Author Topic: Test printing for Keystone Details restart  (Read 713 times)

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Lemosteam

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Test printing for Keystone Details restart
« on: April 27, 2025, 12:30:49 AM »
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In my efforts to bring Keystone Details back to life, I bought a second Anycubic D2 DLP printer.

I decided to take a smattering of old and new cad models from my lineup of parts and fill the build plate with them as a start to see what I could print and what I could not. None of my tripucks just yet, that will be another test coming up.

Each printer printed the same group of parts with only two failures on the new machine can you guess which part? Lol

Here is a shot of all the test parts.



The first part to mention is a PRR yard limit sign, like OMG! I will be printing these in black when the resin comes.



Next up is a very small brick sample of standard house red brick to scale 2 1/4”H x 7 1/2”W x 4”D with scale 1/2” mortar lines. Visible but likely not workable for paint and mortar tests, but zi will try.



Next up is my trusty fill spout. I can’t believe the handle printed.  :o



But these H21a hopper bracing are da bomb. Blown away that the printer actually printed the thru hole used for stiffening the part. The second and third pics of them have 0.009” stainless wire thru the length of the parts. The single brace I get as it was printed at a high angle to the plate, but the end-ribbed brace was printed horizontally, wow. Never thought that possible in SLA printing.







Lastly, I thought I would try my IM 4750 body mount coupler support and install tool for body mounting 1015 MT couplers underneath, a very old design. The tool helps position a drill bit into the car’s bolster to allow the support’s pin to place the mounting surface correctly.


« Last Edit: April 27, 2025, 12:34:28 AM by Lemosteam »
John "Lemosteam" LeMerise

JeffB

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Re: Test printing for Keystone Details restart
« Reply #1 on: April 27, 2025, 07:50:45 AM »
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Very cool John...

3D printing brick (chimneys mostly) is high on my list for things to try next.

Jeff

John

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Re: Test printing for Keystone Details restart
« Reply #2 on: April 27, 2025, 09:45:41 AM »
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Very cool John...

3D printing brick (chimneys mostly) is high on my list for things to try next.

Jeff


I've had pretty good luck with a Photon Mono ..

towl1996

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Re: Test printing for Keystone Details restart
« Reply #3 on: April 28, 2025, 06:06:49 PM »
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@Lemosteam, the prints look great, so happy to see this development! Interested to hear about the new business model.
Never argue with idiots; they'll drag you down to their level, then beat you with experience.

Lemosteam

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Re: Test printing for Keystone Details restart
« Reply #4 on: April 30, 2025, 10:14:36 PM »
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More test printing with the D2

Here is a revised version of the fill basin, angled this time on the build plate which allowed the basin drain grate to show, improved plank grooves and a light press assembly without glue, allowing the spigot to swing on its base as originally designed. I never thought I’d be able to print this as intended!







A copy of my Athearn tender shell. I may even try to print the entire repowering kit.



Next is my original crossing watch box, with a swinging, snap in door, and a pot belly stove! The smokestack is printed loose and glued into a hole on the roof.







Next up I am testing mob printing of my A5 switch machines that can double as an electrical switch cap for manual switching that manages frog polarity.



Next up is a test printing of my Atlas Code 80 Custom Line magnetic switch throw. The three pack kit will come with 3 each of LH & RH A5 machines, throwbar magnet holder, and turnout tie magnet holder. It’s an old Shapeways design but can now be printed for Keystone Customs. The A5 switch machine snaps onto either end of the throwbar hole and can be used as the grip, however a finger between the points works perfectly.

I may also try to print my Atlas Code 55 magnetic version for potential sale which can actually carry the current to the frog.



To go along with all of the switch fodder, are three packs of decorative pneumatic control valve boxes.



I am really having fun printing again. Something I was not able to do with my Mono.
John "Lemosteam" LeMerise

Lemosteam

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Re: Test printing for Keystone Details restart
« Reply #5 on: May 01, 2025, 10:00:17 PM »
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Never thought I’d be able to print this. Tried many times on my Mono X to no avail. One of my earliest offerings will be back in the queue. The X31f class “Turtle roof” conversion for a Fine N Scale X31a boxcar. Tichy makes N Scale decals for it.




John "Lemosteam" LeMerise

cgw277

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Re: Test printing for Keystone Details restart
« Reply #6 on: May 15, 2025, 09:34:46 PM »
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Hello:
These are very impressive looking prints. The fine detail is simply amazing! Were these printed with DLP resin?

Scot

Lemosteam

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Re: Test printing for Keystone Details restart
« Reply #7 on: Yesterday at 08:25:43 AM »
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@cgw277 , yes they are printed using AC DLP resin on my two AC DLP D2 machines.  I honestly believe its this resin that keeps them so clean.  Also pooling at the tips of supports is an absolute minimum, which was one of my biggest issues with the AC Mono X.
John "Lemosteam" LeMerise