tebee
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tebee started following Canada Works Birkenhead drawings , V-skip frame dimensions wanted , Resizing to different scales and 3 others
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He's Tebee!
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Resizing to different scales
tebee replied to rue_d_etropal's topic in 3D Printing, Laser Cutting, CAD & CNC
In the software I use I can resize in multiple ways. I can include a part or a collection of parts in another part and specify the ratio of original size to current size. I can adjust the size when I turn it into an STL file .It's also a parametric cad so I could write a formula to calculate the optimum thickness based on the size of the part. I don't use this as I'm printing to multiple targets ( a couple of Shapeways materials , resin printers and FDMprinters ) preferring to adjust manually. I do normally design things for 4mm scale and scale up or down from there - I use more than the minimum thickness in most cases and can easily thicken a part when scaled down if needed. Tom -
Older Inspirational Layouts
tebee replied to New Haven Neil's topic in Modelling musings & miscellany
Now I remember the name and that I liked the layout, but have no recollection of what sort of layout it was or why it was good. Can someone please enlighten me ? -
The Minitrix T3/dock tank 0-6-0t - Like I said it was designed 12 years ago , there are probably better chassis around now. It was originally on Shapeways, this is one of a batch of resin print one I did a few years ago. There is a side tank version I did later too. Somewhere I have a picture of the original Pugbashes, but after they got wrecked coming home from an exhibition. The van was in a minor collision when a car pulled out in front of it from a side street. The stock box containing the locos went flying across it and smashed on the dashboard.
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And another 3D print, this time on a Black Anna chassis This is also sort of a pugbash twice removed . Back in 1971 or so I did two 009 pugbashs to a Kerr Stuart Tattoo style loco with a bit of Bagnall thrown in. 12 years ago I replicated this as a 3D print, Now I've taken that 3D, design reworked it as an SG saddle tank
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Well Thanks. The saddle tank is actually a virtual kitbash - the boiler/smokebook/firebox tank came off an On16.5 Hunslet quarry tank and the cab is off a pug or more accurately a pugbash I recreated as a 3D print. It was your locos that inspired my friend to nudge me and remind me that I'd promised him some similar ones 2 years ago when I was building a freelance OO layout and he copied me ! The good ol' Smokey Joe is not an easy chassis to design for the motor is high at the back and that clip is wide at a bad place for saddle tanks
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They also made a number of G scale steam outline models
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You need a watch maker rather than a repairer - I had an uncle who was one, but he retired about 18 years ago and is in his 80's now - I don't think there are many left ! Resin - think people are referring to the fact that most resins tend to be on the brittle side. However there are specialist resins that are more resilient - this is one I've used - https://siraya.tech/collections/europe/products/tenacious-eu-1kg-by-siraya-tech
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Anycubic Photon and Mono X 3D DLP Printers
tebee replied to MikeTrice's topic in 3D Printing, Laser Cutting, CAD & CNC
It's the support structure flexing slightly during the up and downs of the printing process. I put 6 heavy supports in to minimise this - 3 along each long edge touching somewhere strong but inconspicuous. If that doesn't cure it, increase the exposure slightly, so that the supports are harder and stiffer -
This just popped up on Facebook Ferrocarril Central Argentino No.9 'Cordoba' Canada Works, Birkenhead, works No.218 of 1867
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Anycubic Photon and Mono X 3D DLP Printers
tebee replied to MikeTrice's topic in 3D Printing, Laser Cutting, CAD & CNC
because it's semi-liquid it's getting squished outward in the build plates downward stroke, you get a little extra resin traped each time which then gets part cured. Eventually this extra resin slumps downward under gravity, forming the too thick layers.