FWIW 1.75 watt 455nm diode laser cutting cardboard Black Depron meat container (doesn't do anything to white depron) blue gears allow focus without burning fingersby cozmicray - Laser Cutter Working Group
FWIW Moving big bed printer Trinitylabs Aluminatus A1 3d printerby cozmicray - CoreXY Machines
Arduino Due /Mega2560 just processor boards Your board with motor drivers and heater control would handle voltage / power (ie RAMPS) Suggest you research 3d printer controllers? Perhaps you should look at what parts are available 900 x 900 bed heater -- non-existant or very custom $$$$ What size support for 900mm travel? What rail size? Timing belt / leadscrew? see An Almost Reliable,by cozmicray - Reprappers
See I got MPU 6050 IMU hooked up what should I measure? MPU6050 6-axis MotionTracking device that combines a 3-axis gyroscope, 3-axis accelerometer, and a Digital Motion Processorâ„¢ (DMP) all in a small 4x4x0.9mm package.by cozmicray - General
What happened to Printy? nothing since Dec?by cozmicray - Look what I made!
You could use ---- Universal Gcode sender? send individual commands or send a file of g-codeby cozmicray - Firmware - experimental, borrowed, and future
Electronics What would interface to Raspberry PI? Some kind of special interface that must be Arduino? Most people use USB interface to printer controller or SD card Will the Pi be doing slicing and CAM? Consider: RE-ARM is a 100Mhz, 32-bit ARM controller with the popular Arduino MEGA footprint. It's a plug-in replacement for the Arduino Mega in your RAMPS setup for a quick and easy upgrby cozmicray - Extruded Aluminum Frames
Skrogh help on what is coming out of IMU Looks like a bunch of tilting going on Z axis? What are the data coming out of IMU Is there simpletons guide to IMU output What to use for our application? Another sketch spits out: What are they? ax ay az gx gy gz arx ary arz grx gry grz rx ry rz tnxby cozmicray - CoreXY Machines
Is static angle really what you need? You have a dynamic system you are measuring. Angle difficult to measure, accelaration, and rate of change much easier. Mechanical mounting --- long arm may provide the necessary resolution? Black art of conversion, filters and data fusion? The MPU-60X0 features three 16-bit analog-to-digital converters (ADCs) for digitizing the gyroscope outputs and threby cozmicray - CoreXY Machines
IMU set up test (MPU6050) Crude ---- just using Arduino IDE tools (Monitor, Plotter) How useful ????? Data can be captured in file data coming out precise (got to grab it as long float or something) just got to display it Raw gyro / accel, Quaternion, Euler etc? IMU on block of aluminum on bed of my FT5 Plot from Z axis move Data from Z axis moveby cozmicray - CoreXY Machines
In that iteration of my laser mount --- a micro switch was used to control laser so I defined an ON Z height and OFF Z height The Z axis moves to turn laser ON/OFF. Makercam used to gen g-code -- so it was acting as a spindle QuoteRogerA Cozmicray, thanks for sharing that video. I'm curious about the Z axis there. Any reason to move it so much? We're you returning to different heights beby cozmicray - Laser Cutter Working Group
Arduino IMU Arduino IDE Processing IDE 5 wires USB cable 3D visualization of this motion sensor. 8 - 12 place numbers output also available. ???? when you find out that the system has a 20 arcsecond / 40 micron error --- what will you do??? ???? will you do same measurements on leadscrew drive ????by cozmicray - CoreXY Machines
I don't understand the forces involved here REQUIRING Steel construction? and welding? Fine cabling, or strap cross bracing, corner gussets --- can make frame rock solid. Is it that you have lots of steel around? and just like to weld? Jigging up in fixture and match drilling for close tolerance fasteners --- easy! A quick lookup 2 x 2 ft plate -- 1/4 inch -- steel $65 -- Aluminby cozmicray - CoreXY Machines
Arduino IDE runs on PC under Windows / OS X / Linux You can load and install the latest arduino IDE, drivers, libraries. Do you have a copy of your existing Marlin running your printer. No -- you can't download firmware from printer arduino -- it would be compiled code Certain parameters are set in the configuration.h file of marlin to setup for specific printer configuration. The configuratby cozmicray - Reprappers
If you can make a shaped rail and a circulating ball trolley easier and better than a purchased unit --- wow --- have at it and six or seven times over. And have a mill that can handle 14 x 14 x14 inch and experience to mill accurate enough for 3D printing wow ---- have at it. Read the My coreXY design is progressing to the build stage thread lots of great design / building there!by cozmicray - CoreXY Machines
Why not temporaily remove extruder and mount laser Get a laser head AND a laser driver with a supply and TTL trigger I have a Shapeoko 2 with router / laser Arduino / GRBL shield / GRBL 1.75w blue laser that I can focus and control power with PWM trigger off of pin 12 Shapeoko forum good resourceby cozmicray - Laser Cutter Working Group
Agree with DD Linear rails bolt on rails like Igus, PCB Profile Rail Technology – Ball-type Linear Guides Smooth operators and for what you are doing don't have to be supported I guess it's hard to accept proven design / build by DDby cozmicray - CoreXY Machines
You have a list ---- does Anovice have his? He is thinking about painting his printer? ---- going to be used on shrimp boat? If the E3D v6 lite is the ultimate --- why does E3D make all metal V6, Volcano PTFE melts -- clogs nozzle --- the ends of PTFE always a problem? all the PTFE tube I have seen melts well before 320 degree claim E3D had to send out new gears for V6 because it was jamby cozmicray - CoreXY Machines
One has to assess what effects print quality and Knock off the items on the list to get at quality prints Never have seen a list of what drives quality printing. Digital Dentist may be able to provide his hit list. Really does a Steel frame, welded together, never to be adjusted, make it better, less frustrating. Is this going to be a M1A1 battle printer? Does a PLA cooler fan really work --by cozmicray - CoreXY Machines
Where your heater cartridge is mounted in aluminum plate will be very hot , the area away from the heater will be cold, Your heated bed will have a tremendous heat gradient that may induce extreme warp. What do you use atop the aluminum plate to provide a flat printing surface? What is under this heating plate to keep plate from heating entire printer mechanism? Do you map your build plate to cby cozmicray - Experimental and Hobby
Lots of gear sets out there. I wonder if they are all the same ---- made in Guanchou, China --- for all the garage door openers? You may want to design in space for spring or Belleville washer to load worm --- to minimize backlash?by cozmicray - Look what I made!
Suggestion: Rear projection Hang a piece of graph paper up and video laser dot from back side ??Even another use for a storm window piece of glass to hold up paper?? ??Print up ( inkjet paper) expected route and compare to laser dot travel?? ?? Will dot size obliterate errors ??by cozmicray - CoreXY Machines
I don't understand the scanning of the laser in the XY plane? Angular actions are shown by laser dot far away on wall, Linear action is just transported farther away. Using a lens on laser that creates a line my be useful to show angle of the line during motion, a beam splitter may also show more. A way to convert the linear motions to angular effects would make laser more useful. Mirror onby cozmicray - CoreXY Machines
I would use a separate power supply for your laser. A 10 watt laser is going to draw more current than a 1/2 watt laser Depending on the software / firmware you will use a pin on the Arduino may provide PWM trigger for the laser I use a GRBL shield on a MEGA 2560 and use pin 12 to trigger the laser power levels from 0 -255 OFF - Full powerby cozmicray - Laser Cutter Working Group
RAMPS is a shield on a Arduino Mega Provides stepper motor drivers and power controllers The firmware running in arduino (Marlin) converts commands (most likely G-code) into actions from RAMPS ports. Usually sent to arduino from a PC running a CAM software RAMPS MARLIN Marlin has a configuration.h file that allows for much flexibility in the firmware function One must tell firmware that youby cozmicray - RAMPS Electronics
The FT-5 (I have built) has a 12x12x15 print volume if you must have big? Cooling fans there are fans to cool extruder hot end for a thermal break fans to cool material after it gets laid down Both easily added to any printer I have a printer without a heated bed and without cooling fans --- does great PLA prints! Big print area -- lots of filament to melt and pay for? You getby cozmicray - General
Take a look at Folgertech. the forum has a lot of good infoby cozmicray - General
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Re-ARM for RAMPS is shipping out to kickstarter supporters KS comments out at: Documentation out atby cozmicray - Crowdfunding Projects Announcements