Parts for hand ergometer (exercise bike)

[JAZZCNC]

Thanks for your input.

I had considered machining it from the solid but thats a huge amount of wastage of a 65 or 70mm bar x ~350mm. Thats over £50 +p&p on ebay to throw 50% away! However if someone wants to provide the stock for free then I'm not proud

No problem if you want it from Solid Irving I can sort that, thou it will mean a slight delay has I have to get from a mate.

[FatFreddie]

The first drawings are for handles & crank assembly, others to follow. Ideally I'd like to get these done within next month. PM me if you can help.

Let me have the drawings for the gears if you have them (and still want them printed) - got a bit of spare time at the moment (but don't tell my boss that :-) ).

[irving2008]

Let me have the drawings for the gears if you have them (and still want them printed) - got a bit of spare time at the moment (but don't tell my boss that :-) ).

Hi,

Thanks - I still want to go with an epicyclic gear in the long run but the ratio I need to be safe on the design is nearer 4:1 rather than 3:1. So I've decided to go for a pulley/belt approach for v1 of this as was struggling to make it all fit plus the axle was getting increasingly complex - I need to prove the rest of the mechanism first.

I will revisit the epicyclic version in Mk2 as its neater overall, once I'm happy 3:1 will work.

Thanks for your efforts so far....

[FatFreddie]

Thanks for your efforts so far....

No problem, it's been interesting.

Let me know if you need anything printing for Mk1 (pulley covers etc).