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studysession
01-06-2005, 06:44 PM
Anyone see the book:
Build Your Own Metal Work Shop From Scrap // The Dividing Head and Deluze Accessories (6)

If so has anyone tried to build this dividing head? I want a dividing head for making spur gears but do not have the money for one. I want to make some spur gears and need a dividing head to do it, but looking for a cheap solution.

I have this book infront of me and it looks very complicate to even try and make one of these. Anyone have experience with them and know where I can get a small dividing head for very cheap price?

Any help or guidance would be appreciated - thanks!

Attached is a picture of what I want to do. Cut gears on a mill like shown in the pic. But dividing heads are few hundred dollars and I just do not have that much to spend.

Swede
01-07-2005, 09:25 AM
The cheapest imports new are ~ $250. Have you checked eBay? Some good bargains to be had.

If you really want to build one, that's cool but it will be a challenge and ultimately it will still cost a bit for materials and such.

Simple dividing heads can be made with nothing more than a spindle and a gear on the rear with a finger/plunger which allows indexing via the gear itself. It'll need a spindle lock to prevent movement during cuts.

For example, if you have a 64 tooth gear on the back of the head, you can do any number of divisions within 64, for example 64, 8, 32, etc (it's early and I can't do math). Swap the gear out for other divisions. It won't have super accuracy but might work for a number of applications.

I think ultimately an eBay buy would get you going quickest. Gear form cutters aren't cheap either, unfortunately.

studysession
01-07-2005, 09:34 AM
Yeah - I have seen the 250 - 300 range online and think it is a bit expensive. Maybe I just have to wait a while.

It will be a couple months before having the cash flow to do much for a dividing head. Just trying to find the cheapest cost solution and figure out where to get the gear cutters I want. When I get it, I will want to cut Mod-1 and 48p gears. So will need the cutters for the different pitch and then for each # of teeth. The costs just keeps adding up. It is amazingly expensive.

HuFlungDung
01-07-2005, 10:47 AM
Study,
Have you priced out the gear cutters you'd need? These are fairly pricey, and chance are you'll need a different one for every gear tooth number you cut, unless they are very close in tooth number. There are 8 cutters in a set to cut all gears of one pitch. You might not need them all, but you might need three or four, depending on what you are doing.

studysession
01-07-2005, 11:20 AM
Yeah after all the reading and searching - I expect to need 2 or three different cutters for each pitch I want to cut.

Any link to places that have the Mod-1 and 48 pitch cutters? I am not sure how much they are. I have seen the dividing heads and they are expensive. But eventually I will get there, right now I need to learn more and need to price everything out to know for sure how much I need total for this.

Thanks!

DareBee
01-07-2005, 12:18 PM
You also are looking to make gears for a high speed app (according to your website) and you just cant cheap out on equipment to make gears of the caliber you need.
You dont want to have little bits of RC gearbox going through your race machine like shrapnell.

studysession
01-07-2005, 12:27 PM
True -
Yeah these gears are for a speed record breaking RC car. I would also make them for other cars as well. But right now my primary purpose if the speed car project.

So trying to figure out what are all the bits I need to make them - I would cut them on my mill. And how much is everything. I have seen the dividing heads but not the cutters on online shops.

Cheers -

HuFlungDung
01-07-2005, 12:55 PM
I applaud your tenacity, Studysession. You don't know what you don't know until you find out :)

http://www1.mscdirect.com/cgi/nnsrhm
type in "involute gear cutter" into the search field. Then type in your various gear cutter parameters. You'll need to know the pressure angle, cutter Dp, cutter number (from 1 to 8)

trilect
01-07-2005, 04:25 PM
Anyone see the book:
Build Your Own Metal Work Shop From Scrap // The Dividing Head and Deluze Accessories (6)

If so has anyone tried to build this dividing head? I want a dividing head for making spur gears but do not have the money for one. I want to make some spur gears and need a dividing head to do it, but looking for a cheap solution.

I have this book infront of me and it looks very complicate to even try and make one of these. Anyone have experience with them and know where I can get a small dividing head for very cheap price?

Any help or guidance would be appreciated - thanks!

Attached is a picture of what I want to do. Cut gears on a mill like shown in the pic. But dividing heads are few hundred dollars and I just do not have that much to spend.


The guy writes pretty good books, I'm actually building a lathe from his first book now. The stuff really isn't all that fantastic, building from his plans is really about learning to me and its a little fun.

studysession
01-17-2005, 06:15 AM
OK - I am at a point where I might be able to finally purchase one of these. ;)

Need help know what is the difference about so many dividing heads and which one is the correct one for me. And the same thing goes with the gear cutters too.

The gears that I am going to cut are anywhere from 1 inch to 4 inches in diameter. I want to start with Mod-1 and 48p gears. Later I will want to do other mod pitches as well.

What is the correct dividing head or what options do I need to look for?

Thanks for the help!

studysession
01-17-2005, 06:23 AM
Also what tool is to hold the gear cutter and how do I make sure I have the correct one?

I want to make sure I have EVERYTHING I am going to need to do this. I also need help with calculating the diameter of the blanks I will make for the gears. ;)

studysession
01-17-2005, 07:01 AM
I do not feel comfortable buying a used one off Ebay - As I do not know for usre it would be everything that normally comes with a dividing head so i am going to go new. For what I described above - I am hoping this one will do:

http://www.use-enco.com/CGI/INSRIT?PMAKA=203-4000&PMPXNO=953522&PARTPG=INLMK3

I am going to call the company and see - has anyone used it?

DareBee
01-17-2005, 08:36 AM
You need a stub arbour that fits your mill and the cutter, maybe even multiple arbours if your cutters have different bores.
FYI link http://www.kbctools.com/can/PDF/can0382.pdf

Make sure the arbour is long enough to clear your dividing head and get the cutter down to the centerline of your workpiece but as short as possible to maintain rigidity.

studysession
01-17-2005, 09:17 AM
AAUUGGHHH!!!!!!!!!

I wish things could be cheaper. I called ENCO about the dividing head. I did not relize if weighed at 46 lbs and it would cost $112.75 for them to ship it to me.

HuFlungDung
01-17-2005, 10:48 AM
Now you know why the rest of us are trying to make money from this stuff to support our "habit" :D

studysession
01-17-2005, 10:52 AM
I am trying to find best price on a dividing head -

Anyone with resources for places with better prices would be appreciated. When I look at the ones on Ebay what do I need to make sure of if I want to get one that can cut spur gears 1/2 inch to 3 or 4 inch dimater. Want to be able to cut 48p & Mod-1 pitch gears and later other pitches. Need to be sure if I got one off EBay, that it has all I need. I know I will have to get the cutters seperately.

Is there anything specific I should be looking at?

Thanks!

Ken_Shea
01-17-2005, 11:36 AM
studysession, I have seen stores on the net in the UK that handle dividing heads, surely you can get them there. Unfortunately do not recall where, but the link was here on the CncZone somewhere.

BTW, I checked the shipping cost to the UK, and I think they quoted economy surface, this takes 4-6 weeks and you can expect additional delays in customs, so if you must purchase from the US I would ask them about the mode of shipping and does it include insurance.

BTW, look at the "Swing" on these to determine the diameter you can cut, the one you looked at from Enco is 7 7/8" or 20cm :) so there is plenty of swing for your needs.

Ken_Shea
01-17-2005, 11:47 AM
studysession, you need to study more :)

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=633&item=3866743373&rd=1&ssPageName=WDVW

studysession
01-17-2005, 12:54 PM
I have have seen a few in the UK - and I saw that auction you posted. For reasons I will not post in a forum, believe it or not sometimes it is easier for me to get things from other countries than in the UK.

The shipping with price I was quoted - the item would have only takes 1 - 2 weeks, long as it is under 70 lbs.

I am going to email the guy in that auction to see if they usually have them. If I save a little more, I could get that one. :) But still need the cutters and stuff.

studysession
01-17-2005, 12:58 PM
I also found this today:
http://www.chronos.ltd.uk/acatalog/index.html?http%3A//www.chronos.ltd.uk/acatalog/Chronos_Catalogue_Vertex_Dividing_Heads_46.html&CatalogBody

Zoff
01-27-2005, 10:46 PM
Just go to Berry Bearing and forget it

Swede
01-28-2005, 09:28 AM
Don't neglect "older" dividing heads. Some of the absolute finest neat little DH's were made by a number of companies from the 1930's to the 1960's. Dividing heads are tough and unlikely to break beyond things that are fixable like the fingers and plunger tips, etc.

The UK is the Mecca of the hobby machinist / Model engineering world. If you look at an ad for lathes, mills, and tooling from a UK publication like Model Engineer, it is chock full of small tool yumminess, with lathes from 6" to 12" swing, bench mills, and yes older but high quality dividing heads. Here in the U.S., the typical dealer will have a dozen 15" LeBlond lathes for every lathe below 10". Quality "Western" Bench mills? Forget it. I guess what I'm saying is don't neglect used tooling. I'd rather own an L&S dividing head than one from China. Just MO.

studysession
01-28-2005, 01:27 PM
I am having trouble finding ones that will fit my milling table. All of them seem to be to big. My milling table is 240x145mm And travel being 180x145mm.

When I call places and ask about these dividing heads. They are all to big for the machine I have is what I am being told.

And what is Berry Bearing?

Thanks!

kong
01-29-2005, 05:37 AM
Continuing from Swede, I attended a model engineering exhibition in London just after christmas, and the place was like a gold mine for old stuff. Loads of chucks, vices, bits and bobs - I wasn't looking for dividing heads, so cannot say whether there were any there, but there probably was. Might be an idea to seek out the next exhibition and give it a go. At least that way you will have several re-sellers in the same place so you can see for yourself the differences in size and quality. Take some cash, and you can barter for the older stuff.
The more costly alternative is to get yourself a bigger mill! I own a 1950's Geo Taylor knee mill, but the table size is 18"x6" so the footprint is very small. The advantage being the increased z travel on these things. Most people are tossing these out for scrap, so the prices are low - mine was £230 on ebay!

studysession
01-29-2005, 06:05 AM
WOW! That is cheap.
Next year in 2006 - I plan on getting a new mill. Something much bigger.

studysession
01-30-2005, 10:12 AM
Anyone know much about this dividing head in the picture? It is one on EBay - I want to bid on it, but it does not have any dividing plates. The physical size, looks like it will fit onto my mill. How do I know what dividing plates I would need? I want to use it on my mill for cutting gears if I get it. But still trying to figure out what all I will need.

THANKS! :)