Reply with QuoteNo need. Cut them 2 D. That is what I did.
Eric
balsaman,
I just downloaded the DXF files for clock1, but the files are all 2D graphs. How can I convert them to 3D solids so I can generate toolpaths?
No need. Cut them 2 D. That is what I did.
Eric
I wish it wouldn't crash.
free cnc clock plans
You can get free plans in dxf format from my website.
http://www.pathcom.com/~u1068740/index.html
gary
Hey woodman13 - Balsaman -
Any ideas on what changes are required to make a 24 hour clock version of the same setup?
Looking for 4 minutes per degree of sweep on the "hour" hand. It would be pointing to the Solar Grenwich Hour Angle (for those sailors/navigators out there) and the "minute hand" could sweep over the 4 minute period. Any idea on the changes in the gearing to do that?
Sort of surprised that that type of chronometer hasn't sparked some activity.
The "NET" - New Earth Time - is really the 'old' earth time.
cheers - Jim
Experience is the BEST Teacher. Is that why it usually arrives in a shower of sparks, flash of light, loud bang, a cloud of smoke, AND -- a BILL to pay? You usually get it -- just after you need it.
24 hour clock
A 24 hour clock should be easy to do.
It's just gear ratios.
On most clocks there is a shaft that turns once every 60 minutes. This is called the second hand.
A second shaft turns at a 12 to 1 ratio to this shaft. It makes one revolution every 12 hours and is refered to as the hour hand.
So you just have to increase the ratio to 24 to 1 and voila a 24 hour clock.
Hope this helps.
Do you mind if I add some of your pic to my website Balsaman?
gary
gary
feel free
eric
I wish it wouldn't crash.
Woodman,
I stole your "spokes" and added them to Brian laws gears for my clocks. Thanks!
Eric
I wish it wouldn't crash.
OK, I'm hooked!!
I just found this site a few minutes ago and already you have changed my assperations.
I'm in the process of building my CNC router/ engraver. Have all the bearings, ball lead screws, steppers and control board. Just waiting for my power supply.
You see, my wife collects clocks and, although I migrate to more creative things, her interests have rubbed off on me a bit.
Although I've seen this clocks before, I had never thought of actually making the parts and building one.
This is exciting (my wife is actually going to think that this 'hobby' is a pretty good idea).
You'll be hearing from me.
Thanks
Alex
HI i started one a gear clock out of a scroll saw mag from last year ,it is surpose to be a 30hr clock,my problem is cutting birch plywood nasty crap to cut .the 1/8 bits burn up quick ive tryed carbide & high speed steel .if any one has a ideal let me know ,im running a diy cnc router with a 1hp bouch router mounted with vcarve pro.ive played with feeds & speeds ,also single tooth bits to 4 flute carbide.mdf mite be the way to go ,cause you said somthing about only winding the clock to show some one it works.
Hi KLR,Originally Posted by KLR
I do my experimentation using cheap 5mm birch plywood from Home Depot. It has 3 inner plys of a relatively hard wood (possibly doug fir) surrounded by 2 very thin birch outer layers. True baltic birch plywood is much more uniform. All layers are birch, so it has less of a tendancy to warp. It also costs about 5X more, but overall the cost is small compared to the time invested.
I use cheap 1/8" 2 flute spiral upcut carbide endmills that I got from Enco for around $3-$4 each. They are probably rated for cutting metal, but they do OK on wood. I get better results with cutters designed for wood, but they seem to cost around $10 or more. I probably get around 30-60 minutes of cutting time per bit. The edges start getting really fuzzy when the bit starts getting dull. It takes a bit longer before it starts to burn.
I also use a Bosch Colt trim router. I cut around 30 inches per minute at a speed setting somewhere between 1/3 and 1/2 of max. I would like to make some adjustments to my machine to get the cutting speeds up to around 60 inches per minute.
Steve
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