Monarch 10EE Lathe Gear Segment, Part 4: Grinding to Length and Drilling Pins 

you are right

Agree here. But I'm going to let Keith go on, and this may just become a learning experience for all.

I think Keith said it operates the forward and reverse switch on the long control rod

Your right, and why not drill out the hole's on both of them ? why leave it for the buyer? I would be up set if I got back incomplete work.

The part is just a lever. What he made will work perfectly. I own one of these machines and know the part well.

I, too, suspect that the location of the holes is relative to the gear teeth. If that is true, the recipient could just flip the new part over and repeat the same operation but with the teeth aligned.

When Keith takes the gear segment out of his lathe he will have a master for his lathe. I’m sure that is what he was thinking.

No.

@@paulcopeland9035 A gage pin clamped into the gear teeth during drilling will address this concern.

Then you can't put it in upside down.

I think this is the most important alignment for the pins. The relation to the teeth (engage or disengage at the right position. But, he got spares to drill ;-) Thank you Keith. Best, Job

I noticed that too, I think he had one upside down. Ooof. Not sure if it would matter though.

Since the part is semi-circular and rotates against another gear I doubt that it matters. Still, I would have felt better if the teeth were perfectly aligned.

@@ellieprice3396 The part fits into a gear rack cut onto a control rod. It moves the bar back and forth a short way to control reversing. There is no need for the teeth to be "perfectly aligned".

Probably not pending the teeth wear pattern duration. If the lathe had a none adjustable hard stop then perhaps. It would have been interesting to know the relationships of the bore, center tooth and .071" diameter holes. They could have been clearance for 1/16" diameter pins? If accurate timing was required they would have used a tapered pin. (Using one pin made of a softer material may have saved the original broken gear tooth being the weakest link)

...Unless the mating part is very difficult to change out. Then you want to make the part(s) Keith just fabricated the “sacrificial” part.

I noticed that too.

are you sure? looking at it, I think the wear of the old teeth vs new teeth is making look misaligned, when it isn't

Good idea, but getting the spacing from the center hole right would be a trick. Art

It is not important. I know this part well.

These machines are from the 40's and there are not that many left operating. Stocking parts would not be realistic nor profitable.

@@paulcopeland9035 You didn't read what I posted. Having a cad file allows them to make parts quickly as needed instead of stocking parts. I used a company that could make pulleys, gears, sprockets, splined shafts, etc on very short notice at reasonable prices on CNC machines. It's not like the old days when they had long setup times on several machines so they wanted to make several of the same parts at the same time.

@@tiredoldmechanic1791 "in these days of automated machining". Rest assured everything being manufactured now, whether for mass production or even one off custom builds.......likely has all aspects in CAD. But the issue of converting the out of production parts to CAD from archival drawings is that in a lot of cases there simply are no drawings available for a CAD conversion project. And, even if drawings are available, someone has to be paid to perform that procedure. Ultimately everything revolves around the concept of supply and demand, if there is no demand for a product, nobody will manufacture a supply.

@@larrywalker7759 They apparently have a drawing if they could give the guy a price on making one. People that are well versed in Cad can convert a drawing in minutes.

A stoker motor from an old steam locomotive restoration is the only reason you subscribed??

@@paulcopeland9035 Yes. It was the first video of Ruckers I saw and I was fascinated by it. I've been looking for the rest of the restoration.

I believe he mentions getting it from McMaster. A quick search finds www.mcmaster.com/metals/steel/cast-iron/

I think the Ginger part is the hair color!!!

"Ginger" is a good old British nick-name so it's all good.

You missed the video where he said he decided to keep the names the way they were because the cats were already used to them.

I own a 10EE, I know what it does, and what he made will work perfectly. This part is basically just a lever.

@@paulcopeland9035 I'd like to see that.

@@jtjjbannie The part fits into a gear rack cut on to a control rod. The action of the lever moves the control rod back and forth a short distance. Most importantly, he cut the teeth to match the original which will fit the rack. The teeth needing to "match up perfectly" is not required.

Correct, does not matter.