Test

[Herding Cats]

Can you guy see and post here?

 

[Booze Daily]

Nope

 

[Mud]

I'm fine, how are you?

 

[Vancbiker]

Works for me. Good to see this addition.

 

[Garwood]

Thanks Paul!

 

[Charlie Gary]

I didn't study...

 

[Oldwrench]

Brilliant idea. If not for a dedicated forum, gearmaking info depends on a search. I for one am pretty tired of reading crap like how to "hob" a worm gear with a free-spinning tap.
I'd like to say right up front that the best information you're gonna get on gearmaking equipment is by visiting the website of a gear machine dealer. Shows what's out there and what it sells for (and sometimes by reading between the lines, why it's available).

 

[Kustomizer]

Brilliant idea. If not for a dedicated forum, gearmaking info depends on a search. I for one am pretty tired of reading crap like how to "hob" a worm gear with a free-spinning tap.
I'd like to say right up front that the best information you're gonna get on gearmaking equipment is by visiting the website of a gear machine dealer. Shows what's out there and what it sells for (and sometimes by reading between the lines, why it's available).

That sounds like a lot of work, I am more into the instant gratification of someone else doing that part for me even if the info they share is wrong

 

[Barbter]

I didn't study...

Hahahaha - beat me to it. I clicked the post sweating, thinking it was going to be a maths Q or sumfin....

 

[Oldwrench]

Whut...you mean like calculatin'? Sheee-it, gears is easy, you just gotta get ridda that clickin'...

 

[Mud]

calculatin'?

Is that like gozintas?

 

[Vancbiker]

……. I for one am pretty tired of reading crap like how to "hob" a worm gear with a free-spinning tap.……..

Hey, I made a gear for my wife’s pencil sharpener that way. Worked, for what it was. She thought I was a genius for fixing the damn thing. Probably spent 2 hours fixing a $20 thing. The reward was better than cash tho .

 

[Oldwrench]

 

[Barbter]

Hey, I made a gear for my wife’s pencil sharpener that way. Worked, for what it was. She thought I was a genius for fixing the damn thing. Probably spent 2 hours fixing a $20 thing. The reward was better than cash tho .

I've done the same thing to fix a couple of things....and used them a couple of times as a thread mill....works okayish #FarmyardEngineering providing you grind all the back of the tap away because there's not much clearance going on there....

 

[Oldwrench]

providing you grind all the back of the tap away because there's not much clearance going on there....

But the lack of clearance is the only way it stays in sync with the pitch. Shit, I just revealed I've done it too. But it was a LONG time ago and I was a different person.

 

[Barbter]

But the lack of clearance is the only way it stays in sync with the pitch. Shit, I just revealed I've done it too. But it was a LONG time ago and I was a different person.

Hahaha - the grinding of the back of the tap was for threadmilling!

 

[Oldwrench]

Yeah, I see that now, I just reread your post. My adventure making the worm gears with a tap started when the shop across the street got the job of making replacement parts for the remote actuators for large tilting window transoms in an old building. The parts were pretty worn out. He said the worms were 1/4-20 and he had already chased them and needed the worm wheels made. He figured my hobbers could do that. What he didn't realize was that gears are diametral pitch, and the "thread" pitch of a worm doesn't correspond to TPI like a screw. So we were stuck with that. I parted off a bunch of brass blanks, turning a .110 radius groove in the periphery, and set them one at a time on a hardened pin held in the toolpost (like holding a knurling tool only at right angles). Put a 1/4-20 tap in the spindle (used a drill chuck, no .255 collet), centered it eyeball and fed the blank into the rotating tap with the longitudinal handwheel. First few tries about half stripped. Tried various point tapers, finally found a sharp gun tap that would bite in just right to get the blank turning positively. Then fed it onto the tap til it got to making full-depth threads. By the time I had made all 12 wheels I had a pretty good rhythm going. The parts looked OK for what they had to do. The original worm wheels were pot metal and not exactly watch parts either so I didn't feel bad. At least they opened the windows.