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Found this little gem - Schuchardt & Schuette Gear Hobbing Machine

W

WRebuild

Active Member
I never imagined I’d end up owning a gear hobbing machine, but when I came across this little gem, I couldn’t pass it up. This is a late 1920s Schuchardt & Schütte gear hobbing machine. These machines are quite uncommon—not just because they were specialized equipment at the time, but also because very few ever made their way to North America, especially Canada. Back in the day, more common models were available, and one that closely resembles this one is the Pfauter No.000 (there are great details on lathes.co.uk about this machine).
I'm now beginning the search for any literature, promotional material, or ideally a manual for this machine. If you have any leads or know where to look, I’d really appreciate the help. It’s now safely indoors and will make for a great winter restoration project. Until then, I’ll be collecting as much information and documentation as possible and look forward to sharing it all.
 

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Cool catch! cheap, I hope!

What did you get for gears with it? Those will really define what you can produce, if even enough to start making your own gear sets for cutting other gears. Have seen, in more recent times, guys 3D printing gears to use to cut metal ones, with some success, so that may be an option too. Nice thing about Hobs, is you only ever need one for pretty much the full range of gears you might fit on the machine.

Otherwise, you are stuck looking up the math, and sorting out the various ratios built in to your new toy. LOTS of coverage in Model Engineer over the years of various shop made gear machines, with a lot of math buried in the text.
 
trevj said:
Cool catch! cheap, I hope!

What did you get for gears with it? Those will really define what you can produce, if even enough to start making your own gear sets for cutting other gears. Have seen, in more recent times, guys 3D printing gears to use to cut metal ones, with some success, so that may be an option too. Nice thing about Hobs, is you only ever need one for pretty much the full range of gears you might fit on the machine.

Otherwise, you are stuck looking up the math, and sorting out the various ratios built in to your new toy. LOTS of coverage in Model Engineer over the years of various shop made gear machines, with a lot of math buried in the text.
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Thanks, Trev! I got it as part of a package deal with another machine, and I think it worked out well. It came with a small box of gears, which is definitely better than nothing, and they should be useful for cutting the first few gears. 3D printing gears is a great idea. I’ll need to look into which material would work best, since I’ve mostly printed with PLA, ABS, and PETG so far. Some of the newer filament options are pretty impressive, so a well-printed set might actually hold up for a good while.
I’m planning to put together a table of the change gears and their ratios, and see where that takes me. I’m not sure if the Pfauter No.000 is identical, but there’s a chance the gear setups are similar. A manual for that model could save me a lot of time on calculations. Have you hobbed gears before, or are you familiar with the process?
 
skippyelwell said:
Beautifully made machine, that will be a fun rebuild.
One question, a dipstick on the electric motor?
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I fully agree with you and I am excited to bring new life back into this machine. More pictures will follow when I start working on it! The electric motor is mounted inline to a 3-speed gearbox (Lo, Med, Hi), hence the dipstick. The motor speed is rated at 1725 and the gearbox converts to 310RPM, 620 RPM and 780RPM.
 
WRebuild said:
Thanks, Trev! I got it as part of a package deal with another machine, and I think it worked out well. It came with a small box of gears, which is definitely better than nothing, and they should be useful for cutting the first few gears. 3D printing gears is a great idea. I’ll need to look into which material would work best, since I’ve mostly printed with PLA, ABS, and PETG so far. Some of the newer filament options are pretty impressive, so a well-printed set might actually hold up for a good while.
I’m planning to put together a table of the change gears and their ratios, and see where that takes me. I’m not sure if the Pfauter No.000 is identical, but there’s a chance the gear setups are similar. A manual for that model could save me a lot of time on calculations. Have you hobbed gears before, or are you familiar with the process?
Click to expand...
Read much about the process, mostly related to a couple hobby tabletop sized hobbing machines that were published in Model Engineer over the last century or so of their output. Lots of fractional maths involved, most that I was not so very interested in, that I actually followed through the equations... I usually do maths while counting out loud on my fingers and toes. It's time to quit when my lips start to get sore... LOL! So no, no first hand experience, just enough secondhand knowledge to understand that I would want to be far more sure of myself, before plunging in...

I would suggest chucking a info wanted post on the practicalmachinist site, if you have not, as they have a pretty broad base of Euro folk that are pretty regular, and who may be able to point you off in the right direction, as well as pointing you at some pertinent reading material, or even an online calculator app that can set you up better.
 
trevj said:
Read much about the process, mostly related to a couple hobby tabletop sized hobbing machines that were published in Model Engineer over the last century or so of their output. Lots of fractional maths involved, most that I was not so very interested in, that I actually followed through the equations... I usually do maths while counting out loud on my fingers and toes. It's time to quit when my lips start to get sore... LOL! So no, no first hand experience, just enough secondhand knowledge to understand that I would want to be far more sure of myself, before plunging in...

I would suggest chucking a info wanted post on the practicalmachinist site, if you have not, as they have a pretty broad base of Euro folk that are pretty regular, and who may be able to point you off in the right direction, as well as pointing you at some pertinent reading material, or even an online calculator app that can set you up better.
Click to expand...
Thank you for the advice! I'm planning to gather as much literature as possible, along with general information on hobbing practices. I recently reached out to Schuette, who are still in business today, as well as the Museum of Technology in Munich, in hopes they can help me source some information.

I haven’t joined Practical Machinist yet, but I’ve used their forums in the past to read through older posts. I’ll definitely create an account and give it a shot. With more European-based users, there’s a chance I might come across something helpful. Any lead is better than none! I really appreciate your insight, and I’ll be sure to keep you updated once I start working on the machine.
 
Mcgyver said:
Oh man I must have one those ..... what is it exactly?

j/j

Congrats. Did you get all the gears with it, any hobs? I've got some small I might selling, like 80dp
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Thank a lot Mcgyver! It came with an assortment of gear, both small and large tooth counts. I'm not sure if they all fit behind the gearbox covers, but I'll have to see what's currently installed.
So far I only have one gear hob that is already installed...not a bad start (haha). I'll definitely need more hobs, but I'll see what I can make with what I have and go from there. I may be interested in your hob after I get this machine restored - I'll keep your offer in mind! Thanks
 
WRebuild said:
I bet you still have some room in your shop for a small gear hobbing machine somewhere...
Click to expand...

Who doesn't want a gear hobbing machine? :)

I've got a set of Jacobs castings somewhere and have always been interested in the various examples of electronically coupling the cutter and blank. Truth is though, I've rarely needed gears ..... although with the capability I might see the application everywhere. Last time a few months ago, I printed them with some good success, but the application was very low load and speed.

Keep us posted if you make some, that would be a noteworthy project .... I see a Eureka relieving attachment in your future lol
 
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