see Innovative new type of extruder: the Vaeder V-struderby cozmicray - General
Look for a darkroom timer Usually turn on enlarger for set time or time chemical imersion could use your smart phone Smart Wifi Wireless Switch Module Home Timer Remote Controller for Android IOSby cozmicray - General
Check out nozzle filament output temperature Temperature effects with PLA printing / RepRap Newsby cozmicray - Printing
I'll agree that +- 10deg C does have consequences if you will agree: type of PLA manufacturer melt length glass temp --- melt temp Flow rate cooling Have just as much effect on extruded PLA sounds like lots of thermal mass, heater power and a tight PID requiredby cozmicray - General
Found a good article that may show some temperature effects on PLA, dramatic surface effects He does state "I also destroyed one of these vases at the time to see if the temperature made any obvious differences to bonding strength. I could not find any difference while splitting and ripping the different temperature printed areas." the original question. Temperature effects with PLA printingby cozmicray - General
3DS-QUAD asked the original question and have not heard from him/her? Is leadinglights a thermal engineer for a polymer extrusion development company? All PLA NOT the same, all kinds of different material to make up colors. Many manufactures don't even test or make up spec sheets? But your the X-spurt?by cozmicray - General
Nice simple moving leadscrew nut moving Z axis --- fixed leadscrew motor fixed to bed leadscrew nut rotating in bearing in bed flange pulls / pushes bed up/downby cozmicray - CoreXY Machines
It is unclear if TRACER is: hardware electronics firmware software Your mention of RAMPs seems to say this is firmware on a Mega arduino?by cozmicray - General
What filament material are you using? Would like to know what material and manufacturer requires this tight temperature tolerance? Is the length of the melt zone a factor here? Would a hotend insulator help?by cozmicray - General
Should have stated nickle plated copper block hotend Copper block and copper nozzle make all material the same but nozzle is nickle plated -- heat break? is there copper jacket on heater cartridge? Whats the point? Keeping polymer within +- 0.001deg C when +- 10 deg C is just fine??????by cozmicray - General
So you are saying to copper plate the hotend? a thin film of copper doing all this? What pHD in thermal dynamics has stated that this would help? Perhaps a FLIR thermal camera to show where the polymer is cooling too fast or is off by 0.0001 deg C Insanity -- set temperature +- 10 c should be OK for any polymerby cozmicray - General
The difference between filament temp in nozzle and the temp at the thermistor is miniscule. The A to D (analog to digital) conversion is probably less precise! If you really needed to know you could compute temp effect between : filament and brass nozzle Brass nozzle to aluminum block Al block to material around thermistor material around thermistor to thermistor Non contact IR themometers haby cozmicray - General
You asked for comments. This is like a critical design review (perhaps you have never gone thru one) People will attack your design --- to make it better or perhaps to say been there done that --- doesn't work very well If you are the customer -- paying for design -- then you get to say do it this way. If you are an expert Mechanical Engineer and expert in 3D printer design and development Wby cozmicray - CoreXY Machines
GIGABOT ErectorBot EB 2076 LX BigRep ONE 3D PRINTING FOR ARCHITECTSby cozmicray - General
Why 500x500x750 mm with considerably high resolution (0.050 layer hight) You can have big or high resolution but NOT both without big bucks! Is there a readily available 500x500 bed heater? extruder should be fully metallic to endure a temperature of 600C Most FFF filament flows below 250C? What filament needs 600C May need your own power station to power this thing? Perhaps you should reaby cozmicray - General
Read: My coreXY design is progressing to the build stage An Almost Reliable, High Precision, 3D Printer: Son of MegaMax and Mark Rehorst's Tech Topics Then read them again take notes and heedby cozmicray - General
I cannot see any reason / advantage for moving motors on Z axis? and Motors where screws go thru the core? If you must one Z motor and a belt driving three leadscrew nuts on pulleys? Maybe Inchworm drive but driving leadscrews from base probably better? Digital Dentist Core XYby cozmicray - CoreXY Machines
200 x200 x 200 exterior? Leaves maybe a 120 x 120 x 100 build volume Save the frustration: 220 x 220 x 240mm printing volume $150 Anet A8 Desktop 3D Printer Prusa i3 DIY Kitby cozmicray - General
There is all ready a "Printy" Printy Update: An Open Source DIY 3D SLA Printerby cozmicray - General
No such thing as light duty CNC for milling aluminum! seeby cozmicray - CNC Routers, Mills, and Hybrid RepRapping
What do you define as "build plate"? Bed ---- the flat surface required for good print? Glass, Aluminum, other Heated How is your build sheet held to/down to bed? my size 300mm x 300mm glass heated I print directly on glassby cozmicray - General
On your prototype What servos? What controller? What firmware? What software? Tnxby cozmicray - Mechanics
What is this servo? Most printers use stepper motors. Your NEMA 23s are stepper motors Looks like extruder is using NEMA 17 stepper motor ? Z axis switch on servo? What is this for? Z axis limit switch? Why? RAMPS drives stepper motors usually 4 drivers X, Y, Z and extruder What firmware? Marlin? What type of extruder --- home made MK 8 type If it works fine? But the mess is goinby cozmicray - CoreXY Machines
My toolchain on Shapeoko 2 with GRBL Inkscape (with plugins) ----- Paths SVG Maker cam ------- Generate paths, pockets Gcode Universal G Code sender ---- Shapeoko 2 CNC Bmp2cnc See Software - CAD, CAM, Workflow Help for all answersby cozmicray - CNC Routers, Mills, and Hybrid RepRapping
Check wiring Check Marlin config.h file for correct settingsby cozmicray - RAMPS Electronics
check wiring try moving motors via LCD control Try test code Check Marlin config.h Try Repetier Hostby cozmicray - RAMPS Electronics
Do you filter or neutralize your: Chimney Plumbing vent pipe Kitchen stove vent auto exhaust painting farting ??? Are there OSHA acceptable levels on hobby 3D printing with ABS?by cozmicray - Safety & Best Practices
People here and other forums are doing SLS powder printing Where they get powder still a mystery to me?by cozmicray - Powder Printing and Selective Laser Sintering
There are different types of LCD screens TN, TFT, S-IPS, H-IPS, Super PLS, AHVA see tonic water as a UV indicator is neat.by cozmicray - General
I don't understand voltage trials The driver circuit is 12V input use a separate 12V power supply with enough current (amps) capacity This should provide max laser power at continuos ON Then TTL between 0 -5 volts to PWM the ON/OFF cycle (should keep it below 5kHz) fan output is not TTL but just a 0 -12 volt for fan drive Look for a TTL output on arduino Look at the pins file for pin definitby cozmicray - Laser Cutter Working Group