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1  General Category / Newest Rev Release / Re: Version 2.3015 on: July 21, 2016, 03:49:15 PM


 "Fertilize r, and motif are the two variables the user sets to generate one of them, fertilize r, is a setting for how
bushy it gets, and the motif changes the way the vines shape themselve s. Smiley, with lack of any proper terminolo gy,
I just make it up.. lol

Art


Sounds like bullsh?t to me    Cheesy
2  General Category / Gear Discussions / Re: Worm gear making on: June 09, 2016, 05:38:26 PM
Calculati on for a spur gear is number of teeth plus 2 divided by the DP of the gear to get the OD.

Same applies to worm gears but you add 3
3  User Video Links / User Photo's ( Show and Tell) / Re: Auggie Laser Cut Kraken on: April 08, 2016, 11:19:01 AM
Is it just me but that reminds me of the Mother-in-Law ?
4  General Category / Gear Discussions / Re: Miniature Taper Lock fittings? on: March 16, 2016, 07:53:47 PM
http://www.smallparts2.com/catalogs-files/Small%20Parts%20Inc%202003%20Catalog%2022.pdf


Page 303.

Other companies do similar, just this one was easier to find.
5  General Category / Suggestions for Future / Re: Worm gears on: December 14, 2015, 06:21:42 AM
Yes the helix angle of the pinion, lets just call it a wheel, is equal to the helix angle of the worm.
If you get a worm, or piece of all thread and offer it up to a spur gear it will sit canted to one side because of the helix angle.
To sit at 90 degrees [ normal setup for worm and wheel l the wheel will have to carry the same angle.



I think this picture off Google images shows it well.

6  General Category / Suggestions for Future / Re: Worm gears on: December 13, 2015, 06:29:36 PM
Art
Pinion I feel would be easy, it's a low helix gear with an additiona l z axis move in the centre.

I'll include this picture stolen without credits from Bob Whorefiel ds site as he steals everythin g and credits no one  Grin



It would be easier using a vee cutter and as most pinions / wheels are done in a soft material i single flute cutter similar to an engraving cutter could be used. After all the most common angles would be 20 and 29 degrees or 30 for the trapezoid al guys in EU land.

Worms them selves are just screws so using anything other than a lathe is just an exercise in getting a good spanking [ mind you that's not bad at the right hands  Shocked ]

If you were serious though it's simple job to hand write a code and mill one with the exact same cutter, or Gearotic could even spit the code out given you fill a few boxes in.

This was just a test once to see how easy iy would be to do a square thread.

7  General Category / Suggestions for Future / Re: Worm gears on: December 13, 2015, 09:53:23 AM
Only problem with this method is, as the tap starts it's running on the OD and it will generate OD*Pi / pitch of tap which will be totally different from the Pitch circle * Pi / pitch of tap.
Many people using this method say it's a toss up on how many teeth you finish up with. Many pre gash the number of teeth they want with a slitting saw to ensure they get the correct number they need.

I used to hob worm wheels on a hobbing machine, full envelopin g wheels, 40 T or 60 T and the odd time I forgot to fully tighten the blank it finished up being driven by the hob and not the machines with 42 or 43 teeth of incorrect form being cut.  Wasn't bad on a 60T wheel as it could be saved and made into a 40T but a I really wanted a market for 30T wheels to use up the scrap 40's :-)
8  General Category / Gear Discussions / Re: V-bit doesn't work?! on: October 23, 2015, 08:31:06 AM

 Gearotic 1.0 used involutio n to calculate
a tooth, it could actually have done the job, trouble is it was good only for involutes, no other shape.

 
Art

I really loved Gearotic 1.0
Pity it couldn't have co existed alongside 2.0 as all many want to do is just involute teeth.
No fancy tickers, let the Lucas Pacemaker take care of those   Cheesy
9  General Category / Gear Discussions / Re: New to board and I have a problem on: October 05, 2015, 01:04:07 PM
If you are going to use a form cutter you need a 32DP, 20 degree PA, No#8 cutter
10  User Video Links / User Photo's ( Show and Tell) / Re: smallest helical bevel gear Ive made. on: September 11, 2015, 03:56:57 PM
Or find a nice short drill with large taper and turn the taper down into an R8

That don't half pi$$ the Bridgepor t off !!

11  General Category / Auggie: Augmented Machine Controller / Re: Auggie Early posts on: August 23, 2015, 06:04:50 PM
Could it ever do lathe threading ?
12  General Category / Suggestions for Future / Re: Computing Gear Cutters on: July 18, 2015, 07:06:29 PM
The code is nearly there.

On the DXF of a gear  is the shape of the cutter, just delete the gear and put the shape thru a CAM program to get your cutter.
13  General Category / 3d Printers Discussion / Re: STL Import into Cura are ten times larger than intended on: June 16, 2015, 04:17:12 AM
Only the BBC and dressmake rs use centimetr es.
14  General Category / Gear Discussions / Re: Problem Encountered; need advise on: May 19, 2015, 05:37:22 PM
Will this do you Harold ?



Ticks all your boxes and looks like the original.
You need a shift of 0.6 and 0.6 on the width.

15  General Category / Gear Discussions / Re: Gear milling with wide circular mill (looks like flat end mill shaving in GM) on: May 18, 2015, 04:12:04 PM
Spotted this on the last trip over to China.
Gear grinding using the flat side of a tapered wheel.
The gear is rolled in relations hip to it's DP or MOD, what is interesti ng is that it's rolled along an inclined plane equal to the PA of the gear.

https://youtu.be/PVEEhYiOUuE
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