Wally Chrome prints something that looks like a real print Ride along with Wally see the movie atby cozmicray - Polar Machines, SCARA, Robot Arms
So where do I hook up the KILL BUTTON and how do I configure it in Firmware/software?by cozmicray - RAMPS Electronics
How to get "stop motor" and "Emergency STOP" buttons to work Arduino mega 2560 RAMPS 1.4 Repetier firmware Repetier host SW Can I wire in a Hardware "Emergency STOP"? Tnxby cozmicray - RAMPS Electronics
There is another factor CNC uses much mode G-codes. Like the difference between bimap and postscript in printing. Currently 3D printers use move to X, Y, Z and extrude. Does not utilize Center, Radius, arc type functions. The controllers just don't do it.by cozmicray - General
I was wondering what the 3D printer repair and maintainence would be and would it be profitable? Unlike inkjet printers that are throw away without service a 3D printer is to expensive to throw away and need a lot of care. Anybody out there doing this? There is a 3D print store in Burlington, VT This may be a business worth looking into?by cozmicray - General
That would be SCARA Selective Compliance Assembly Robot Arm or Selective Compliance Articulated Robot Wally and Morgan may in this classby cozmicray - Polar Machines, SCARA, Robot Arms
Why No linear guides? Is the design I proposed above an "Linear Guide" Quotenicholas.seward @cozmicray: Agreed that I could simplify. However, my personal requirement is that I use no linear guides. Anyways, that is just to just open up our minds and get us thinking. Opening bid if you will. I would drive this just like I drive Wally's bed. Btw, you can keep the motors from turning off dby cozmicray - Polar Machines, SCARA, Robot Arms
How is the parallelogram device driven. Pulley and string. Z-axis on Wally right now a pain -- with motor shut down crashing the bed. Seems like Nick uses reverse KISS and the need for massive components but it may be needed to support massive Basalt bed?by cozmicray - Polar Machines, SCARA, Robot Arms
Wally Chrome done? but not fully working? 5 ply birchply painted chrome Arduino mega 2560 and RAMPS 1.4 Hard PC bed heater and glass surface J-Head hotend 1.75mm Airtripper extruder white PVC extender to make it as long as Ubis Repertier Firmware Repetier-Host SW on XP 64 PC Only goes up 133mm Z-pulley and extruder limit Have NOT got firmware / software parameters set up right yet Losby cozmicray - Polar Machines, SCARA, Robot Arms
Design from Concept forge site starts with this post message has refined 3D concept of the "Noarc" designby cozmicray - Polar Machines, SCARA, Robot Arms
Jam and blow out on my E3D hotend. My E3D had a problem not extruding. found nozzle loose and PLA coming out at the top of the aluminum block. I don't see how PLA could come out in the area between Heating block and cooler --- but it did. I disassembled the whole hotend and cleaned it off by heating it up and removing all the gunked up PLA. put it back together and am up and running again I willby cozmicray - General
The phoenix uses a standard direct drive extruder but it is built in to X-trolley making it harder to put another extruder/hotend on printer. The Z-axis is run by one stepper motor driving belt system to move both Z-trollies to move Z-Axis Well there is the teeth on a timing belt pulley or threads on a leadscrew, and steps of a stepper motor. There is 4 feet of belt and the adjustment / attachmeby cozmicray - General
Anyone out there building a Wally with a RAMPS 1.4 electronics? running on PC with Win XP-64 Replaced Freaduino with genuine Arduino Mega 2560 and different RAMPS board and Polulu drivers all functions work X,Y,Z, extruder motors, bed heater, Bed temp, Extruder heater, extruder temp Need some help setting Marlin and Repetier-Host. my (set in Marlin config.h) X 8 steps/mm Y 8 steps/mm Z 166 sby cozmicray - Polar Machines, SCARA, Robot Arms
hp_ Who are WE? got a URL to your site for ceramic hotend Is it 100% ? ceramic body, ceramic heater, ceramic nozzle, ceramic thermistor?by cozmicray - Plastic Extruder Working Group
Here's Wally Chrome (Chrome spray paint on boards) Black forearm reprint to get beter internal threads Freaduino Mega 2560, RAMPS (all to be replaced --- real pain) Arduino Mega 2560, New RAMPS 30A 12V power supply Square hard PC Bed Heater Airtripper extruder (1.75mm) Hotend not in yet Have been using Macbook, Repetire-Host, Marlin Real hassel with electronicsby cozmicray - Polar Machines, SCARA, Robot Arms
What "Card" are you using? What stepper motor are you using? Find motor spec with internet search It should provide motor phases Look on board pins may be labled 1A 1B 2A 2B Match up the phasesby cozmicray - General
With glass being such a good insulator -- hard to get into a melt zone Inductive heater inside glass sounded really good but no one developing it. Perhaps glass above metal melt zone maybe glass nozzle below melt zone there is ceramic hot end --- ceramic insulating above hot zone Its all keeping PLA/ABS HOT and flowing AND insulating the HOT from the holderby cozmicray - Plastic Extruder Working Group
Geez taper bearings used on just about every wheel rolling out there. Can get bearings and races all over the place. Take them off your go-kart or your neighbors boat trailerby cozmicray - Delta Machines
See Vermont Rapid Prototyping A1 farm there is working pretty well Must admit Trinitylabs developed a great printer design then croaked I don't hear anything about their follow on printer (EVO-1) There are 200 orphan printers instead of the first 200 of thousands of printers. Just shows a great printer design just 5% of the job????? Also shows people will purchase a $1800 - 2000 printerby cozmicray - General
On LISA I thought tension of the leadscrews was important. Thus tensioning the leadscrew causes Axial load on top and bottom bearings in the plywood plates. What is the purpose of tentioning the leadscrew? Can you really tension a steel leadscrew much with a polymer clamp/nut? If the leadscrew is tensioned between top and bottom plates the stepper motor is not seeing any load. Wouldn't a tby cozmicray - Delta Machines
Easier solution: Elmer's purple glue stick on glass works really well NOTHING is 100%by cozmicray - General
??? printer firmware on arduino ???? Print job STL file -----> Slicer ------> G-code -----> G-code interpreter ------> drivers -------> printer move Data out of Arduino would be analog outputs for direction and steps to motors ------> virtual print? so you are looking for something to take analog outputs for direction and steps to motors to a print???? Gooby cozmicray - General
Axial load on common ball bearings is a problem!! So shouldn't you guys be looking at thrust bearings or thrust bearing -- axial bearing combination? and Is plywood and PVC strong enough to handle all of this "A2 --- Motor bearings should never be axially loaded, as they don't have thrust bearings. Deep V-grove bearings is an attempt to address axial loads, but I don't know what they put inby cozmicray - Delta Machines
This is a really neat design but these massive leadscrews are getting out of hand? I can see heavy leadscrews on a CNC that has to push-pull a big spindle / tool around but for squirtin plastic? The elegance of the ONLY leadscrew device is one thing. but Hundreds of dollars for mechanicals is not good. Especially for a printer that maybe has a life span of maybe a year, the way 3D printers arby cozmicray - Delta Machines
Nick Got any experience with threadless leadscrews? Ever experimented with them? Would like to hear your take. Sure would make it much cheaper, if it has enough precision. Perhaps using them long enough they would become threaded leadscrews?by cozmicray - Delta Machines
What does this mean? We get instructions if we pay a bounty? or Is this just contribution to the effort? Does this violate "Open source" ? Does one get a reward for building Wally without instructions? Quotenicholas.seward I posted a bounty for Wally's documentation. I am working on it anyways but a little extra money will definitely help in the motivation department.by cozmicray - Polar Machines, SCARA, Robot Arms
You could get a GIT client and download a particular branchby cozmicray - Delta Machines
LISA Simpson great I see a very un-happy Wally in corner watching LISA work. Looking at video: With the stationary trolley (not being moved by leadscrew) being rotated by the other two trolleys movement --- doesn't this screw up precise positioning or does software account for this ?by cozmicray - Delta Machines
Nick I know you are trying to keep this with ONLY leadscrews but would one guide rod on each corner help A change to your trolly to capture a linear bearing riding the rod? It would prevent the trolly from twisting and enhance rigidity ? Is this just for extruder -- or are you designing for a mill tool?by cozmicray - Delta Machines
Perhaps the use of double stack stepper motors may give you more power for the Z axis and bed lift.by cozmicray - Developers