C3DBenelux Printrbot Talk Forum • View topic - Setting Max Feed Rate in Marlin Firmware The Marlin software can use standard Atmel / Arduino EEPROM to store all the "constants" you are talking about. The working constants are loaded into RAM when the firmware boots up... either from EEPROM or from the defaults stored in the firmware. If the EEPROM "version number" matches the "version number" expected by the firmware, then it uses the EEPROM numbers. You can change the values of the constants in RAM with G-Code commands, and then you can store the modified values in EEPROM with an M500 command. I think you will find it a lot faster and easier to play with your constants this way as opposed to compiling and flashing your firmware all the time. I agree that somehow your step rate is too fast if the stepper motor just buzzes or hums and doesn't move. Recommended reading: Reprap description of G-Code commandsand a description of the M500 series of commands: viewtopic.php? (Technically, yours is more of a software question than a hardware question, but don't worry.)
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Using Unicode You can insert a number of special symbols into Mtext. In the Mtext editor select the symbol icon "@" on the formatting toolbar to get the symbols menu. But what if you want to insert a symbol not in this list? There are a number of characters in most fonts that can be inserted with some good old fashioned arcane syntax. Let's say you wanted to use the less than or equal to symbol. In Character Map select the True Type equivalent of the AutoCAD font you're using in your drawing. In the Mtext Editor type this Unicode value where you wish to insert the symbol. HOME - CadVideoTutorials Science Can Neither Explain Nor Deny the Awesomeness of This Sledding Crow - Alexis Madrigal - Technology Before we talk, you need to watch the video above. It's just one minute and 24 seconds. You'll observe a crow (probably a 'hooded crow') pick up the lid to a jar, set it down on the apex of a snow-mottled roof and slide down one side, carefully keeping its feet on the lid until it gets to the bottom. Then it picks up the lid, flies back to the apex, tests out another face of the roof, finds it lacking, returns to the original position, and slides down again. It is a remarkable demonstration of the intelligence of the crow, which sits on a smart branch in the animal tree within the family Corvidae. I wanted to know if there was a greater significance to this video and this amazing bird. Across the phone line, I heard Kamil gamely open his email and begin to watch the video. Then I started my questioning. Kamil demurred. "It is in keeping with the general reputation of corvids," Kamil told me. There are two problems with making much of the video.
AutoCAD Tips Google’s Web Book – “20 Things I Learned About Browsers and the Web” In an attempt to teach the average person about the fundamental of browsers and the web, Google has released an interactive online book called ” 20 Things I Learned About Browsers and the Web” This short book, 20 Things I Learned About Browsers and the Web, is a step-by-step explanation of the web and how it works. It covers 19 different topics. Starting with “What Is the Internet?” and then dives into Cloud computing, Web Apps, and more. Table of Content This is created by the Google Chrome team using HTML5 and also featuring a lot of clever illustrations by award-winning German illustrator and children’s author Christoph Niemann. Read & Download You can read the Book here : 20 Things I Learned About Browsers and the Web. Comments What do you think of Google’s new Internet book?
AutoCAD Tutorials for free, 2012 2013 Lessons, Videos - a Complete Course If you do not have a copy of AutoCAD, you can download a 30 day evaluation copy from Autodesk. Follow this link, or go directly to their website. You will be downloading AutoCAD 2014 and it will work fine with these tutorials. You can also try other CAD programs like ZWCAD, which are less expensive alternatives. Here are complete lessons divided into 4 levels of learning. Each Level is one section that builds on the previous. Many lessons have videos with narration to explain in detail some of the concepts.