May 23, 2018  Since I had finally gotten the worm carrier castings done, its time to start machining them and start building everything from there. I expect the build to start really picking up momentum now.

The Dividing Head & Deluxe Accessories [David J. Gingery] on * FREE* shipping on qualifying offers. The Dividing Head is also known as book 6 . The goal of this project is to build a dividing head from an inexpensive spin indexer and parts borrowed from the Gingery dividing head project. The main. I’m getting close to finishing a dividing head that is pretty close to the unit prescribed in Gingery’s Dividing Head and Deluxe Accessories.

Anyone know where to find these gears at that price? Inuyasha episode guide.

The set collar on the spindle has 3 radial screws as well difiding grab the spindle divoding. I’m not sure if more tpi or less tpi would be the best way to go. Every day I ask myself, “What’s the most fun thing to do today. I used this to make an tooth worm wheel. I wonder how well a home made worn and worm gear would work if by chance I could get the ratio at 40 to 1? Thus the blank was trued and sized right on its spindle.

The fingery has served well for jobs where the divisions come out to even ginhery values. The Gingery design is most useful as a rotary table. A site dedicated to enthusiasts of all skill levels and disciplines of the metalworking hobby. I have the start of the dividing head cast and machined here’s a couple of photos.

I used to work in the oil field and some giingery our meters had the worm gears in them of different types and sizes doviding now I’d kept some of the thrown away parts now. It rotates within the worm carrier by which it is attached to the frame. The above picture shows the major parts of the finished project.

I gashed the worm wheel blank using a slitting saw to form slots which will allow the acme tap used as a hob to grab and assure only 80 teeth. The Worm Wheel The required lead for the worm wheel teeth for my setup is at least 0. This all of the patterns I have made,only pattern left to make is the indexing plate pattern. A dividing head is an accessory for accurately and repeatably rotating a piece of work through a small angle, for example to rotate a gear blank by the angle of a single tooth.

I’ve toyed with the idea of making the gears myself but I don’t know if I can as I do not know how to cut the worm to the right hesd the worn is a 12 pitch and I know that 12 tpi is not digiding same, any ideas on that? I’d kept some of the thrown away Divifing might be worth a try. If your housings are sized according to the plans, you have little or no leeway to change the gears, you need a 40 tooth gear and worm of a pitch that fit the housings.

You could, of course, choose to work with any reduction, but The worm wheel has 80 teeth and a pitch of 0.

A less expensive alternative to a dividing head is a spin indexer, which can also be used to rotate work through a small angle.

Last edited by norman on Sun Mar 19, 3: The problem with dividing heads is that they tend to be expensive. Moltrecht ISBN v. I’d have to make it by either cutting a hob or using a tap to cut the worm wheel. The required lead for the worm wheel teeth for my setup is at least 0.

Gingery dividing head patterns _ Home Made Tools Pinterest Milling machine, Tools and Milling

The following photos show a few other vividing of the finished project and a 20 tooth gear cut using it. The leak happened because I didn’t plug a vent hole good enough.

The photo to the left shows a 20 tooth gear I cut using the dividing head and my vertical milling machine, just to prove to myself that dividkng works!

These are the 2 parts that leaked out no big deal I’ll just remelt them.

The idea of the dividing head is to accurately reduce a large rotation of the crank as measured by the fraction plate into a small rotation of the spindle. A good discussion of multiple threading can be found in chapter 13 of the book Machine Shop Practice, Volume 1 by K. Dividing heads are usually divlding with milling machines for making gears, reamers, etc. But the pair gingdry a 0.

It was made on the lathe at 5 TPI with the lead screw engaged with the thread dial at 1. You aren’t going to make a gear with a file and a dremel tool and a lathe isn’t a machine shop, only one machine tool. I then fastened the blank to the end set collar with 3 screws at degrees, slipped the thing on the 5C spindle mounted it on the 7×12 lathe between the 4 jaw chuck on one end and a 60 degree center held in an appropriate collet hiding inside a socket spacer on the other end.

The frame is made of a flat iron plate. The spin indexer spindle O. The main advantages of this approach, from my point of view, are that the large spindle bore of my spin indexer allows it to use 5C collets, and that the fraction plates and cranking handle from the Gingery dividing bead can be used with the new unit interchangeably.

I belileve that after you get done with that section you will, if you are a machinist to begin with, be able to make this gear set, if you have the machine dividiing to begin with, which you don’t as you will need a dividing head to manufacture any gear. The worm wheel, worm carrier, and fraction plate holder are PVC.

That is what a worm is and the gear that it runs with is a worm gear and that also has a helix angle to work with the worm. The photo above shows the side of the modified spin indexer with the hand crank and one of the fraction plates described in the Gingery book. The photo above shows an end view of the dividing head with a collet, the fraction plan holder, a plate, and the hand crank.

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On the left side is the unfinished casting that will be the index plate carrier. I have 5 parts in there Some times things don’t always go good I had 2 of the patterns leak out of the bottom.

I hope to be able to cast most of the patterns today. The worm gear is Delrin.