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Raspberry Pi4 Released Today...

raspberry_Pi41
From Raspberrypi.org: We have a surprise for you today: Raspberry Pi 4 is now on sale, starting at $35. This is a comprehensive upgrade, touching almost every element of the platform. For the first time we provide a PC-like level of performance for most users, while retaining the interfacing capabilities and hackability of the classic Raspberry Pi line. Get yours today  from our Approved Resellers , or from the  Raspberry Pi Store  in Cambridge, open today 8am–8pm! Raspberry Pi 4 Model B Here are the highlights: A 1.5GHz quad-core 64-bit ARM Cortex-A72 CPU (~3× performance) 1GB, 2GB, or 4GB of LPDDR4 SDRAM Full-throughput Gigabit Ethernet Dual-band 802.11ac wireless networking Bluetooth 5.0 Two USB 3.0 and two USB 2.0 ports Dual monitor support, at resolutions up to 4K VideoCore VI graphics, supporting OpenGL ES 3.x 4Kp60 hardware decode of HEVC video Complete compatibility with earlier Raspberry Pi products And here it is in the flesh:   Raspberry Pi...
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3D Printing Safety: Angus (Maker's Muse) Offers Some Great Tips...

Colossus
I 'm not one for always trying to re-invent the wheel, and for both new and experienced 3D printer enthusiasts sometimes it's just plain good to take a look at things to consider when using your machines . This first video covers FDM printing. Resin Printing (SLA/DLP/DUV, ect.) has other considerations and is covered in another video following it. Failure to keep safety in mind can create potentially dangerous situations.       First and foremost , I want to stress the benefits of subscribing and following Angus (Makers Muse) on Youtube because he's active and been doing this for a very long time. he's recognized in the community the world over as an authority and some of my early learning and enthusiasm was a direct result of this fine gent's contributions to our craft.   His Youtube Channel:    https://www.youtube.com/channel/UCxQbYGpbdrh-b2ND-AfIybg He also has an active Patreon:   https://www.patreon.com/makersmuse    ...
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The First Layer. Elusive? No. Common Sense.

first_layer_example2
The importance of the first layer is paramount and will usually determine if your model is going to fail later in the build or not. Credit: Peter Solomon   Too many people do not give enough attention to all of the details to get the right first layer. Once that you do, so many of your problems will disappear and your printing will become fun and much more predictable! There are 6 Main Factors in getting the perfect first layer 1. Well Trammed Machine (this is not so much about the first layer as in good preparation for the rest of your steps) Tramming your machine is making sure all of the components are at perfect 90° to each other, this doesn't mean leveling with a bubble level gauge. It means making sure your vertical elements are all at 90° to the horizontal elements, that your X gantry is Parallel to...
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