Hello
I recently started playing around with DraftSight and I liked this french twin marine steam engine but thought it rather small. My boiler size is to be around 7" did. and I'd like to see this engine paired up to it with 1" bore/stroke. I first ran the mm dim's by converting to 1/16" to mm. So 10 mm would be 5/8" Then I divided !.0" by the .8125 bore to get a scale factor of 1.231. I plan to draw in this scale to produce the desired scale engine with 1" bores. I noticed that the dim. don't always work out to evan fractions, like the 1.615 for cylinder height I got. If I convert a mm drawing to a 1/16" english version, enlarging itI know, would I not be able to scale it up without running into bastard sizes that may compromise the build later. I may be missing something here, I'm not sure.
Any opinion appreciated, Thanks!
Johnny O
I recently started playing around with DraftSight and I liked this french twin marine steam engine but thought it rather small. My boiler size is to be around 7" did. and I'd like to see this engine paired up to it with 1" bore/stroke. I first ran the mm dim's by converting to 1/16" to mm. So 10 mm would be 5/8" Then I divided !.0" by the .8125 bore to get a scale factor of 1.231. I plan to draw in this scale to produce the desired scale engine with 1" bores. I noticed that the dim. don't always work out to evan fractions, like the 1.615 for cylinder height I got. If I convert a mm drawing to a 1/16" english version, enlarging itI know, would I not be able to scale it up without running into bastard sizes that may compromise the build later. I may be missing something here, I'm not sure.
Any opinion appreciated, Thanks!
Johnny O