Date   
Re: Coupler stock

Jamison Amis
 

Ed,

I'd think that doing the castings "the old way" would likely lead to a greater possibility of yielding parts with notable deviation in dimensional tolerances, which could create serious operational reliability issues when you're talking about a precision miniature mechanism like a Sergent coupler.

A 3D Printer should permit tighter tolerances to be achieved on a much more consistent basis, nevermind that it would reduce the workload needed to make each individual piece.



Jamison Amis


On Mon, Dec 10, 2018, 3:48 PM Edward Sutorik via Groups.Io <Edwardsutorik=aol.com@groups.io wrote:
I understand how using the 3D printer works.  I just don't see how it's a necessity for producing investment cast coupler parts.  There IS the old way.

Ed

Edward Sutorik

Re: Coupler stock

Edward Sutorik
 

I understand how using the 3D printer works.  I just don't see how it's a necessity for producing investment cast coupler parts.  There IS the old way.

Ed

Edward Sutorik

Re: Coupler stock

Dale Buxton
 

TC
I only have one 3D modeled item on the internet. It's a coupler box for Sergent Sharron Couplers that uses a coil spring to center the coupler from the outside rear of the coupler shank. It's at the Shapeways Stores in my shop called "Lima Shops"

Dale Buxton

On Mon, Dec 10, 2018 at 9:41 AM Talmadge C 'TC' Carr <group_list@...> wrote:
Dale;
Where might one find your stuff on the overgrown web??
TCC:}
--
Talmadge C 'TC' Carr
Sn42 and Hn42 somewhere in the wilds of the Pacific Northwest

Re: Coupler stock

Talmadge C 'TC' Carr
 

Ed;
The 3D print is used rather than a wax.  From there proceed as normal.
TCC:}

--
Talmadge C 'TC' Carr
Sn42 and Hn42 somewhere in the wilds of the Pacific Northwest
group_list@...

Re: Coupler stock

Talmadge C 'TC' Carr
 

Dale;
Where might one find your stuff on the overgrown web??
TCC:}
--
Talmadge C 'TC' Carr
Sn42 and Hn42 somewhere in the wilds of the Pacific Northwest
group_list@...

Re: Not a Robot, and S Scale questions

Talmadge C 'TC' Carr
 

I never did answer this so here ya are.

To get a 3/4 coupler in "S" just use the H0.  At 73%  it is really close.
To backdate to a type D check the FAQ. <http://www.sergentengineering.com/FAQFuture.htm>
The H0 Sharon should be good as is.

The Type D was adopted in 1919.  As you do 1907 the Sharon should do ya.
--
Talmadge C 'TC' Carr
Sn42 and Hn42 somewhere in the wilds of the Pacific Northwest
group_list@...

Re: Coupler stock

Simon Dunkley <simon.dunkley@...>
 

Thanks.
Very cool.

Simon



On Mon, Dec 10, 2018 at 7:04 AM +0000, "Dale Buxton" <dbtuathaddana@...> wrote:

Yes, Those and some other things I've drawn. My hope is that I can print a 30ft freight car in the resin tank in one or two parts. All projects will far better detail than what Shapeways offers.

Dale

On Sun, Dec 9, 2018 at 11:53 PM Mike Conder <vulturenest1@...> wrote:
A photo cure printer for that price?  Very cool!

Are you going to try your coupler pockets on it?

Mike Conder

On Sun, Dec 9, 2018, 11:09 PM Dale Buxton <dbtuathaddana@... wrote:
It's an Elegoo "MARS". It arrived a day early. So if the resin arrives on scheduled. I might have my first print 30 to 45 minutes later sometime Monday.

Dale

On Sun, Dec 9, 2018 at 2:03 PM Simon Dunkley <simon.dunkley@...> wrote:
 Dale,

What model of printer was it?

Simon

-----Original Message-----
From: dbtuathaddana@...
Sent: Fri, 7 Dec 2018 22:16:02 -0700
To: sergentengineering@groups.io
Subject: Re: [Sergent Engineering] Coupler stock

Rob,
Are you aware that Sergent has put his designs into the public domain? He has has said he will work with anyone who is dead serious about moving his work forward after he is done. So worry not.

I don't know the process that Frank uses to go from resin to metal. But FormLabs has a new wax baring resin that substitutes for the wax used in lost wax casting. ( i.e. investment casting) 

The cost of SLA printers keeps coming down and detail that they capture keeps going up. 

I just bought an SLA printer off Amazon yesterday for $350 US. It arrives Monday. The size is just right for my modeling needs and the detail level (which is very high) is equal to the FormLabs, Form 2 printer. I am not a maker geek by any means. But once you get the hang of 3D cad drawing. A new world of modeling possibilities opens up to you with a 3D printer.

At some point in the future, someday, SLA printers (or something better) will be as common to a modelers work bench as an X-acto knife. 

The day is coming!

Dale Buxton

On Fri, Dec 7, 2018 at 8:34 PM roblmclear <rob.mclear@...> wrote:
What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie. 

Re: Coupler stock

Dale Buxton
 

Yes, Those and some other things I've drawn. My hope is that I can print a 30ft freight car in the resin tank in one or two parts. All projects will far better detail than what Shapeways offers.

Dale

On Sun, Dec 9, 2018 at 11:53 PM Mike Conder <vulturenest1@...> wrote:
A photo cure printer for that price?  Very cool!

Are you going to try your coupler pockets on it?

Mike Conder

On Sun, Dec 9, 2018, 11:09 PM Dale Buxton <dbtuathaddana@... wrote:
It's an Elegoo "MARS". It arrived a day early. So if the resin arrives on scheduled. I might have my first print 30 to 45 minutes later sometime Monday.

Dale

On Sun, Dec 9, 2018 at 2:03 PM Simon Dunkley <simon.dunkley@...> wrote:
 Dale,

What model of printer was it?

Simon

-----Original Message-----
From: dbtuathaddana@...
Sent: Fri, 7 Dec 2018 22:16:02 -0700
To: sergentengineering@groups.io
Subject: Re: [Sergent Engineering] Coupler stock

Rob,
Are you aware that Sergent has put his designs into the public domain? He has has said he will work with anyone who is dead serious about moving his work forward after he is done. So worry not.

I don't know the process that Frank uses to go from resin to metal. But FormLabs has a new wax baring resin that substitutes for the wax used in lost wax casting. ( i.e. investment casting) 

The cost of SLA printers keeps coming down and detail that they capture keeps going up. 

I just bought an SLA printer off Amazon yesterday for $350 US. It arrives Monday. The size is just right for my modeling needs and the detail level (which is very high) is equal to the FormLabs, Form 2 printer. I am not a maker geek by any means. But once you get the hang of 3D cad drawing. A new world of modeling possibilities opens up to you with a 3D printer.

At some point in the future, someday, SLA printers (or something better) will be as common to a modelers work bench as an X-acto knife. 

The day is coming!

Dale Buxton

On Fri, Dec 7, 2018 at 8:34 PM roblmclear <rob.mclear@...> wrote:
What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie. 

Re: Coupler stock

Mike Conder
 

A photo cure printer for that price?  Very cool!

Are you going to try your coupler pockets on it?

Mike Conder


On Sun, Dec 9, 2018, 11:09 PM Dale Buxton <dbtuathaddana@... wrote:
It's an Elegoo "MARS". It arrived a day early. So if the resin arrives on scheduled. I might have my first print 30 to 45 minutes later sometime Monday.

Dale

On Sun, Dec 9, 2018 at 2:03 PM Simon Dunkley <simon.dunkley@...> wrote:
 Dale,

What model of printer was it?

Simon

-----Original Message-----
From: dbtuathaddana@...
Sent: Fri, 7 Dec 2018 22:16:02 -0700
To: sergentengineering@groups.io
Subject: Re: [Sergent Engineering] Coupler stock

Rob,
Are you aware that Sergent has put his designs into the public domain? He has has said he will work with anyone who is dead serious about moving his work forward after he is done. So worry not.

I don't know the process that Frank uses to go from resin to metal. But FormLabs has a new wax baring resin that substitutes for the wax used in lost wax casting. ( i.e. investment casting) 

The cost of SLA printers keeps coming down and detail that they capture keeps going up. 

I just bought an SLA printer off Amazon yesterday for $350 US. It arrives Monday. The size is just right for my modeling needs and the detail level (which is very high) is equal to the FormLabs, Form 2 printer. I am not a maker geek by any means. But once you get the hang of 3D cad drawing. A new world of modeling possibilities opens up to you with a 3D printer.

At some point in the future, someday, SLA printers (or something better) will be as common to a modelers work bench as an X-acto knife. 

The day is coming!

Dale Buxton

On Fri, Dec 7, 2018 at 8:34 PM roblmclear <rob.mclear@...> wrote:
What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie. 

Re: Coupler stock

Dale Buxton
 

It's an Elegoo "MARS". It arrived a day early. So if the resin arrives on scheduled. I might have my first print 30 to 45 minutes later sometime Monday.

Dale

On Sun, Dec 9, 2018 at 2:03 PM Simon Dunkley <simon.dunkley@...> wrote:
 Dale,

What model of printer was it?

Simon

-----Original Message-----
From: dbtuathaddana@...
Sent: Fri, 7 Dec 2018 22:16:02 -0700
To: sergentengineering@groups.io
Subject: Re: [Sergent Engineering] Coupler stock

Rob,
Are you aware that Sergent has put his designs into the public domain? He has has said he will work with anyone who is dead serious about moving his work forward after he is done. So worry not.

I don't know the process that Frank uses to go from resin to metal. But FormLabs has a new wax baring resin that substitutes for the wax used in lost wax casting. ( i.e. investment casting) 

The cost of SLA printers keeps coming down and detail that they capture keeps going up. 

I just bought an SLA printer off Amazon yesterday for $350 US. It arrives Monday. The size is just right for my modeling needs and the detail level (which is very high) is equal to the FormLabs, Form 2 printer. I am not a maker geek by any means. But once you get the hang of 3D cad drawing. A new world of modeling possibilities opens up to you with a 3D printer.

At some point in the future, someday, SLA printers (or something better) will be as common to a modelers work bench as an X-acto knife. 

The day is coming!

Dale Buxton

On Fri, Dec 7, 2018 at 8:34 PM roblmclear <rob.mclear@...> wrote:
What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie. 

Re: Coupler stock

Rob Barker
 

Click "Instructions Etc"
Then "Click here for Instructions"
3D models are the last item in the list

Rob


On Mon, Dec 10, 2018 at 3:52 AM Kyle Shannon via Groups.Io <trainsr6900=yahoo.com@groups.io> wrote:
Where can one download the public domain files for the coupler designs? I thought it was on his website before but I cannot find it now. I want to see what I could do with them.

Re: Coupler stock

Simon Dunkley <simon.dunkley@...>
 

 Dale,

What model of printer was it?

Simon

-----Original Message-----
From: dbtuathaddana@...
Sent: Fri, 7 Dec 2018 22:16:02 -0700
To: sergentengineering@groups.io
Subject: Re: [Sergent Engineering] Coupler stock

Rob,
Are you aware that Sergent has put his designs into the public domain? He has has said he will work with anyone who is dead serious about moving his work forward after he is done. So worry not.

I don't know the process that Frank uses to go from resin to metal. But FormLabs has a new wax baring resin that substitutes for the wax used in lost wax casting. ( i.e. investment casting) 

The cost of SLA printers keeps coming down and detail that they capture keeps going up. 

I just bought an SLA printer off Amazon yesterday for $350 US. It arrives Monday. The size is just right for my modeling needs and the detail level (which is very high) is equal to the FormLabs, Form 2 printer. I am not a maker geek by any means. But once you get the hang of 3D cad drawing. A new world of modeling possibilities opens up to you with a 3D printer.

At some point in the future, someday, SLA printers (or something better) will be as common to a modelers work bench as an X-acto knife. 

The day is coming!

Dale Buxton

On Fri, Dec 7, 2018 at 8:34 PM roblmclear <rob.mclear@...> wrote:
What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie. 

Re: Coupler stock

Edward Sutorik
 

I think the Athearn trailer flats look more correct with the Sergent short-shank couplers.  

I am wondering at the need for a 3D printer to do investment castings.  It may be a convenience, but I don't see why it is a necessity.

I've done some investment casting.  NOT in quantity.

Ed

Edward Sutorik

Re: Coupler stock

David Olsen
 

Good to hear from your, Frank. I’m sorry you’re having frustrations with the printer. I’ve been tinkering with your couplers since the original silver castings days and love all of the advancements you’ve made with your product line. It sounds like I need to start offering some more financial support by buying couplers, but I unfortunately mostly need shelf couplers as a late ‘90s modeler. Your lower shelf Type E and F couplers are the most used versions in my fleet. However, I’ll find some uses for regular Type Es!

On Dec 7, 2018, at 06:13, Rob Barker <robkbarker@...> wrote:
Yeah Rob, the short Es are out of stock and effected.  And I *just* figured out how great the short shanks work with Moloco draft gear boxes :-(

Rob, I’ve also found that the short shank couplers look better in scale draft gear boxes like Moloco and Tangent. The regular shanks seem to stick out just a little too far, but maybe they look like they’re under tension in a moving train. I figured that it was because the pulling face matches the distance from the mounting hole of a Kadee, but the scale Sergent head is smaller.

Dave Olsen
Yorktown, VA

Re: Coupler stock

Edward Sutorik
 

Re: Coupler stock

Kyle Shannon
 

Where can one download the public domain files for the coupler designs? I thought it was on his website before but I cannot find it now. I want to see what I could do with them.

Re: Coupler stock

Edward Sutorik
 

What is the alloy that the investment cast couplers are cast in?


Ed

Edward Sutorik

Re: Coupler stock

Dale Buxton
 

Rob,
Are you aware that Sergent has put his designs into the public domain? He has has said he will work with anyone who is dead serious about moving his work forward after he is done. So worry not.

I don't know the process that Frank uses to go from resin to metal. But FormLabs has a new wax baring resin that substitutes for the wax used in lost wax casting. ( i.e. investment casting) 

The cost of SLA printers keeps coming down and detail that they capture keeps going up. 

I just bought an SLA printer off Amazon yesterday for $350 US. It arrives Monday. The size is just right for my modeling needs and the detail level (which is very high) is equal to the FormLabs, Form 2 printer. I am not a maker geek by any means. But once you get the hang of 3D cad drawing. A new world of modeling possibilities opens up to you with a 3D printer.

At some point in the future, someday, SLA printers (or something better) will be as common to a modelers work bench as an X-acto knife. 

The day is coming!

Dale Buxton

On Fri, Dec 7, 2018 at 8:34 PM roblmclear <rob.mclear@...> wrote:
What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie. 

Re: Coupler stock

Andrew
 

Rob,
Frank put the plans for the couplers in public domain months ago to insure that doesn’t happen. 

The couplers are not impossible to make.  This isnt new technology.  The problems will get sorted out.  

Andrew



On Friday, December 7, 2018, 10:34 PM, roblmclear <rob.mclear@...> wrote:

What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie. 

Re: Coupler stock

roblmclear
 

What concerns me most is that the couplers may disappear from the market if Frank can't get the problems with the printer sorted out, I have over 400 freight cars so converted to Sergents but have some real concerns at the moment, it would be a real pain in the you know what to have to go back to using Kadee's after the rather large investment I have made in regards to the Sergents but at this point in time it does not look to promising, I guess we'll just have to wait and see what Frank can come up with.

Regards to all.
Rob McLear.
Aussie.