Are you switching versions of this design? Perhaps driving the main hub Axle could eliminate a belt? Perhaps another path to dive extruder motor?by cozmicray - Polar Machines, SCARA, Robot Arms
Z rod(s) Use a linear rail In keeping with the Seward way ---- perhaps a printed rail and trolley Motor spacing? Doesn't seem right --- no space for output shaft/pulley Wally Chrome -- still a gathering dustby cozmicray - Polar Machines, SCARA, Robot Arms
This digital elevation model (DEM) is based on data from the Lunar Orbiter Laser Altimeter Perhaps you can subtract this from your bed map to get flat?by cozmicray - Duet
Hey get air hockey table manufacturer to give you one to develop the ghost paddle Take the table -- put up sign ------ table recalled! bring it back with ghost paddle Todays super magnets -- no problem coupling a small paddle!! GO BIG or GO HOME!by cozmicray - Mechanics
Ghost Paddle Put mechanism under table and couple paddle with magnet?by cozmicray - Mechanics
benjamin_le "What do you mean specifically when you say a pusher?" ie pinball flipper? I think you must add energy to puck, to slap it, add energy, to score. If you are just intercepting puck and paddle is not perfect reflector --- you will only have a slower return FWIW --- I don't think you are going to move the core XY system fast enough to accomplish your mission! Pretty neat projecby cozmicray - Mechanics
Looks like defense mechanism only, unless some type of pusher on paddle? May just need one axis across table? See: Perhaps taut line system (system skycam would use) you have to work out kinematics, math and code --- but that is the fun! What sensor to track puck? Perhaps: pixyCMUcamby cozmicray - Mechanics
What? X Axle? X guide rod? Aluminum rods? How long? How will they be straight? How are they machined, polished? What type bearing will NOT shred them? Really? saving weight on load bearing piece that just has momentum in Y? QuoteHugoW Thanks for all the input. I've just bought aluminium rods instead of the steel ones for the moving X axle, reducing weight considerably. To keep things sby cozmicray - General
Computer: Print me Benchy Sorry Dave I can't do that that is 50 years in future! Perhaps a DaVinci Jr ? Miniby cozmicray - General
See: RAMPS1.4 Laser Upgrade orby cozmicray - Laser Cutter Working Group
Why not talk to the CNC shop! They will give you real answers and prices?? Hey they want to make the part right and have happy customers!by cozmicray - General
Will the Vee wheels be on excentric spacers? I can't see how wheels and grooves will be used on Z axis, and where leadscrews will be Remember bed should be restricted to only move in Z, with bed parallel to X Y plane.by cozmicray - General
Just lead screws? No guides? Does the bed do the hula?by cozmicray - CoreXY Machines
I guess its just priority Heater maker or 3D printer maker??? The good Digital Dentist has convinced many -- aluminum tooling plate Glass a good thermal insulator 400 x 400 with nichrome wire it will look like the Alps when heated up?? Flat hot bed = good prints Perhaps stainless tubing in ceramic bed with super heated steam from your neighborhood reactor??? Controller would have toby cozmicray - General
So is a 400 x 400 heater bed available or do you have to cut one on a table saw? 600 mm linear rails out there cheep? See what hardware is out there -- design around it unless cost is no problem then get everything custom madeby cozmicray - General
with the 80 steps per mm set command a 10 mm move on X measure the move calculate new steps / mm enter into code command a 10 mm move on X again measure the move again redo calculation because you did it wrong. do the same on Yby cozmicray - Mechanics
Headless? without a controller? Headless? without a CNC spindle CNC = Computer Numerical Code without computer or numerical code NOT CNC????? you could hold the spindle with your hand and not use G-code? you could have wires from motors on a terminal strip and touch power wire to each terminal to move motor you want to move 3 friends could be posted each on a motor you could yell ouby cozmicray - General
What KISS Laser diode head + driver / trigger board + power supply Separate power supply --- trigger / PWM laser from printer controller. Like: 12V Focusable 450nm 2000mW Blue Buner Laser Moduleby cozmicray - General
Once again the good Dentist speaks truth. Find existing hardware -- use it to develop design Crap in the components will result in printed crap cubed! Do you really NEED ABS? 214 x 214mm 8.42 x 8.42 in nice custom $$$$$ bed? I suppose a 200 x 200 heater would work? perhaps cut down a 300 x 300 on a table saw (just kidding)by cozmicray - General
Wow you invented a Mendelmax 2by cozmicray - General
DUH? * Default Axis Steps Per Unit (steps/mm) * Override with M92 * X, Y, Z, E0 [, E1[, E2[, E3]]] */ #define DEFAULT_AXIS_STEPS_PER_UNIT { 80, 80, 4000, 500 } X and Y are 80 steps / mm Nema 17 200 steps / rev 1/16 stepping 3200 steps / rev 200 turn * 3200 steps / rev = 640000 steps 640000 / 80 = 8000mm so 200 revs = 8000mm What software requires you to enter in revolutions? thatby cozmicray - Mechanics
How about voice coils to drive X - Y scanning?by cozmicray - Controllers
Blow Put a filter on suck side keep the dust out???by cozmicray - General
Since your linear actuator is so long, a long triangular brace below the table may take the jiggles out of the front of bed (no longer a cantalever but a frame braced) Sacrifice printing height and printer base taller to accommodate braceby cozmicray - CoreXY Machines
Bees make their own honey comb? Bees wax the product? Just the right size for growing new bees and storing honey Bees must consume over eight pounds of honey to create one pound of wax for their honeycomb so if the bees didn't make wax honeycomb -- what would they do -- more honey? I don't think any self respecting bee would move into provided housing? Does anyone know if bees move into andby cozmicray - General
What printer? What is "the lift of the print head" ?by cozmicray - Reprappers
Just wondering what problem is being solved by all the work on Z axis? Haven't seen bad prints off system? What is DD gold standard ---- three lead screw lift Z-axis?by cozmicray - CoreXY Machines
How about using a vacuum cleaner? suck air by? lots of suck air volume from vacuum? long hose with noisy part in sound proof room whole house Vac would be nice? I wonder if vac could run for 8 hour print perhaps water or cryo cooling?by cozmicray - General
So which ship from China is delivering the 5 tons of powdered nylon / abs / pla to be used for your sintering Could you scoop me up 20 pounds that I can try sintering?by cozmicray - Powder Printing and Selective Laser Sintering