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Docstrader valvegear simulation

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Granville Askham	07/03/2010 17:04:07
6 forum posts	I'm trying to refine a Walshaerts valvegear driving a slide valve for my latest loco. It looks good but the simulator will not allow me to come out of mid-gear. No matter what, it throws up a flag every time saying, 'Invalid floating point operation' Has anyone any ideas, please, I'm getting frustrated! Granville Askham
John Baguley	07/03/2010 20:35:05
517 forum posts 57 photos	Hi Granville, can't give you a definitive answer but I had this myself some time ago. I can't remember if it was with the Dockstader software or one of Bill Hall's versions. It's actually a windows error message, not the valve gear software. I did a search on the net for 'Invalid floating point operation' which came up with loads of results and suggested cures. I eventually found something that did cure the problem but I can't remember what it was Hopefully someone with a bit more computer knowledge might be able to point you in the right direction. John
Granville Askham	08/03/2010 07:59:10
6 forum posts	Thanks John, You pointed me in the right direction, it sounds like a job for my grandson! Gran

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