.irs.wisnz.co.nz/nzspm...IM7908-1 Powercraft 210&250C MIG (Final).pdf

 

[Chambers]

Looking closely at the diagram it doesn't seem to match the PCB or perhaps I'm reading it incorrectly...

 

[Tommm]

Looking closely at the diagram it doesn't seem to match the PCB or perhaps I'm reading it incorrectly... Capture.JPG2.JPG

I would be looking for electronics repair advice in a completely different place. Perhaps eevblog forum.

 

[Chambers]

Looking closely at the diagram it doesn't seem to match the PCB or perhaps I'm reading it incorrectly... Capture.JPG2.JPG

I would be looking for electronics repair advice in a completely different place. Perhaps eevblog forum.

Yeah I've put the feelers out in a few places - you never know who might be reading...

 

[Deafcat]

Hey Chambers, how's this bike coming along? Interested to see more!

 

[Chambers]

Hey Chambers, how's this bike coming along? Interested to see more!

Thanks! Slowly slowly creeping along - I'll try to post some pics at some point this week.

 

[Skaiwerd]

Any updates?
I’m considering this motor with the left handed drive version like you are using.

 

[Chambers]

Any updates?
I’m considering this motor with the left handed drive version like you are using.

Not really any notable progress - I've been a bit distracted building my CNC... hoping to get her up and running over the christmas break... thanks for the push though probably just what I needed!

 

[Deafcat]

Yet another promising project stalled with the woes of home hobbyist CNC... best of luck, I do think it's always smarter to outsource the CNC milling/laser/etc.

Owning a finnicky CNC, at best, you'll break even (best case scenario!). Applying time and skills to design is more important, leave the cutting to a jobbing shop, and if you get a good price you can actually make money. Same goes for 3D printing, a cheap printer will get a few things done, but is no substitute for high-quality parts from Shapeways or such (or an expensive, reliable printer).

I do hope your CNC project goes well though! Most people make the mistake of trying to learn machining, CNC setup+operation, AND machine tool building all at the same time, and this is why they encounter many troubles.

 

[Chambers]

Yet another promising project stalled with the woes of home hobbyist CNC... best of luck, I do think it's always smarter to outsource the CNC milling/laser/etc.

Owning a finnicky CNC, at best, you'll break even (best case scenario!). Applying time and skills to design is more important, leave the cutting to a jobbing shop, and if you get a good price you can actually make money. Same goes for 3D printing, a cheap printer will get a few things done, but is no substitute for high-quality parts from Shapeways or such (or an expensive, reliable printer).

I do hope your CNC project goes well though! Most people make the mistake of trying to learn machining, CNC setup+operation, AND machine tool building all at the same time, and this is why they encounter many troubles.

:lol: you're probably right.
For me the driver is that for the same money as a few parts would cost from a local shop I could buy an entire sheet of material and make 5x the same parts...
I guess growing up reasonably poor made me put a high value on self sufficiency that I still carry with me.
Everything on my build to date has been made by hand probably for the same reason and there's a certain satisfaction in doing something completely by yourself.

But you're still probably right :lol:

Cnc isn't too far off - primarily it will be a Cnc plasma cutter which are fairly easy to operate and should increase my speed on other projects substantially- at least thats the plan.

Cheers

 

[Compoundbike]

Any news on this? I have been looking in to a Coaxial frame.

 

[Chambers]

Any news on this? I have been looking in to a Coaxial frame.

Thanks for the interest - a few things have been done since the last post - I'll take some pics this evening. currently waiting on parts that are on a VERY slow boat.

 

[Chambers]

A bunch of body work done Then some 'fancy' paint Still got to wet sand and final coat. Bunch of parts on order etc.

 

[Compoundbike]

Looks great I have been looking for the Cyclone Motor, but their Frame is so so... This looks much better.

 

[Chambers]

Looks great I have been looking for the Cyclone Motor, but their Frame is so so... This looks much better.

Thanks - it's just revision 1, once I have some time in the seat I have lots of plans already to make it better

 

[Buckow]

I’m looking forward to seeing this thing built up! Let me know if you need any help setting up the suspension. This thing is going to rip!

 

[Chambers]

I’m looking forward to seeing this thing built up! Let me know if you need any help setting up the suspension. This thing is going to rip!

Thanks me too :lol: - might be in touch about the suspension depends how it goes.

Thanks

 

[Bengy22]

Any update on this build? Like the other commenter I briefly looked at the elite frame but also wasn't quite happy enough with it. Your frame on the other hand looks awesome with a lot of thought put into it. Can't wait to see a test ride video with it all built out and running. And I know you said currently nothing is for sale and you would make a separate post if you did but thought I would let you know there is definitely interest in something like this. A dengfu e22 and a m620 would cost alone around $2k, something I've looked into but who wants 1700 watts when the cyclone can do 6700w 8) . I can say I would want to be first in line for one if you did sell them, although I can't say my wallet would be :lol:

 

[Chambers]

Any update on this build? Like the other commenter I briefly looked at the elite frame but also wasn't quite happy enough with it. Your frame on the other hand looks awesome with a lot of thought put into it. Can't wait to see a test ride video with it all built out and running. And I know you said currently nothing is for sale and you would make a separate post if you did but thought I would let you know there is definitely interest in something like this. A dengfu e22 and a m620 would cost alone around $2k, something I've looked into but who wants 1700 watts when the cyclone can do 6700w 8) . I can say I would want to be first in line for one if you did sell them, although I can't say my wallet would be :lol:

Thanks!

Life has been pretty busy lately but it's still ticking along slowly - I'll post an update when some real process has been made.