Is there a program that has some of the commonly used railroad items already included? is there a depository
of railroad images?
Thanks
Dick
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Is there a program that has some of the commonly used railroad items already included? is there a depository
of railroad images?
Thanks
Dick
Dick,
There are many places on the web that have models that you can download. Just search on 3d models. Here are a few. The models come in various stages of the design/print process and some have restrictions.
https://3dprint.com/24721/open-railway-project-3d/
https://www.cgtrader.com/free-3d-models/train
I use a freeware CAD package called FreeCAD It is a powerful parametric modeller. This allows one to use equations to define the relationships between the various dimensions of the model. By changing a few values all related dimensions will be changed to reflect the new values. There are many tutorials om YouTube show its use.
We have a Elegoo Saturn MSLA resin printer, Dremel 3D45 FDM printer, and an ANYCUBIC Photon S 3D Printer. We chose to receive our Jupiter printer in June. We figured they would have 5 months to work out all the bugs.
My nephew is running some parts for comparison between the Saturn and Dremel. When we have some pictures we'll post them to this thread.
Jan
The Elegoo Mars 3 specs say it has 0.035 mm XY resolution. This is the best that I am aware of. The rest are 0.05 mm. This printer is supposed;y shipping this month. I think I search YouTube for reviews.
Jan
Actually, most resin printers can print .01mm in the Z axis. Anything below .05mm in the X is icing on the cake. If you are looking to eek out that last bit of high resolution at home, better spend the real money and get a Formlabs one.
Sorry, I was referring to the XY resolution. The Z resolution is related to the layering that one may see.
Jan
another way to look at resolution is how it relates to scale.
actual 1/4" is 12" in scale
1/8" is 6"
1/16" is 3"
1/32" is 1.5" in scale. anything smaller is too weak or looks like an undefined blob.
so the smallest diameter of a handrail that can be printed is 1/32' but at that size unless supported will be way too weak.
also if those bolts are less than 1/32" or 1.5" diameter you need to test how your printer prints this small a detail.
What Alan is saying is very true. Resins are more brittle than the plastics used in our injection molding models. The resins are getting better, more ductile and flexible, but still have a way to go.
Jan
not really saying that; Resin prints are isotropic meaning strong in all directions; tube prints are weak vertically because they are printed in vertical layers where vertical layer adhesion is dependent on the relative melting cohesion of successive layers.
FormLabs has developed dozens of different resins that are far stronger and flexible than plastics used in tube printers. Take a look at the webpage Formlabs 3D Printing Materials Library
Their Resins are not brittle.
Sarah
I'd be fine with testing your print on my FL3 and you can see the differences. Just email me the .stl file from Fusion.
Or you go on the FormLabs website you can ask for them for a sample print with a specific resin type.
Alan
Well, you never would print a handrail. But, I have no problem printing rivets and bolt heads in O scale. That said, yes, printing it on a Formlabs machine would render better detail.
"you never would print a handrail" WAS that a challenge?
Challenge accepted. This was printed in a few parts 1) the base; 2) the handrails and stairs; 3) the piping as one piece; and 4) the handwheels. Also not shown are the 4 lights around the tank.
I remember that 20 years or so ago, when 3-D printers were first invented, it was announced with great fanfare that they would totally revolutionize manufacturing in the 21st Century, and that in short order, everything from your cars to pancake flippers would be made by 3-D printers.
It didn't happen. In my book, a real flop.
Good to hear that they may be of use in making train stuff!
Mannyrock
I still remember commercials on TV for the Arch Deluxe which began airing in 1996 but no amount of advertising could save this burger. It was an attempt to offer “upscale” product offerings but customers weren’t lovin’ it.
Ben-Gay is a strong brand because when you hear the word “Ben-Gay”, you immediately think of pain relief cream. But that is the problem and the main reason why this aspirin product never lasted. People just didn’t like the thought of swallowing anything relating to Ben-Gay.
Bic is a company that is well-known for its line of disposable razors, lighters, and pens. When the company released underwear, most consumers didn’t understand why and passed.
More failed products that probably looked good on paper but kids just didn’t understand the packaging or its instructions. Opening a box of cereal and pouring cold fresh milk in a bowl is so much easier and Kellogg’s later realized this.
If you love licking your fingers after eating Cheetos, you would think this product would be great. Unfortunately, it apparently didn’t even taste like Cheetos.
Colgate may be one of the leading toothpaste brands but consumers just couldn’t comprehend buying Colgate “food”. I suppose Colgate thought that by eating a Colgate meal, people would then brush afterwards with Colgate toothpaste but it was a bad idea from the start.
While soft drink companies are successfully selling water under different brands, Coors just couldn’t do the same with it’s rocky mountain water. When consumers buy Coors water, they expect it to be fermented with barley, hops, and yeast.
Sure, yogurt is a growing product category but when you’re a company that publishes 58 editions and distributes them to more than 100 countries, then Cosmopolitan should stick to what it does best. They did try to sell their own brand of yogurt but lackluster sales caused them to pull their failed products off shelves after only 18 months.
In the 90’s, people were were obsessed with clear products. Clear soap, see-through phones, and transparent soft drinks. Pepsi jumped onto the bandwagon by offering Crystal Pepsi but it didn’t last long.
Bob’s your uncle or so Microsoft thought. Bob was released who found Windows 95 intimidating since so many new customers were purchasing computers for the first in the mid-90’s because of this this thing called the “Internet” that started getting popular around 1995. Bob was supposed to help with simple tasks but it only made things more complicated so Microsoft didn’t create future versions of the software.
Sony may have been first to market with its Betamax in 1975, but the format wars began when JVC and Matsu****a released the VHS format and video player two years later in 1977. Because VHS was a licensed standard, any company could produce video players which drove costs down but because Sony didn’t license the Betamax format, its players remained expensive.
Ford has had a lot of success in its 100+ year history but the Ford Edsel wasn’t a model they could call a winner. It was called the “Titanic of Automobiles” and had disappointing sales. When Ford released the Mustang in 1964, it was a huge success and anybody that still had a bad taste in their mouth about the Edsel quickly forgot about it after driving a Mustang.
Back in 1974, Gerber wanted to expand their line of pureed meats, vegetables, and fruits to college kids or people that were living alone for the first time. Nothing makes you feel more like an adult than eating meat mush out of a baby food jar with a spoon. Needless to say, their failed products didn’t last long on the market.
I know what you’re thinking. What man doesn’t want to smell like a ‘Hot Road’? It’s understandable that Harley-Davidson owners want to own everything the company makes because the brand is legendary but loyal customers had to draw the line somewhere.
Ketchup is a difficult product to expand because customers are already happy with Heinz ketchup. There is only so many ways to improve ketchup but Heinz thought one way to expand the product line was by creating “mystery colors”. While kids may have enjoyed its grossness factor, it wasn’t enough for Heinz to keep it in their product line.
Failed products like this tablet from HP was far from being the “iPad killer” some tech magazines and websites were claiming it to be. It was based on a new operating system called webOS and had virtually no third-party support which is why retailers quickly had a fire sale to get rid of it as quickly as possible.
When Mattel decided to release a hipper version of Ken in 1993 featuring a mesh t-shirt, lavender vest, and one earring, it didn’t expect to get so much backlash. It drew criticism from the gay community for proposing false stereotypes and Mattel stopped production of the doll.
Life Savers may be one of Wrigley’s most successful products and the number one brand of non-chocolate candy but as a soft drink, it tanked. Drinking liquid candy just didn’t win over consumers.
Nobody likes soggy burgers so McDonald’s figured that if they could provide a burger that separated the cold condiments and veggies from the hot beef patty, they’d have a winner. It didn’t last long and it partly was because customers did not like having to assemble their burgers and making a mess.
Microsoft released the Zune almost five years after the original iPod and couldn’t make a dent in Apple’s 65% market share in personal audio players. It was discontinued in 2011 and Microsoft encouraged users to purchase a Windows phone instead but that strategy doesn’t seem to be working either.
When Coca-Cola released the “New Coke” in 1985, executives could probably hear their loyal customers around the world weeping every time they took a sip. After boycotts and protests, Coca-Cola quickly reintroduced the original Coke as “Coke Classic”.
The Apple Newton was ahead of its time and had great features but the only problem was, most of the features didn’t work properly such as writing recognition. The product may have initially flopped but it paved the way for the Palm Pilot, BlackBerry, and eventually the iPhone (ditched the stylus!)
Cola soft drinks have caffeine and so does coffee right? Pepsi thought they could no wrong by offering a soft drink you can drink in the morning but most consumers didn’t want to drink soft drinks morning, noon, and night.
The Segway is another great example of failed products that received tons of hype in the press but failed miserably when they were actually released. The company expected to sell anywhere from 50,000 to 100,000 units in its first year but it took them over two years to sell a meager 23,500 units.
These came out in 1988 and apparently “produced a smell and a flavor that left users retching”. Sounds great already! Besides the fact that they tasted horrible, rumors began circulating that they were being used by some customers as a delivery device for crack cocaine. The company quickly pulled them off the shelves.
In what could be considered a soft drink for pets, this daily pet drink had great flavors like Tasty Beef and Tangy Fish. While pets probably enjoyed it, pet owners didn’t see a need for feeding the pets with sugar water.
Olestra is a fat substitute that was approved by the FDA in 1996 and still approved to this day. These chips may cause stomach upset, cramps, gas, and loose bowels but they’re fat free! All kidding aside, consumers just weren’t ready for snack foods with a health disclaimer on every package.
NOTHING ABOUT 3D printers.
@Mannyrock posted:I remember that 20 years or so ago, when 3-D printers were first invented, it was announced with great fanfare that they would totally revolutionize manufacturing in the 21st Century, and that in short order, everything from your cars to pancake flippers would be made by 3-D printers.
It didn't happen. In my book, a real flop.
Good to hear that they may be of use in making train stuff!
Mannyrock
3D printing is still evolving, but it will still be a while before products can be cranked out as fast as conventional. manufacturing. However, 3D printing has found it's place in the prototyping process and for making master molds.
Rusty
I remember eating the Lays Potato Chips with Olestra, and being sick for 4 hours afterwards! (They should have tested in on prisoners first.)
The Segway was going to revolutionize foot travel throughout the urban world. The inventor actually donated the Patent to the public good. I guess he didn't think about how many curbs there are in the world. It could climb a curb, but it looked like a donkey trying to go up a set of stairs.
Alan, what does one of the 3D printers you are using for trains cost?
Mannyrock
MR- I only wish I could predict the futures of anything!
Look 3D printers are nothing like the STAR TREK replicators. If that's your idea of a non-flop then you are correct.
COST. the cost is not just the price of the printers and other washing, post-processing accessories and resin (Cost 2 Lionel BigBoys.)
It's the cost and time to learn a 3D modeling program, how to create a model for 3D printing (Sarah says that Fusion is intuitive) and setting up the model orientation in the printer's slicer program to correctly print.
WOW...Bic underwear!!! Where do you stick the pen...LOL! Anyway off track there.... Sarah, wonderful job with the 3D printer. There is a guy from Nebraska who I talked to at the recent St. Louis (Mo) RPM Meet in July, that 3D prints Behlen Grain Storage buildings in HO scale. I had him make me one in O scale...wow, what a big building, and the detail is great. Now he is going to make an add on kit. Yes, 3D printing can be a saver when you just cannot find parts commercially available. Keep up the great work!
Very neatly done, Sarah!
Can you send me a half dozen or so of those domes?
@Lee G. posted:Sarah, You continue to develop new model building skills with each of your projects as well as well refining existing skills. You are an inspiration. Thank you for sharing your work.
The scary part is she was way ahead of me on her first post here, how's a person to ever catch up!
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