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Woz
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 1:51 am 
Retro Guru
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Joined: Thu Jun 23, 2011 11:25 pm
Posts: 2746
Location: It's not easy being a dolphin.
Can it be spot welded in place and the bolts removed?
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old_coyote_pedaller
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 2:25 am 
MacRetro rider
MacRetro rider
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Joined: Thu Jul 30, 2009 4:56 pm
Posts: 2969
Location: A Fifer furth o' the Kingdom
foz wrote:
Only other thing I can think of is mounting the motor to a separate plate, than mounting that plate to the existing one, with holes that are further apart and out of the way.


My_Teenage_Self wrote:
The wheel in the pic needs to be 5mm from the frame, not the current 15mm.



This would be my solution, 2 birds with one stone. Mount motor on 10mm plate which would act as spacer, with existing bolts, then where bolt heads are enlarge existing holes in original mounting plate. Heads would be flush with original plate mount, no need to countersink holes. As said by foz above bolt new plate to original plate with bolts moved out of way of belt.
Unless there's something I've not thought of, very likely :facepalm: , this moves drive pulley in 10mm and bolt heads on motor are out of way, belt doesn't need to move in relation to motor.
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hamster
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 2:48 am 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 10426
Location: New Forest, UK
One final thought: is it possible to rotate the motor mounting angle to change the orientation of the bolts so that one (or better still two) is inside the loop of the belt and therefore not likely to touch the side of the belt?
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legrandefromage
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 9:10 am 
King of the Skip Monkeys
King of the Skip Monkeys

Joined: Wed Nov 07, 2007 4:34 pm
Posts: 33012
I use a countersink tool at work for this very reason with a DeWalt and its perfectly ok (the fact that I'm destroying £100k to £500k of vehicle never far away)

You could also try a hand tool if you're nervous

https://uk.rs-online.com/web/p/counters ... s_Whoop+(2)-_-456905&matchtype=&pla-308941987350&gclid=CjwKCAjw0On8BRAgEiwAincsHHrqMQ8hmQi7bilU846pumEw7T8mbaetTze1B9hwgS__YJK9yfvdWBoCIGoQAvD_BwE&gclsrc=aw.ds
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Woz
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 3:13 pm 
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Joined: Thu Jun 23, 2011 11:25 pm
Posts: 2746
Location: It's not easy being a dolphin.
...or forget belt drive altogether, and go on a thinner chain drive?

You could probably find some S/H fixed sprockets in the Road section :lol: :facepalm:
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royboy2cv
 Post subject: Re:
PostPosted: Thu Oct 29, 2020 6:31 pm 
Retro Guru

Joined: Tue Mar 20, 2012 6:19 pm
Posts: 682
Location: BOURNEMOUTH
Are you in Bournemouth? :facepalm:
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The History Man
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 6:34 pm 
GOLD | PoTM | Rider | rBOTM
GOLD | PoTM | Rider | rBOTM
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Joined: Tue Feb 26, 2013 6:26 pm
Posts: 22470
Location: Northest North Yorkshire. whippet real good...
Don’t mention Bournemouth.


I mentioned it once but I think I got away with it.
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foz
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 6:40 pm 
Gold Trader
Gold Trader
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Joined: Mon Jan 15, 2007 11:40 am
Posts: 4162
LGF has been there occasionally....
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mdvineng
 Post subject: Re: Engineers Assemble!
PostPosted: Thu Oct 29, 2020 6:45 pm 
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Joined: Thu May 17, 2012 11:04 am
Posts: 1049
Location: manchester
Low profile Allen will give you a head height of 7mm compared to the std 12mm ht
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royboy2cv
 Post subject: Re:
PostPosted: Thu Oct 29, 2020 6:48 pm 
Retro Guru

Joined: Tue Mar 20, 2012 6:19 pm
Posts: 682
Location: BOURNEMOUTH
Only asked because iam here , found a 25mm counter sink and have a small milling machine at home any help ?
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