Have you tried Autodesk Fusion 360? It’s free to download and free for a year under personal non-commercial use. It will open just about every 3D file I’ve seen. But I wonder if the Sergent files migh

The pivot point ( the post with the threaded hole where the coupler cover screw goes) on Blackstone cars is only the same diameter and tapper on the box and stock cars (same under frame). The gons, fl

You don’t have to have the springs in there you know. They are only there to keep the coupler in specific position for coupling. I personally don’t use the springs and they work fine for me without th

Maybe. I was kind of thinking the same thing. Question is, do you make it to scale with a scale size buffer casting opening or do you make it to a 714 clone width opening? Hmmmmmm... Dale Buxton

Ed, Funny you should ask about an after market coupler box for Sergent Sharon couplers in HOn3. Right now I’m working on a design to send to Shapeways to have them do in some kind of nylon. I’m not pr

I totally Agree with all of your comments. Dale

Thank you Jon, What an inovative and and useful idea. I just had an idea to add this. You could use some heatshrink tubing to attach the two instead of tape Dale Buxton

Well John, I know that Duncan has stressed over the lack of the self centering issue about Sergent's since he first got his hands on some. That, and the fact that they won't mate easily or automatical

People, people, people, I am struggling to figure out why it is so paramount to have a special self-centering coupler box for the Sergent RNB87K Sharon coupler. Am I missing something here? As already

Tim, I use one of two solutions. One, is to use the bottom half of a Kadee 714 coupler box. This half has the Kadee pivot pin with the screw hole in it. It is the same(ish) general diameter as the Ser

Jeff, let me ask you this, While the Accumate draft gear boxes look great and enhance the look of the cars. I found that they interfered with the truck swing on the MTL Reefers. They hung up on the ba

Those are the ones! This size is almost the same size as an HO scale Glad-Hand. Use the un-plated ones. The Nickel Plated ones are almost impossible to paint or glue to! Use "GOOP" cement. Its the onl

I model HOn3. I'm making my own magnetic automatic air hoses using 1mm dia. round, flat magnets I found on the internet from a guy the that calls himself "THE SUPER MAGNET GUY". I attach them with GOO

Hexavalent Chromium was the main topic of poisoning discussed in the movie "Erin Brockovich". PG&E, (Pacific Gas and Electric) once used it in some cleaning process in Natural Gas Production. After PG

Frank, Any projection on when the Sharon pilot couplers will be available? Dale Buxton

WARNING John! If your new layout has curves with anything less than 24" radius, the Accumate coupler box will not allow your cars trucks to swing all of the distance they need to make the curve. Been

As a side note here. On D&RG narrow gauge locomotives the couplers did not extend over the pilot cages prow. Meaning, that it was impossible to couple these locomotives pilot to pilot. The pilot prows

If you put the Sharon's that you mount on the brass tenders end beam in an old Kadee 714 coupler box, the pilot of the second brass engine behind it will NEVER have any through the train shorting out

Chris, Based on my research, there is only one maker of Neo-lube. It's a trade marked product. There are 2 versions, the one MicroMark and PBL sell is version #2. MicroMark sells its version in the or

Jon, I seem to be the one that started this whole Neo-lube thing. Yes, this is the stuff you can get from MicroMark or PBL. I think it's way better than the pencil lubrication trick. The stuff is micr