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3D Printing For Parts

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  • Member since
    October, 2016
3D Printing For Parts
Posted by CanesBart on Friday, February 17, 2017 5:08 PM

A freind just sent me a 1/56 1951 Ford Truck, and a 1969 Charger he made on his 3D printer.  For miniature wargaming in 28mm (1/56 scale).

He made 30's and 40's cars, like Mercs and  such, for his "Pulp" wargaming that are frankly fantastic.  

They are solid, but look spot on, even the grille, windshield, trim detail and such.  Amazingly good looking.  Haven't recieved 'em yet, just saw the pics he sent me.

He has already printed out very detailed 1/56 figures, including a Dirty Harry, Ash from "Evil Dead" and a Shaun from "Shaun of the Dead", so I know you can get fine detail.  

Has anyone 3D printed a part for a 1/25 model?  

Mein gott!  If you can print out say, a grill, hood or wheel this way, it HAS to be more efficient han sculpting a prototype then casting in resin?

I am amazed by the quality.  Never paid much attention to it before, figured it was like a vacuform, limited to basic, simple shapes without too much concave curves or detail.  

 

He says the trick is in the digital design.

  • Member since
    December, 2003
  • From: Nova Scotia
Posted by Bainford on Saturday, February 18, 2017 12:48 PM

A few months ago we got a 3D printer in our office at work. We have been working with it a bit trying to tweak it and figure it out. We have been printing off models of submarines and are starting to have some success. Once the models are printed of I take them home and assemble & paint them, and they are looking pretty cool. I have an LA class bomber on the bench right now. So far our print files are ones that we have found on line, but a draftsperson in the office is drawing up files for printing a detailed model of the Canadian navy subs. It's taking some sorting out as we try to work around the limitations of the machine, but we are making progress. 3D printing is something that will be a large part of the future of plastic modelling.

Que the Vikings: "Spam Spam Spam Spam Spam Spam Spam Spam ..."

  • Member since
    December, 2007
  • From: Portland Oregon: Tree Country. Most beautiful area on the West coast.
Posted by Treehugger Dave on Saturday, February 18, 2017 1:50 PM

While I'm not against 3D printers, and do think they will make a very nice new "TOOL" in our arsenal of "TOYZZ", I myself see several things possibly being lost in the hobby.

Before CNC machining came along, Tool making, custom machining and pattern making were more of an "ART-FORM than a "Science, as it took skills not required in CNC work.

There was more pride in your work, as there were different levels of skills needed to qualify for a position, and be qualified to produce items from a blue print.

Now people just program a machine and walk away and the machine makes as many as you want.

I have already seen people making entire cars and kits on a 3D machine, and while this is great for all of us who want something that isn't mass-produced, and don't have the skills to scratch-build a non-existant model, I can see contest and rules changing quite a bit when everything that is really good was created by a machine, and all that's left to judge is finish, paint, detail and assembly. Maybe there'll be a separate class.

For me what would be lost as a scratch-builder is the pride of using the disciplines I have acquired over the years to create a part, or create a body by hand and the sense of accomplishment I get from a hand crafted part or entire finished model

Eventually I will probably buy one, but limit the usage to "Novelty", as staying a craftsman and using my skills that took years to develope, allows me to keep enjoying the hobby for the reasons I was first attracted to it.

Old School and New School meet somewhere in the middle CoolThumbs Up.

Love Velocity channel, Mecum Auctions and Barrett/Jackson auctions.

I learn so much there.

 

 

                                     

 

 

  • Member since
    October, 2016
Posted by CanesBart on Monday, February 20, 2017 4:38 PM

Treehugger Dave

While I'm not against 3D printers, and do think they will make a very nice new "TOOL" in our arsenal of "TOYZZ", I myself see several things possibly being lost in the hobby.

Before CNC machining came along, Tool making, custom machining and pattern making were more of an "ART-FORM than a "Science, as it took skills not required in CNC work.

There was more pride in your work, as there were different levels of skills needed to qualify for a position, and be qualified to produce items from a blue print.

Now people just program a machine and walk away and the machine makes as many as you want.

I have already seen people making entire cars and kits on a 3D machine, and while this is great for all of us who want something that isn't mass-produced, and don't have the skills to scratch-build a non-existant model, I can see contest and rules changing quite a bit when everything that is really good was created by a machine, and all that's left to judge is finish, paint, detail and assembly. Maybe there'll be a separate class.

For me what would be lost as a scratch-builder is the pride of using the disciplines I have acquired over the years to create a part, or create a body by hand and the sense of accomplishment I get from a hand crafted part or entire finished model

Eventually I will probably buy one, but limit the usage to "Novelty", as staying a craftsman and using my skills that took years to develope, allows me to keep enjoying the hobby for the reasons I was first attracted to it.

Old School and New School meet somewhere in the middle CoolThumbs Up.

 

 

Totally see your point.   I scratchbuilt a stock '72 Duster grille, carved/sculpted myself in sculpey and then casted in resin.  Then I bought 3 of said from Vaughn.  His were better ONLY because his little parking lights had detailed lens and mine featured a sunken in base for Furure floor ploish lens, but anyway...

 

I am AMAZED at the detail of the grille on the 1/56 cars he made me.  Simply astounding.   And the wheel and tire detail.

This will be a thing!  No "cheating" to 3D print out the correct, unavailable hubcaps for a Al Bundy stock Duster, or a Bluesmobile, you still have to paint them and modify them to fit your model!

A '67 Lemans Hood for all the '67 GTO kits?  Boom!  Now you can make the Night of the Living Dead Lemans!

 

A '72 Duster Trunk?  Boom!  No you dont have to pay 200 bucks for a MPC body of a '72 Duster on Ebay from that guy who stock splits kits and charges 8 bucks shipping per part!

Treehugger, if you want to keep me in your camp, I have a list of basic parts I need scratchbuilt so I can convert kits into my TV/Movie cars!

 

 I'm pretty good, but not an artist when it comes to sculpting from scratch.  Im not good at molding and casting, I once carved a PERFECT '51 Ford F-1 Grille for my Sanford and Son Truck years ago.  Couldnt get the rubber mold right  :(  And THATS why Ken Kitchen is the "Sanford and Son Truck God" and not me  :)

 

So PM me, and together we will put the "art" back in ...uh...scratchbuilding! Big Smile

  • Member since
    April, 2018
Posted by Pikapus on Sunday, April 15, 2018 5:54 PM

3d Printing 1/25th scale is possible. I have difficulties adding a picture to show you my 67 GTO

 

  • Member since
    September, 2017
Posted by Big Gary on Sunday, April 15, 2018 9:20 PM

April 2018 Scale Auto Magazine has a 3D printed Maverick Super Mod .That will definitely whet you appetite.

  • Member since
    May, 2008
  • From: Burleson, Texas
Posted by ModelTexan on Monday, April 16, 2018 12:46 AM

I think you are overlooking a critical fact about 3D printing. Although I am "old school" and use hand tools, a mini lathe, a mini mill and other things in building models. I added a 3D printer to my arsenal about 6 years ago and I can tell you that there is a LOT of artistry in that. To get ANY part to look right requires a LOT of work and isn't just "programming". You have to draw the part in 3D with very accurate scale dimensions before printing the part. I can tell you from experience that I have printed many parts only to find something, such as a compound curve is off and I have to change the design and print it again.

 

Don't get me wrong; you have a valid point. I just think you have ignored the amount of skill required to design the part. For example, I have made carburetors from square and round styrene cut to proper size and glued together followed by paint and drilling holes for various details. Printing a carburetor in 1/25 scale requires designing the part on the computer display with those same square/round "parts" that I have to create followed by printing and then removing the excess support material (think "flash") from the final part and then sanding the printed texture off of the surfaces that show.  

 

It isn't that it is easier to make; rather the precision is better provided you have a high-resolution printer and nozzle. The hand skills such as sanding and drilling are still required to make the part look good and work. Any tiny hole you would normally drill will still have to be drilled in most cases unless it is a large hole and your printer is extremely high resolution.  I use #80 drill bits often and holes that tiny just don't print well if at all due to the flowability of the plastic.  The big advantage in small parts is in repeatability; if you need 4 identical parts then you can get them without using casting methods or carefully machining matching parts. Just design it once and print multiple copies.

 

When it comes to printing body parts it is a mixed bag. If you can carve a master and make a casting, brasswork or some other method then great. I have done that often over the years (although never as good as people like Augie Hiscano did).  The 3D printer removes the casting, brasswork or other method step but the CARVING step is still the same. Instead of using your hands to carve the master you are using software tools such as "lofts", "extrusions" and other shaping methods based on the software package you are using. There isn't anything particularly easy about that which is why CAD engineers make good money. It just looks easy.  Just try designing a compound curve part like the nose of a Karmann Ghia using the software before judging whether the 3D method is valid modeling or not.

 

I designed a folding hood on a 1/32 scale Bugatti T35B for the Airfix kit because I wanted to make an engine for it and the kit hood was super thick and unrealistic. That race car hood is a compound curve and tapered and covered with louvers. I also wanted the piano hinge to work. It took me weeks and multiple prints to get that hood to look right but when I finished it was "paper thin" and you could actually see through the louvers. At least most of them :)  I almost gave up on that hood several times as being just impossible to print.  Carving a master from soft wood and vacuum forming the hood would have been faster but the louvers would have been murder.  I'm glad I stuck with it.

 

I use a 0.2 mm nozzle and my own custom settings on my printer to get really small and highly detailed parts. Most hobbyiests using printers have to develop their own custom settings and that is an art in itself; commercial printing machines used by companies are a different story.  The stereolithography printer at my work is $50K or more and definitely beats any home printer but you still have to sand those parts and there won't be many modelers using one of those (unless the boss isn't looking?)

 

Many of the parts I could also make by hand but I like the challenge of the 3D printer. I do agree with you in theory. I think there is room for the 3D printing process however.

Michael

Oops. Oh, well it'll buff out...maybe...
  • Member since
    December, 2007
  • From: Portland Oregon: Tree Country. Most beautiful area on the West coast.
Posted by Treehugger Dave on Monday, April 16, 2018 12:29 PM

As most of us know and experience the car model hobby is in "SNOOZE MODE" as witnessed here compared to not that long ago.

It'll be interesting to see what the cross-over effect will be in a few years as the hobby slows down even more and the 3d part of the hobby has a chance to catch on as the hobby continues it's decline.

I went to a local contest that once had 200 - 300 cars repeatadly from year to year and this year there was maybe 60 - 80 at the most. It was pretty dismal. More vendors selling kits than contestants.

In this area builders are dropping out like flies - the world continues to change - and get much "OLDER".

Malls are disappearing by the hundreds each year, J.C Pennys store are disappearing, Sears, Macy's and restaurant chains by the dozens disappearing.

Just a sign of the times.

Love Velocity channel, Mecum Auctions and Barrett/Jackson auctions.

I learn so much there.

 

 

                                     

 

 

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