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Discussion Starter · #1 ·
Hello.

Can anybody point me in the right direction please?

I want to purchase a brass worm to fit on to a motor I have. If possible I do not want to replace the brass gear on the locomotive axle. This is not a standard size as none of the old triang / Hornby worms actually fit. Believe me I have tried them all.

I looked at the Ultrascale site and was rather put off by the complexity and their 6 months to produce anything sort of attitude. I am not an engineer and couldn't see if any of the sizes on their web site would actually have done the trick. The measurements need to be so precise that I don't think I am capable of providing them so I want to find some help.

What I need is a supplier of brass worms - if there is such a thing - who I could send the motor and locomotive chassis to, with a view to see if they could supply a worm that fits the business.

I have over 300 motors so in theory the supply could be as many as 300 worms.

Any idea as to who I could contact would be most appreciated.

Andy
 

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Discussion Starter · #7 ·
Thanks everybody for the replies. I think my use of English must be wanting as I clearly didn't really explain myself properly.

The motors I have are to replace the old Hornby Triang X03/X04 motors. Unfortunately the height of the shaft from the base of the motor is higher by 1.5mm on these new motors so the existing worm will not do. I need a larger worm. I don't think the shaft diameter is a problem, I just need a supplier of a larger worm so I can find one that fits with the new motor firmly seated.

Does this make things clearer? I hope so.

Andy
 

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Discussion Starter · #10 ·
Thanks for your comments Richard.

I will revisit the height of the spindle as that was just an estimate at this stage. It is difficult to assess as it is within the wall of the chassis. It maybe less but the original worm doesn't touch the axle gear at all at the moment.

I will look at Markits.

I was hoping to find some Company who would take the chassis, an existing X04 for comparison and my motor and come up with a plan. This might have been new off the shelg gear and worm or specially made worm or both. My problem is not wanting to get the sizes wrong before I dive in and invest some money.

Once again, thanks for the 'heads up'

Andy
 

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Discussion Starter · #13 ·
Mike,

I am trying to sell 300 motors with an easy - hopefully quick - method of deploying the motor. My motor mount covers the attachment to the chassis problem as long as I can overcome worm / gear ratio size.

Andy

QUOTE (mikeg @ 17 Nov 2007, 11:09) <{POST_SNAPBACK}>Andy, have you thought about filing the chasis down to allow the new motor to fit, if it is narrow enough. I once replaced an XO4 motor with a flat can that was 13mm wide and just fitted. The chasis required about .75mm taking out if memory serves and I used araldite to fix the motor (not a good idea) but it seemed easy at the time. It worked for a while but the motor ran hot and the glue joint broke never did repair it as I moved back to O.

Though the above might help

regards

mike g
 
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