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Slowly Losing My Mind
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Fantastic Spinman! I love the fluid motion of the system. I gotta build something like that one day. Have fun!
 

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Discussion Starter · #7 ·
Stupid Camera !!

I usually have fairly decent articulation, but for some reason this camera records me like I have mush in my mouth. The motor is a Pittman. It came from a machine my company produced. It is a 24 volt motor, but works fine on 12 volts for this application. One advantage of being a tech for a company that produces electro mechanical stuff !!!! Free parts !!! Just scored a computer. Also a nice 12 volt 9 amp power supply. It's good to be a tech sometimes.

Oh and the Axworthy worked flawlessly the entire night. It is fairly quiet as well. The only other thing I want to try for next year is to see if I can dye the line black.
 

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You used to be able to get braided fishing line in various colours including black - might be worth asking at your local specialist shop.
 

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Discussion Starter · #9 · (Edited)
Thx Fritz

I did a lot of searching for line on the web. The line I have is white with black as well. It is very thin. About the thickness of heavy thread, but flatter. It iis a braided line. I will do some more searching this year. I was going to try dyeing first, but I suspect nylon will not dye easily. I tried to dye the Dial Rolll On sockets and after two hours, they turned a medium grey.

ET I did some new searches, amd there is Black Dacron fishing line. Not cheap. 35$ for 200 lb test.

I will do a how to on this prop if anyone is interested.
 

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I can do a how to. What I am thinking is a how to based on common hardware everyone can find.
Spinman1949,

That would be great if you could do a How-To. I had an Axworthy Ghost running this year. In fact, it received the most compliments.

I used a Dayton motor, bike wheels, and 40 lb. fishing line. Some how, it work all night on Halloween but broke several times when I first tested it. My rig was also very noisy. I'm looking for ways to improve for next year. Any advice would be appreciated.

Dr. Frankenscream
 

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Discussion Starter · #13 ·
I will help as much as I can.

Spinman1949,

That would be great if you could do a How-To. I had an Axworthy Ghost running this year. In fact, it received the most compliments.

I used a Dayton motor, bike wheels, and 40 lb. fishing line. Some how, it work all night on Halloween but broke several times when I first tested it. My rig was also very noisy. I'm looking for ways to improve for next year. Any advice would be appreciated.

Dr. Frankenscream
When I designed my Axworthy I actually had never seen one. This dates back about 7 years. I never thought about using bike wheels. So from the very beginning I knew I had to use high tension to keep the line on the sliding glass door rollers I wanted to use. The sliding glass door rollers can handle a very heavy load and are well suited for this application. I use a bungee cord to pull the line very tight. It is attached to a swing arm that one roller is attached to. 40 lb line is not strong enough to deal with the tension placed on this line. I currently use 200 lb dacron line. It resists stretching as well.

As far as noise? Well if you stand under each roller you can hear it whirring, but overall at distance, it is relatively silent. I am a bit surprised that you hear anything from bike wheels, as they are obviously turning at a much slower RPM. My drive is fairly quiet with the Pittman Motor and the rubber to rubber drive. What I may try doing is use small pulleys with Oilite beraings.They could actually be quieter than the ball bearings the current pulley/rollers have. I was very surprised after replacing the drive roller plastic bearing with the oilite bearing that it ran totally cold..No apparent build up of heat. Keep in mind that I am a tech and I have some decent tools. I will do my best to design something that could be built with hand tools, but a drill press makes this project a lot easier. I will start on the how to when some time free's up.
 

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Now I gotta find some more details on this prop... I really look forward to your To Do.

I'm guessing it's possible to have multiple points/pulleys as long as tension can be maintained.

I also saw your 3 axis head prop (and 2 eyes)... Just floored, that is probably the best implementation I have seen. I'm not a big fan of talking heads, since they just don't seems especially fluid but this made me reconsider.
 

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Discussion Starter · #15 ·
Thank you !

Now I gotta find some more details on this prop... I really look forward to your To Do.

I'm guessing it's possible to have multiple points/pulleys as long as tension can be maintained.

I also saw your 3 axis head prop (and 2 eyes)... Just floored, that is probably the best implementation I have seen. I'm not a big fan of talking heads, since they just don't seems especially fluid but this made me reconsider.
I will be working on the how to re the small pulley axworthy in the next few weeks. I have quite a bit on my plate. I am also working on a new and improved 3 axis design, and I am playing with my 2 axis eye design to remove all geometric error.

Re the axworthy. Yes you can run any number of pulleys and changes in direction provided you maintain the tension. I should also add that the weight of the ghosts or ghouls in my small pulley design is restrictive. You will notice that the ghoulies are spaced apart to reduce the number that will be on any given stretch between pulleys at one time.

One addition to the axworthy to allow for more weight would be to add a lead and trailing pulley at 45 degree angle. Tricky because a guide will likely be required to stop a tangle, but doable.
 

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spinman1949 your axworthy is VERY impressive. Were you ever able to post a "how to"? I would love to see the detail behind how you did this. Thank you
 

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Discussion Starter · #17 ·
I totally apologize. I have been heavily involved in political issues and of course I lost a great deal of time re my 3 axis skull and 2 axis eye projects with the mfg who ended up wasting my time. Tell you what. I will work on a how to early this next year. I will see if I can utilize standard hardware. Maybe I will create a kit.
 

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Discussion Starter · #20 ·
To all interested in small pulley axworthy.

Would you prefer an AC or DC motor? It could be made with a sewing machine motor. Only problem is a DC motor is easier to control speed. The motor on my unit is a 12 volt DC Pittman motor. But they are expensive. I got the motor because I work on machines that have them, so easy for me to get for free. Could not do that in a kit. Speed can be controlled by the size of the drive oring, So I could offer different size hubs perhaps. So if you guys want a kit with an AC motor we can go that way. Then adjust the speed by using different hubs and orings. I found some 100 lb test black line. This is braided line. I can buy a large quantity and then supply like 300 ft in the kit. In general I would not try to span between pulleys much more than 50 ft. It is also very important to have very sturdy mounts. The only pulley not on my house is braced by a pipe. The unit ran flawlessly this halloween and very quiet.
 
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