Machining the dogs for the drive gear on the Kearney and Trecker. I came close to RUINING the gear!

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The LAST bit of machining to get this drive gear usable for the K&T. after MORE THAN TWO YEARS! I can't believe I have had this thing for that long. And I nearly RUINED it!
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Пікірлер: 31

@MyLilMule

Breaking a tap is never fun. Ever. The drive dogs/keys I mounted to the back of the gear are not held in place only by the screws. They are also notched into the tapered tool holder. Is it the strongest connection? No. Could they shear off? Maybe, but I really do doubt it. It's something I will keep an eye on, but I don't anticipate that it will be an issue. Time will tell.

@chuckinwyoming8526

Greg, you need to back track a couple steps. Start again ! Make new drive keys, DO NOT mill them thinner, countersink 1/3 to 1/2 of the drive keys into the face of the new gear. The design in this video will not drive the universal head! It will shear the #10 screws off in the gear.

@thomasstover6272

Good video, Greg. Kinda lost count of the number of gears I’ve ruined…some reversibly, some not…nice job saving this one! Of course I have a somewhat endless supply!

@KevinToppenberg

The most horrible sound in the world is sound of a snapping tap. Ugggh!!! So glad you were able to get it out!

@HaxbyShed

Hi Greg, I liked the vice clamp and the super glue trick. The other commenter may be right that the dogs need to sit in a pocket on the back of the gear. Cheers

@Rustinox

Well I second what I read in other comments here. On the other hand if something goes wrong while using the mill, it will sheer the two screws instead of exploding the whole machine.

@thesjyoungjr

That click makes your heart fall through the bottom of your shoes. You want to say bad words, maybe throw things. But none of that will help the situation. So you go to plan b. You fix it. And go on. 😊😊 yeah 😂

@kooldoozer

Those little flat head screws holding the keys are going to shear in a New York second when you give it any torque. Why aren't you milling keyseats into he gear ? ? ? Be prepared to dig out those broken screws. --Doozer

@hilltopmachineworks2131

Any reason you didn't choose to cut a keyway in the gear and drive it with a key? I am worried those small screws are going to shear when a load is put on it.

@magnuscarlander2464

Don't You think it is a little weak with just two relative small screws transmitting all the force to the head? Don't You think the drivedogs should be sonken in the gear also?