Skip to main content

I am working on a paper-plated tin replica of the Marklin Onion Dome station. Paper plating is something I have been using on tin in lieu of lithography or handpainting. I print the photos on high-quality photo paper, seal them and then glue them to a tin structure. The first step is creating the image files. This is easier if you can get straight on shots of the original piece. I was not so lucky in this case. I bought Photoshop to help me extrude and adjust photos to the right perspective. I then touched up flaws in the original, such as rusted areas or areas of paint loss. I then put the photos in a PowerPoint file where I have easier sizing and printing controls. I have completed most of the Photoshopping for this project. 

The next step in the project is to print low-quality prints and create a mocked-up structure to make sure everything fits. I then use the mocked up model to trace onto the tin that will make up the base structure. 

Here is a picture of the first mock-up attempt.

IMG_0211

The clock tower is still a little tall and the roof does not fit quite right yet. One of the hardest parts so far was finding the Onion Dome itself. What I found was a polyurethane architectural finial in the perfect size. The firm had a minimum order quantity, so I bought seven of them!  Let me know if anyone wants any. They are $8 each plus shipping.

One dilemma I have is what to do about the windows.  There are twenty windows in the station. Each has a mullion. The original had cutouts with a frosted patterned glass behind them. This allowed the station to be illuminated. I don't think I can cut the tin that intricately. I may be able to cut the photo-paper and glue a piece of plastic sheet to the back of the photo paper into the tin opening. Then, should I attempt to hand paint the designs, or just use a frosted plastic?

The last item is the corrugated roof over the Passage. I am searching for a large corrugated tin can to cut for this purpose.

I'll post my progress here as I go.

George

Attachments

Images (1)
  • IMG_0211
Original Post

Replies sorted oldest to newest

George, for cutting tin accurately, look at "sheet metal nibblers" similar to a scissor type hole punch for paper. Jaw length, depth, and shapes vary. There are also pnumatic driven nibblers. (peak around at automotive body repair sheetmetal or metal shop tools)

A Whitney Punch for heavier stock (hand held large c-clamp/w scissor action handles, various interchangeable die& anvil in each kit, many available overall singley)

Old school, hammer and chisels work well. For a pre-rolled round tower like that, a hardwood dowel (stair rail?), brass/ aluminum rod, or black pipe anvil. (each is progressively harder on your chisel blades )

If can also make/buy dies for punching using bolt threads to draw the die/anvil together for a few "special" cuts, more if you tool harden your homemade dies.(heat, heat & hardening powders, etc)

I think these types of metal tools might be a good investments for you long term. I think you might be a spectacle maker with a shop/bench full.

I really like the majority of your structural style choices; nice work so far as well. Thanks for sharing this one.

Thank you. Yes, I bought an Eastwood pneumatic nibbler. I still don't think I could cut 20 window mullions at that scale, but I'll see when I start cutting. I am going to try to cut the windows and then let the photo-paper be the mullion. I am going to rely on the power of the photographs for some magic to simplify the project. By the time I learned to be a master tin craftsman, I would have been better off buying the original!

I hope to make more progress this weekend. I'm going to repaint the onion dome in a lighter shade of gold. The bronze is too dark. I think I will make the tower out of brass. I have an extra sheet that should work nicely. I finally got the roof sized correctly, too.

George

Rough assembly of tin before painting.

5E12BE9F-58EA-4994-8969-4F1A9E2D761C

I almost drilled a hole in my finger making holes for pop rivets. I never did that before.

I decided not to cut out the windows. It's way to tedious and prone to error. The windows in the photos will look just fine, but I won't be able to illuminate it from the inside.

George

Attachments

Images (1)
  • 5E12BE9F-58EA-4994-8969-4F1A9E2D761C
Last edited by George S

I applaud your ambition, creative problem-solving, and skill.

Some questions/observations/suggestions/requests:

Re the mullions, I agree with not trying to cut the tin behind them.  Would it work to use heavier card or styrene to back up the paper mullions?

After you're done, would it be possible to share some details regarding tools and supplies that you found to be helpful (or not), along with links/sources?

Speaking as a glob-solderer who needs a LOT of practice, I'd like to see some inside views that show how you joined the pieces together.

Keep up the good work!

Mallard4468 posted:

I applaud your ambition, creative problem-solving, and skill.

Some questions/observations/suggestions/requests:

Re the mullions, I agree with not trying to cut the tin behind them.  Would it work to use heavier card or styrene to back up the paper mullions?

After you're done, would it be possible to share some details regarding tools and supplies that you found to be helpful (or not), along with links/sources?

Speaking as a glob-solderer who needs a LOT of practice, I'd like to see some inside views that show how you joined the pieces together.

Keep up the good work!

Thank you. Yes, I will share tools and supplies when I am finished. The issue with the windows are that there are so many and they require A lot of work and patience. The mullions would be impossible without a plasma cutter and then it would be virtually impossible to line up the photos with the tin. Even cutting the window frame out is difficult with such a small, tight curve at the top. I could have tried styrene or cardstock and cut the windows square. Also, the air nibbler is pretty aggressive and chews the tin on the curves. This is making me really appreciate the craftsmanship of Marklin. With the amount of time I am putting into this, paying $3500 for a station seems reasonable in retrospect, but this is fun for me. 

On soldering, I did solder the brass clock tower. However, I found it to be faster to pop rivet the rest of the pieces together. I'll take some pictures when the paint dries.  

I am having some trouble gluing the photo of the tower to the brass structure. The Super Glue is drying too fast and I can't get it aligned. I've ruined two photos so far. I am going to try Gorilla Contact Adhesive next for a slower set time.

George

George S posted:
I am having some trouble gluing the photo of the tower to the brass structure. The Super Glue is drying too fast and I can't get it aligned. I've ruined two photos so far. I am going to try Gorilla Contact Adhesive next for a slower set time.

Just a couple of thoughts, in case you haven't tried them... thick CA (more open time), move the parts into place, then hit it with accelerator, or adhesive caulk - haven't tried it on metal, but it seems to hold very well on hard plastic.

(Edit:  I misinterpreted the problem - thought it was for metal to metal adhesion.  Disregard for applying paper.  Sorry)

Last edited by Mallard4468

Try spray adhesive the kind (Michael's, Hobby Lobby) they use to affix posters to posterboard. Sets real fast and is permanent. You have to do a few dry runs before you use it or you end up with bubbles in the paper. There is also the issue of overspray. Google a few youtube videos on poster framing, ( every body has their own technique).

My best suggestion :

If you are not going to subject the model to lots of moisture ( southern climate) . Try wallpaper paste , stays  tacky long enough to move and set up and drys rock hard.

Last edited by justakid
Mallard4468 posted:
George S posted:
I am having some trouble gluing the photo of the tower to the brass structure. The Super Glue is drying too fast and I can't get it aligned. I've ruined two photos so far. I am going to try Gorilla Contact Adhesive next for a slower set time.

Just a couple of thoughts, in case you haven't tried them... thick CA (more open time), move the parts into place, then hit it with accelerator, or adhesive caulk - haven't tried it on metal, but it seems to hold very well on hard plastic.

(Edit:  I misinterpreted the problem - thought it was for metal to metal adhesion.  Disregard for applying paper.  Sorry)

I came across the thick CA as an option doing an internet search. I think it is called "403". I don't have any but may try that. I'm going to test the contact adhesive first. I used it before on attaching plastic to metal and it worked fine.

George

George S posted:

Here is some progress and a picture of the inside of the tin with a view of the pop rivets. These tend to stick out more than some I have seen.

George

Great progress George!

If it helps, I used to have a tinplate countersink tool made from a small screw clamp. The clamping pad on the screw section was removed leaving just the ball, and the base of the clamp had a shallow depression drilled in it creating a pocket for the ball. 

Drilling a smaller hole first, then re-drilling after you squeeze the spot with the clamp will help a little with distortion. End result; a countersunk hole for a pop rivet, even a countersunk pop rivet if you can find them. The high spot goes to the inside, out of sight. Trial and error should work its charm.

 

 

Straight edge it. Blot tips first and/ or create a raised inking ledge with tape under the ruler's edge. (like the slight above-paper-gap you saw with the metal strip on wooden school rulers. You need one of those old 3" Trix cereal kiddie rulers with the scalloped edge, quarter round end, and shapes templete  

Can you manage a continuation of the sandstone brick on those walls with a second overlay? Even re-do the ticket window ...or simply work in an arched hole to keep it.  If the wall were "busier"; with stone graphics and/or ticket sign or other ornate detail; things like that fade as imperfections; becoming character and style instead

On the Bertoia, at the eves on each end are two hooks; there for a roof rest while lighting a candle/lamp maybe?

Was there more to be added to this station?

It is looking awsome.

I kept thinking there was something that might be able to recreate the tower venting easily someday.... I'd seen it often, but couldn't place it until now...

  Glass air compressor traps/ filters and heat guard/ draft tubes on old torch/lamp heads, etc. often use a perforated tube about that size.

Junk table at the fleamarket stuff, Grainger, etc. Aluminum or tool brass, the latter more likely if old.

...someday;..maybe;....awsome fun already :)

Adriatic posted:

 

Straight edge it. Blot tips first and/ or create a raised inking ledge with tape under the ruler's edge. (like the slight above-paper-gap you saw with the metal strip on wooden school rulers. You need one of those old 3" Trix cereal kiddie rulers with the scalloped edge, quarter round end, and shapes templete  

Can you manage a continuation of the sandstone brick on those walls with a second overlay? Even re-do the ticket window ...or simply work in an arched hole to keep it.  If the wall were "busier"; with stone graphics and/or ticket sign or other ornate detail; things like that fade as imperfections; becoming character and style instead

On the Bertoia, at the eves on each end are two hooks; there for a roof rest while lighting a candle/lamp maybe?

Was there more to be added to this station?

It is looking awsome.

I kept thinking there was something that might be able to recreate the tower venting easily someday.... I'd seen it often, but couldn't place it until now...

  Glass air compressor traps/ filters and heat guard/ draft tubes on old torch/lamp heads, etc. often use a perforated tube about that size.

Junk table at the fleamarket stuff, Grainger, etc. Aluminum or tool brass, the latter more likely if old.

...someday;..maybe;....awsome fun already :)

You are right Adriatic. I should have used a straight edge and stencil. I tried to freehand it. I needed to get it done before assembly or it would have been too difficult to do inside the passageway. I think it looks OK. You're right that perfection isn't required. 

I omitted the hooks on the eves. Those are for optional station canopies. See this picture for an example.

IMG_3655

For the roof venting, I found some perforated tin at Ace Hardware. I'll post a picture later. I think it will work. While these roofs are vented like many German stations to allow candle lighting, I'm not sure if these were made for that. I saw one picture with a table and chairs in the Waiting Room. I think the venting, besides hiding the opening, looks like a Victorian era widows walk. Plus, there would need to be access to service the telegraph towers and fencing would protect the workers. Just guessing here...

My next quest is to find posts for the fence in front. The railing can just be brass rod. I searched doll house miniatures, but the scale was way too large. They may need to be wood.

IMG_0116

George

 

 

Attachments

Images (2)
  • IMG_3655
  • IMG_0116

Those flags make your's more festive. I fell asleep last night imagining an Easter Parade spilling out of the archway 

I like canopies, but think the size of those detract from the building a bit. 

Standard gauge handrail stantions and wire & cheap black wallmart jewelry chain ? (or model ship stantions?) I'm thinking the pre-made horizontal stantion holes would be worth it for skipping the driling into small roundstock; wood or metal usually drilling roundstock sides are a pita.

You are right again. I just drilled a brass threaded ball to make the internal railing. I think I will need six of them. Getting a bite on the drill tip is a pita. I used my vice to crush the side a little first. That made it easier. With wood, you can punch the drill spot first to create a seat for the bit. 

Thanks for your comments!

George

A little progress today. My perforated tin sheet did not work for the roof venting. The perforations were too large. Here is what I came up with. The perforated area is from a bicycle basket. I created a trim piece from brass and soldered the corner. I need to create a top trim piece then paint it. I also need to figure out a way to secure it to the roof so it can support the telegraph mast. I am leaning toward epoxy. 

8817178A-2B57-4FFE-9AE5-9C4FCC0F79E5

Here is how I am creating the fencing for the front of the station. The posts are brass finials for lamps. I cut them down a little. These will need to be painted as well.

3FAE84B3-8C1E-45A5-91FC-7A44D99A158D

I tried making the doors and tried to solder a brass rod to a piece of tin. That did not work. I may make the doors out of brass instead. It is easy to solder brass to brass. 

George

Attachments

Images (2)
  • 8817178A-2B57-4FFE-9AE5-9C4FCC0F79E5
  • 3FAE84B3-8C1E-45A5-91FC-7A44D99A158D
Last edited by George S

Add Reply

Post
×
×
×
×
Link copied to your clipboard.
×
×