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| A Windless for Donfarr | ||
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Moderators: Winston, aew
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| Author | Post | ||
| mrshanks |
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  Registered Member #5745 Joined: Sun Aug 16 2020, 02:56pmPosts: 1285 | You guys ever wonder how you can take a simple photograph someone emails to you, ask for a couple of dimensions and a scale, do some silly things with a printer, and then turn that into detailed measurements that can be used for a proper CAD drawing? Well that is happening right now. The end result will be a 1:24 scale boxwood windless for Donfarr's long boat with laser etched carving lines on ALL 4 SIDES. How can that be possible? Stay tuned and see.  | ||
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| donfarr |
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| Registered Member #2001 Joined: Fri Dec 23 2011, 09:51pmPosts: 1853 | WHOA, WOW, OH BOY , THANKS MY DEAR FRIEND AMAZING, JUST AMAZING NEW TECH FOR A OLD HOBBY, WE CAN TAKE ADVANTAGE OF IT TO BUILD BETTER MODELS, THANK YOU MY AMAZING FRIEND. GOD BLESS STAY SAFE YOU AND YOUR ADMIRAL DON | ||
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| ClairG |
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 Registered Member #5747 Joined: Mon Aug 17 2020, 10:48pmPosts: 117 | Dude, outstanding!! Following along  | ||
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| DocBlake |
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  Registered Member #4496 Joined: Wed Oct 01 2014, 05:02pmPosts: 318 | Interesting! | ||
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| BrianC |
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Brian Registered Member #4262 Joined: Sun Aug 25 2013, 01:54pmPosts: 346 | Mike, can you scale that up to a different size ? | ||
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| mrshanks |
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| Registered Member #5745 Joined: Sun Aug 16 2020, 02:56pmPosts: 1285 | BrianC wrote ... Mike, can you scale that up to a different size ? Good question Brian. We typically design and draw the part in CAD in the largest scale we can with limitation. Typically it is 1:24 - 1:32 scale.. but that is not a rule. I call the original CAD drawing scale the "reference scale". So lets say we have Donfarr's windless... it is drawn in a "reference scale" of 1:24. Don asked me to fabricate his part in 1:24 scale. So I will be sending it to the laser as a 1:1 job. If you wanted the same part in 1:32 scale, or 1:64 scale... or ANY scale.. I simply have the software convert the drawings and we fabricate the parts. Easy. All the real work is "up front". It can take hundreds of hours do do a full ship drawing. The CAD drawings Dave Stevens sends me are absolutely HUGE. To assemble them into printed pages would take hours in itself. There are literally hundreds of parts in a scale ship... For an original design, whether taken from plans or sourced drawings... you still have to get them into CAD... Add to that tracing of old, barely legible monographs adds more complexity. Huge amount of manhours on a computer. Luckily - changing the scale on an existing designed part only takes a "few mouse clicks"... LOL [ Edited Sun Aug 30 2020, 10:42pm ] | ||
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| donfarr |
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| Registered Member #2001 Joined: Fri Dec 23 2011, 09:51pmPosts: 1853 | HI MIKE THE MORE I LOOK THE MORE AMAZED I AM. SOME HOW I CAN GRASP AND UNDERSTAND WHAT YOU ARE SAYING, I HAVE TO CRASH YESTERDAY TOOK TO MUCH OUT OF MEE FALLING ASLEEP AT MY COMPUTER THAT IS A NO, NO,,, LOOKING FORWARD WITH GREAT ANTICIPATINCE TO TOMORROW. GOD BLESS YOU AND YOUR ADMIRAL DON | ||
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| daves |
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| Registered Member #105 Joined: Wed Jul 15 2009, 12:01pmPosts: 3560 | Good question Brian. We typically design and draw the part in CAD in the largest scale we can with limitation. Typically it is 1:24 - 1:32 scale.. but that is not a rule. and here i am i dont follow the rule because when i am doing a drawing where i know the parts have to be broken down and nested on sheet stock say 3 x 30 inches i have to be working in the scale of the model that way i know how big a part is and how they fit on any given sheet of wood. | ||
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| mrshanks |
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| Registered Member #5745 Joined: Sun Aug 16 2020, 02:56pmPosts: 1285 | Right Dave.. Like I said... it is not a rule. Just in general we try to make our original drawing as large as possible. Then we scale down for fabrication to meet the size wood we have, or to meet practical limitations for kit size, shelf space, etc..... I guess what I am saying is... the CAD drawing can be in any scale and I can fabricate parts from that into any other scale without too much effort. Since I dont make high volumes, instead of thinking how many parts I can nest into a particular sheet of wood... I think about what size wood do I need for a certain size part(s)... kinda other way around... | ||
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| mrshanks |
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| Registered Member #5745 Joined: Sun Aug 16 2020, 02:56pmPosts: 1285 | Don took a photo of his windless from the plans of his model and emailed it to me. Then he told me the model was 1:24 scale and the windless was 4 11/32" long x 5/16" wide. So I took his photo into 3D paint and scaled it until it printed out exactly to those dimensions. From there I was able to extrapolate detailed reference dimensions for my CAD drawing. Here is the CAD drawing. When I send this to the laser with a 5/16" piece of milled boxwood, the black lines will cut the part out and the red lines will etch a very fine image into the wood. But that will only be on one side of a 4-sided part. How will I get the etching to appear on the other 3 sides, all in registration so the part can be shaped by hand?  [ Edited Mon Aug 31 2020, 06:59pm ] | ||
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