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New to Dalton lathes!

 

Hello!

I just recently purchased a Lot 4 Dalton Six (SN 2848, pictures here ) that is in moderately good condition. I am slowly cleaning and figuring out what work it will take to get it running again and I have a few questions I am hoping some of the people in this group can answer.

Any idea on the year of this lathe? My guess is late 1919 or 1920 but I haven't been able to find too much information on the serial number ranges.

Does anybody know the specs on the change gears? I realize that gears are probably hard to find so I will have to make my own but if anybody knows the pitch, pressure angle, or any other info on the gears it will make things a lot easier. This lathe has a bit of wear so I am worried if I take measurements off the gears I'll end up making something?sloppy.

Lastly, there is the same question but for the main lead screw. Mine is pretty worn and I know it's a 3/4-12 but I don't know if it's an acme profile or something special. I'd prefer to buy a spare if anybody has any around but I have a feeling I'll need to get a replacement machined. If anybody else needs a new lead screw maybe we could get a few made and split the cost.

Thanks for your time!

John
 

John,

Welcome to the Dalton Lathe group. In our files section there is a spreadsheet file named, "Known Dalton Lathes-Dennis Turk" that lists known Dalton serial numbers. Dates are somewhat guestimates, I believe.

However, I hope you hear from Dennis Turk about your lathe, since it is only 5 numbers away from yours (2843), and he is the real Dalton historian and general guru on these lathes here.

Dan
Glen Linscheid
 

thread cutting gears 24t x2, 32, 34, 36, 40, 44, 46, 48, 50, 52, 54, 56, 60, 66 & 96.

Most gears available from Dodge, PDF? shown online under "Files" at left side near the bottom. Some will require modification.
?Cheap way, if you have a mill and dividing head or rotary table with dividing plates, buy a cheap set of cutters the right pitch and make them yourself, depending on which is more available, your time or your money. I keep thinking the lot 4 gears are 14 pitch.
Glen
 

I completely missed the Files section in the group. Lots of good information there, thank you.

I have a dividing head setup for my little Benchmaster mill. It's actually a geared stepper motor and controller?where you can type in the number of teeth and it will calculate all the rotations. The benchmaster is too small to fit a regular dividing head.?

I think what I am going to try to do is actually 3d print the gears I will need, then cast them in bronze. It will probably be faster than cutting them on the mill and I can always use another fun project.

Time to dig through the files section! thanks a lot
 

I would love to see your process.? I have been doing some bronze casting and gears would be challenging. I assume you are going to cast them over size and then machine them.?
here are a couple of things I have made.? Right now I am trying to make 100 of the coins.? They are 2 in in diameter and I have made 50 so far.
coins.jpgdoor bell.jpg

Virus-free.


On Tue, May 18, 2021 at 5:51 PM John <jrburch@...> wrote:
I completely missed the Files section in the group. Lots of good information there, thank you.

I have a dividing head setup for my little Benchmaster mill. It's actually a geared stepper motor and controller?where you can type in the number of teeth and it will calculate all the rotations. The benchmaster is too small to fit a regular dividing head.?

I think what I am going to try to do is actually 3d print the gears I will need, then cast them in bronze. It will probably be faster than cutting them on the mill and I can always use another fun project.

Time to dig through the files section! thanks a lot
 

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very well done. ?Curious: what is the significance of the Sigil? looks ?sort of SAS like

On May 18, 2021, at 6:57 PM, D <dillonpapa@...> wrote:

I would love to see your process.? I have been doing some bronze casting and gears would be challenging. I assume you are going to cast them over size and then machine them.?
here are a couple of things I have made.? Right now I am trying to make 100 of the coins.? They are 2 in in diameter and I have made 50 so far.
<coins.jpg><door bell.jpg>

Virus-free.

On Tue, May 18, 2021 at 5:51 PM John <jrburch@...> wrote:
I completely missed the Files section in the group. Lots of good information there, thank you.

I have a dividing head setup for my little Benchmaster mill. It's actually a geared stepper motor and controller?where you can type in the number of teeth and it will calculate all the rotations. The benchmaster is too small to fit a regular dividing head.?

I think what I am going to try to do is actually 3d print the gears I will need, then cast them in bronze. It will probably be faster than cutting them on the mill and I can always use another fun project.

Time to dig through the files section! thanks a lot
 

I am actually planning to cast them with teeth and all using lost wax casting (similar to how you would make fine jewelry). 3D print masters using a sacrificial material, encase in plaster, cook out the positives while curing the plaster, then pour in the bronze while pulling a vacuum through the plaster to make sure it pulls into all the details. I don't know if it will work, but I have a lot of gears I need to make for a couple Craftsman 109 lathes I am fixing up so it will give me a lot of practice before I switch to the Dalton.?

I am going to make a set of 3d models for all the Dalton gears. Once I do we can add them to the group files in case anybody wants to try 3d printing them. It's a good way to make "single use" gears for when you need to cut one oddball thread.

John

On Tue, May 18, 2021 at 9:00 PM Grey Pilgrim <pilgrim23@...> wrote:
very well done.? Curious: what is the significance of the Sigil? looks ?sort of SAS like
On May 18, 2021, at 6:57 PM, D <dillonpapa@...> wrote:

I would love to see your process.? I have been doing some bronze casting and gears would be challenging. I assume you are going to cast them over size and then machine them.?
here are a couple of things I have made.? Right now I am trying to make 100 of the coins.? They are 2 in in diameter and I have made 50 so far.
<coins.jpg><door bell.jpg>

Virus-free.

On Tue, May 18, 2021 at 5:51 PM John <jrburch@...> wrote:
I completely missed the Files section in the group. Lots of good information there, thank you.

I have a dividing head setup for my little Benchmaster mill. It's actually a geared stepper motor and controller?where you can type in the number of teeth and it will calculate all the rotations. The benchmaster is too small to fit a regular dividing head.?

I think what I am going to try to do is actually 3d print the gears I will need, then cast them in bronze. It will probably be faster than cutting them on the mill and I can always use another fun project.

Time to dig through the files section! thanks a lot
Glen Linscheid
 

I also hviding headave an electronics controlled stepper driven dividing head, mines a HAAS CNC controller with Japanese RT, fitted by Haas long ago. It's a wonderful way to make gearing though not as accurate as hobbing. The steppers are getting weaker and weaker though and I need to find a place that? will replace the old Haas steppers with modern ones, I was told that much more powerful steppers are now also much smaller, if any here know of who could do this I'd greatly appreciate hearing of it.
?The way it is now I have to give it a little hand starting it's movement to each new division.
?BTW, it looks like there are a bunch of chinese controllers on ebay, I'd be willing to try assembling them and some new steppers if I knew what to use for each control and stepper.
 

Prior to my current job, I spent about a decade installing, servicing, and providing training for CNC manufacturing equipment. Waterjets, routers, five axis plasma cutters, lasers, knife machines, etc. I can probably help you out with choosing the right kind of stepper motor and controller depending on the application. I'm using a rather small stepper motor for mine but it has a 90:1 gearbox on it. Slow, but works for my low profile application.
Glen Linscheid
 

You are very kind John! I think I'm going to send it back to the last people who worked on it if they are still in business, as steppers is all they do, but thanks for the offer.


On Tue, May 18, 2021 at 9:25 PM John <jrburch@...> wrote:
Prior to my current job, I spent about a decade installing, servicing, and providing training for CNC manufacturing equipment. Waterjets, routers, five axis plasma cutters, lasers, knife machines, etc. I can probably help you out with choosing the right kind of stepper motor and controller depending on the application. I'm using a rather small stepper motor for mine but it has a 90:1 gearbox on it. Slow, but works for my low profile application.
 

Glen, The symbol is for the Green Beret Foundation.? They helped support our Veteren's?Memorial and gave us a flag that flew in Afghanistan.? We? will have a dedication ceremony?July 4th and the coins will be sold or given away at that time.

Virus-free.


On Tue, May 18, 2021 at 7:00 PM Grey Pilgrim <pilgrim23@...> wrote:
very well done.? Curious: what is the significance of the Sigil? looks ?sort of SAS like
On May 18, 2021, at 6:57 PM, D <dillonpapa@...> wrote:

I would love to see your process.? I have been doing some bronze casting and gears would be challenging. I assume you are going to cast them over size and then machine them.?
here are a couple of things I have made.? Right now I am trying to make 100 of the coins.? They are 2 in in diameter and I have made 50 so far.
<coins.jpg><door bell.jpg>

Virus-free.

On Tue, May 18, 2021 at 5:51 PM John <jrburch@...> wrote:
I completely missed the Files section in the group. Lots of good information there, thank you.

I have a dividing head setup for my little Benchmaster mill. It's actually a geared stepper motor and controller?where you can type in the number of teeth and it will calculate all the rotations. The benchmaster is too small to fit a regular dividing head.?

I think what I am going to try to do is actually 3d print the gears I will need, then cast them in bronze. It will probably be faster than cutting them on the mill and I can always use another fun project.

Time to dig through the files section! thanks a lot

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