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After a great deal of study, have come to the conclusion that the Dolchinkov/Nikolov/Nikolov/Latinovic equations for Hypocycloidal and Epicycloidal gear profiles, in "Synthesis of Hypocycloidal...

Enclosed is an Excel sheet with "Generalized Cycloid Drive Equations," for
generating "Epi" and "Hypo" cycloidal profiles in Alibre, by importing points and generating splines. They are NOT a...

:)

Georgebarr, From the Joong-Ho Shin paper, the "hypo" and "epi" profile are NOT a matched set. There are no corrections to the lobe peaks and valleys, as there are in the zincboy Python...

(I'll say yes...)
See the Alibre point import add-on by J. Renner on Alibre forum, add on programs topic. Can import 2D or 3D points, from semicolon delimited text file.

Can also do 3d points...

Revised the epicycloid excel generator program.
Created hypocycloid excel generator program.
(These two do not go together, they are two different profiles. Each will need to have additional...

Recent efforts to create a cycloid cam profile in Alibre
Untested
Notes on Cycloid Reducers. (Formulas correct in the PDF)
The profile pdf is not correct.

EDIT: Deleted Excel file to generate...

For software reversal, I believe that it is better to reverse in "Homing and Limits" in Mach3, rather than invert the dir.

Very sparse information here. The 4 common wires would connect together to the appropriate unipolar driver board pin, per its documentation.
Believe the gecko's are NOT unipolar drivers.
Make sure...

How about a Reset?

Reportedly, running the air cooled spindles too slowly, (edit: slow rpm) will burn them out fast/immediately, so check VFD minimum speed setting, to get adequate air flow.

Delete

robhrzic, apparently tuning is done in mach3. There are instructions on the artsoft forum. Also there is a yahoo Geckodrive group, but I cannot understand the postings. lol

I'm interested in this question too. Maybe post in electronic forum or gecko forum? I see an oscilloscope trace over at homeshopcnc, with current probe.

Having used my cutter exactly once, successfully, the following suggestions:Reboot.
Plug in cables. If USB to parallel, use your cutter software to select the proper USB/Plotter...

Thankyou bp092. There just are not any messages from joe on my msn email. I'm getting others from cnczone, paypal, microsoft, and yahoo though. I wonder if its because I'm over at the farm, with...

Hi Joe. Successfully received the plans @Yahoo. They look terrific. (Still am not getting any email from you at MSN--don't know why not) Thank You very much. Sincerely, bemfarmer

Hi Joe, re Hybrid CNC plans, would you please re-send them. I cannot find any email of them, not even in junk folder. Sincerely, Brian, [email protected]. Thats with an underline mark, not a...

Dear Joe, I sent the $75.00 by paypal to you back on March 4, 2008. I have not received any response from my emails to you, nor any plans, far as I can see on my email. Now, after the fact, I see...

I would suggest a bearing heater to slightly expand the bearing, but since I have never done this, perhaps there is someone out there who could explain how to go about this?

Is the full 5 volts available?

In Digital Machinist magazine, Volume No.1 spring 2007, and Vol2 No.2 summer 2007, there is a lengthy article on converting a bridgeport clone with rockford ballscrews. Reprints (800) 773-7798. ...

Very nice progress. I see the drawbar on the BobWarfield site www.cnccookbook.com/CCMillDrawbar.html. What about limit switches? Estop? Do you have to re-wire the mill?

Re: Screensize. Loaded Mach3 Version R2.41, licensed copy.
Select Config, General, CheckBox Hi-Res Screen, CheckBox Autoscreen enlarge, (lower middle of config screen). Reload screen, (a 1024...

Thank You

Nice online bearing site with ballscrew bearing info., Alpinebearing.com, precision angular contact bearings. (Found some inch sizes too.)
Maybe M20BS47, or NSK 20TAC47A?
The rockfordballscrew...

Digikey has rohs version. (they don't fit)
Mouser has several versions.
571-640621-5 is for 24 AWG, doesn't fit
571-59803-1, AMP Tool, 100T handle, doesn't work?
566-9536-100, Belden 24 AWG,...

Sounds good, robhrzic. I recently bought 72 volt servos and 48VAC toroid from homeshopcnc, for router or G0519 (R45 type milldrill), (someday).
What blades do you use on bandsaw? Speeds?
What type...

Very informative conversion. Is that a grizzly bandsaw?
Just ordered p4 fans and a PMDX module. Based upon the PMDX manual is a 56 volt toroid going to be too much DC voltage for the Gecko's?...

See www.technico.com. The rail is an SR15 rail. (NOT an HSR15) They show up on eBay. An SSR15 rail would be the same, the blocks just have spacers between the balls.

My guess is that the copper in the bronze became oxidized or sulfated, and is in solution. Since aluminum is more reactive than copper, the oxygen or sulfate transfered to the aluminum. Or some...