bres
Active Member
Posts: 16
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Post by bres on Apr 23, 2011 13:03:38 GMT
Hi all,
Ive built my hornblocks out of ms 3/4 x 3/8 blocks 1 1/2" long as per drawings, making my horn blocks 1 1/2" high. Ive noticed the cast horn blocks are 1 5/8"high and higher on the Super Simplex. Has anyone else built them the same as me and did it cause any problems ? Is this one of the drawing errors you heard about?
Thanks ,Regards Giles
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redmog
Part of the e-furniture
Not Morgan weather
Posts: 461 
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Post by redmog on Apr 23, 2011 13:56:01 GMT
Never Noticed. Well, well. I'd never noticed. You're right. I've run my Simplex for 30 years and it's never been a problem. I built my Simplex just the same as you've done and never thought to look at the casting drawing. I've had a glance at it and unless I'm missing something; I cannot see why the dimensions are different. I would have thought that the 1/4" travel of the axlebox should be enough to take the undulations out of the track. Also, if the cast ones are used then the recess in the main frames would need to be larger because of the way the cast horns 'pocket' into them on the inner side. Chris. 
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russell
Statesman
Chain driven
Posts: 762
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Post by russell on Apr 23, 2011 14:22:43 GMT
Perhaps Martin Evans used horns from another of his designs? I have used the built up design and no problems are evident so far.
Russell.
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bres
Active Member
Posts: 16
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Post by bres on Apr 23, 2011 17:45:54 GMT
Thanks for your quick responses , panic over , I thought I had a problem on my hands . Regards Giles
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