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1  General Category / Suggestions for Future / Flywheels on: June 08, 2018, 08:04:33 PM
It may be possible to generate flywheels with Gearotic but it would be nice to have the direct capabilit y to layout flywheels equivalen t to those sometimes beautiful flywheels used on gas and steam engines. Fancy spokes, multi-level rims, etc.
2  General Category / Conventional Gear Cutting forum / Re: the dreaded internal gear.... on: November 27, 2017, 01:27:22 PM
If you use an early version of Gearotic, it will give you the outline of the cutter necessary to cut the gear. For internal gears, the tooth form is different from external gears so you cannot just use an external tooth form.

I've made internal gears by making a single tooth cutter and then shaping each individua l tooth. I used a milling machine to hold the cutter and push it through the brass (in this case) gear blank. Cut about 0.050" at a time IIRC. Rotary motion of the gear blank was via a Sherline digital rotary table which made it easy.
3  General Category / Gear Discussions / Re: Tool Wizard on: March 18, 2016, 08:46:35 PM
The context of your explanati on was in a Tool Wizard posting. I just cannot find it again.
4  General Category / Gear Discussions / Re: Miniature Taper Lock fittings? on: March 18, 2016, 08:01:48 PM
Understan d the CNC focus but Model Engineers, for the most part (us old guys) primarily use manual machines hence the care to explain how to do it right without a computer. The newer members of the community do use CNC as do I in a limited way.

A single nut is a good idea. I think I'll mention it to our clock-makers. The locomotiv e guys still use keyways.

The V-8 runs Sonoco Racing Fuel at 110 octane. Mainly because the automotiv e pump gas we buy in Californi a goes off in about 30 days and racing gas does not. Aviation gas is also popular for the same reason.
5  General Category / Gear Discussions / New Web site on: March 18, 2016, 06:22:03 PM
I visited your new Web site, Art. Looks good but there is on problem. The software does not detect the width of the display on the receiving end and the pages spread left and right off the borders. I tried this on two computers, Firefox on a small display and I.E. on a large display, both exhibit the same issue.

Probably just the newness of the code but there you are.
6  General Category / Gear Discussions / Re: Miniature Taper Lock fittings? on: March 18, 2016, 06:15:31 PM
I sent you the issue via SendThisF ile.com. Let me know when you receive it please.

This approxima tely 10 HP superchar ged V-8 model uses a taper lock on the flywheel if I remember correctly . THe engine is about 1 foot long, front to back.
7  General Category / Gear Discussions / Re: Miniature Taper Lock fittings? on: March 18, 2016, 01:06:24 PM
Not wanting to blow my own horn but I published an article on how to make taper lock bushings in issue # 11 of Model Engine Builder magazine. This type of mount for flywheels is frequentl y used (and made) by Model Engineers .

Tapers are always a bit tricky to cut because not only do the tapers, male and female, have to match, they must be cut directly on center or they will not have straight sides.

If you can find suitable locks, great. If not, contact me off the forum.


Mike
8  General Category / Gear Discussions / Re: Tool Wizard on: March 18, 2016, 12:13:29 PM
Art,

Another friend of mine wants to use the tool wizard (licensed user) and has a need for a tutorial on how the details of that wizard works.

Some time in the past, you detailed the wizard's workings in a posting on this forum. I found it last week but cannot find it today. Do you have a link to that posting that I can furnish him?

Thanks,
Mike
9  General Category / Gear Discussions / Re: Tool Wizard on: March 13, 2016, 05:21:54 PM
Thanks Art,

I will try both the Tool Wizard-made tool and the commercia l cutter.

I still like the Tool Wizard and it would be even more useful if it would also make single-tooth tools for use in a shaper. Many folks use their mill, lathe or even shaper to shape gears by shaving them with a cutter. I do recognize that I can use the generated gear tooth spaces to Boolean cut a tool shape for use in shaping.

Thanks,
Mike Rehmus
10  General Category / Gear Discussions / Re: Tool Wizard on: March 13, 2016, 12:06:45 AM
Art,
It may be what I am looking for but the use of a formed commercia l cutter such as these (http://www.amazon.com/Milling-Cutter-Involute-Cutters-Diameter/dp/B00J5ZRTLY/ref=pd_sim_sbs_328_6?ie=UTF8&dpID=51exa6GNqwL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_&refRID=0N24ECPCYGR1P86CVCG4) is not obvious in the list of choices.

Is SlitSaws the correct choice for a commercia l cutter? There is nothing to indicate this is so or am I looking in the wrong place again?

I think the Tool Wizard is of great use and don't mind creating specific tools for this purpose. It is good that I can run GM1 so I have access to the wizard. Before this, out of ignorance, I had used the gear shape as a Boolean cutter to develop a tool profile in 3D CAD although it was not so elegant as your wizard.

BTW, the Old Archive of Gearotic 1.0 (Click Here) on your Downloads page only gets the program .exe file, not the installat ion program so it is not useful I think.

I hope you will put the wizard back in the program.
11  General Category / Gear Discussions / Tool Wizard on: March 11, 2016, 11:01:16 PM
I cannot invoke the Tool Wizard by right-clicking a gear listed in the Project Tree. I am running V 2.30140 under Windows 7 Professio nal.

What am I doing wrong? What I really want to do is use a commercia l gear cutter and the 4th axis of my mill but I don't see anyplace to select such a cutter. I don't mind making a custom cutter for this but I am not able to do either.

Thanks for any help you can give.
Mike Rehmus
12  General Category / Suggestions for Future / Re: Hypocycloid Gear on: August 15, 2015, 12:07:03 AM
I would like to know if this capabilit y is in version 2. Harmonic drives are extremely expensive, even used for us amateurs. I'd like to build a 4th axis with this type of reduction .
13  General Category / Suggestions for Future / Computing Gear Cutters on: February 28, 2014, 12:38:30 AM
A very useful addition to this program would be the ability to make gear cutters, just the reverse of what it generates so well now.

I could see at least two really good uses for cutter generatio n:

1. Those cases where the gear teeth are so small that no milling cutter is small enough. A cutter could be made for exactly that gear and avoid the commercia l approxima tion cutters.
2. Those cases where it would be easier to shape the gear teeth.

I suppose that code to generate Hobbs wouldn't be bad either.
14  General Category / Third Party Software / Re: Geomagic Design 3D CAD on: September 02, 2013, 12:18:36 AM
Geomagic, the new name for Alibre is a much improved product.  3D Systems, the 3D printer company purchased Alibre, then purchased Geomagic and merged the two companies . I think the merger is good for we users.

I have used it for drawing miniature engines since 2006 and find it to be, generally, very capable and easy to use (given that it is a 3D CAD product).

The 2014 version is much improved as Geomagic has been able to put a lot more programmi ng effort into the product.
15  General Category / Support and Bug Reports / Malware identification on: November 27, 2012, 12:51:00 AM
I switched to WebRoot Anywhere after running Norton 36 for a year.

Recently, WebRoot identifie d the Gearotic exe file as containin g a malware program and removed it.

I did not make a note of the name of the infection but now, of course, I have no Gearotc software in operation as it deleted the exe file.

Anyone experienc e this before?
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