The incomplete reprap beginners guide. Object Calibration, alexrj/Slic3r Github Machine Calibration, Triffid Hunter's Calibration Guide Commissioning, Calibrating Calibrationby A2 - Printing
Before taking any thing apart take pictures and post them here. Your assumption may or may not be correct, some one here might be able to better determine the cause, or guide you with a method to rigorously debug the cause of the fire, but if you destroy the evidence it wont help anyone. These are all my notes that I've collected concerning 3d printer safety: Warning, and Caution Label all theby A2 - Safety & Best Practices
Ball bearing riding in a grove. Looks to me like the bearing has square edges, while the screw has a round profile. Winners Technology -New type of ball screw, bearing screwby A2 - Mechanics
That looks good. You could also off set the elbow stepper motor, which would eliminate the pulley encompassing the column, and have a direct shot to the elbow pulley. Or rotate the motor 90 deg around the tube to eliminate the pulley. I don't think (?) you need the counter weight, as the build plate is only moving down. I would think that you would want a heavy build plate, less I'm not seeiby A2 - Polar Machines, SCARA, Robot Arms
Looks cool I agree with see3d, you can move the elbow motor, and pulley on top of the upper arm, that will allow you to keep your upper arm bracket. You could even move the elbow motor behind the shoulder pivot, the belt would pass on either side of the column. Not sure about the ratio change doing it that way, but you would eliminate nearly all the weight off of the upper arm, less the pulleby A2 - Polar Machines, SCARA, Robot Arms
QuoteNewKidOnTheBlock Hey, A2. I've been following your post regarding your DLP printer and was wondering if you could share with me how I could build a z-axis using v slot alu profiles, lead screw, and stepper motor. OpenBuilds.com has a 8mm acme lead screw (currently out of stock), do you think this would be strong enough and good enough to achieve 10micron layers? Hi NewKidOnTheBlock. I thby A2 - General
Another use: 3d print interlocking bespoke cement blocks, which would allow you to construct a temporary structure. Creating a temporary structure get's around some zoning laws. Use dovetail wedges for connections, a tarp for a roof, and some rope anchors to hold it in place. I can see filling the hollow cores with a transparent, or translucent resin to create a unique effect. PolyBrickby A2 - General
If you are trying to prevent the carriage from racking?, I don't think you have to worry about it (or do you?), as I believe that both the CoreXY, and H-Bot are inherently anti-racking linear motion systems. The driver (i.e. stepper motor) is the anchor of the anti-racking system. A Core-XY Implementation overcoming H-Bot design drawbacksby A2 - Mechanics
QuoteTraumflug Just tried ... apparently closed source and Windows-only. Thanks you very much, no use for such stuff. Tks for pointing that out. Quoteshafri i hope some of you will try. Its free (as usual). @shafri If you don't have all the skill sets to make this project grow, (e.g. rotate object), you should make it open source. There are many here with crazy advanced knowledge of softwarby A2 - General
@WillAdams: Your suggestion sounds interesting. How did you open your .txt data file in RapR3D?by A2 - General
Click on the "Layer" button and then select "All" then it shows the compilation of all the layers I'm not able to rotate it with the mouse, but I didn't look to see if there was another option for viewing, it would be helpful to view it from another angle.by A2 - General
Xabbax I think I got it to work. It show 2 squares.by A2 - General
Quoteshafri i put the boat hull in the download page graphics Please provide a link, I'm unsure of where to look. FREE!ship FREE!ship tutorial There are three more, one I know that is not useful because you can't output a useful file, the second one I'm unsure of it's source and don't want any one to risk it, and the third one has a newer version than mine, but again I don't know the sourby A2 - General
Tks shafri Care to talk about your boat design, and how you envision your RapR3D Visual GCode Editor helping you print your boat model? I'm thinking that a benefit would be that you can visually locate areas of the design that would fail, or otherwise not be desirable for an additive, or subtractive technology. For example very fine details are often lost during the manufacturing process, sby A2 - General
Tks. How about modifying your machine into a router, print components that allow you to quick change to lead screws, or try to use it as is with the belts. Mount a 200W RC motor + PCB controller + ER-8 collet. The motor spec says it's Rated Current (A/phase) is 2.8A, and you're running at 2.5A, doesn't seem like that would drastically reduce your torque, or am I missing some thing? I think itby A2 - Extruded Aluminum Frames
Gantry Type Machine Building Lots of good info can be found here for routers. QuoteJim Fong I use the 276oz-in stepper from automation direct and gecko drives for my gantry router. Does 300ipm rapids. Stay away from the bigger 400oz-in steppers unless you can afford a higher voltage power supply and very good stepper drivers. The smaller 276oz-in can spin pretty fast, a big plus if you are usby A2 - General
QuoteTired2 NEMA 23 Triple stacks at 286oz/in holding torque. 0.6 ohms, 5.6 amps, 1.8 degree per step by Automation Direct. I'm interested in learning more about your stepper motors, what is the part number, and link if you have it. Is this it? Chart How is the acceleration, and is it a fast motor? Tks.by A2 - Extruded Aluminum Frames
Post in the General section with a pointer to this posting.by A2 - Experimental
QuoteMrBaz I get jams even when I am manually pushing filament through. At first, I am easily able to push filament through, then it just gets hard and harder to push filament through until it completely jams. I find this quote perplexing. Because you can push the filament through at a high rate, enough so that heat doesn't migrate up the filament to cause a "plug" jam. I think you should go oby A2 - Printing
Read this: Microstepping: Myths and Realities Stepper Motor Dynamics Analyzer Microstepping Versus Gear Reductionby A2 - General
Black PLA? Measure the diameter of the ABS and compare it to the PLA, should be the same, or nearly so.by A2 - Printing
How to wire a stepper motor: Use a LED to identify wire pairs, (3 links): And Tips for beginners: Stepper Motors, bipolar series gets up to speed faster than parallel Determining what wires to pair up on a stepper motor. Match coils for 8 wire stepper. Calibration of stepper motors How to measure Stepper Motor Voltage POTs Calibration – RAMPS 1.4by A2 - Reprappers
Just to get people thinking of other uses for this, a couple more tangents to consider: Water jet cutting: ... and welding out of position.by A2 - Developers
A few links for you to check your work against: How to wire a stepper motor: Use a LED to identify wire pairs, (3 links): And Tips for beginners: Stepper Motors, bipolar series gets up to speed faster than parallel Determining what wires to pair up on a stepper motor. Match coils for 8 wire stepper. Calibration of stepper motors How to measure Stepper Motor Voltage POTs Calibrationby A2 - Reprappers
Do you mean the Stepstruder MK7 hot end? You might get more help on Google Groups, seems to be a lot of others are having issues with hot ends from Makerbot not working: I'm curious, after you clear the PLA jam, have you switched back to ABS, and did it print without jamming? THING-O-MATIC MK7 PLA SET-UP AND TROUBLESHOOTING (LIKELY MK8)by A2 - Printing
When you get the code where you like it, it would be really neat if it could be further developed, and applied to 3d printed mini mills with a 4th axis. G0704 Quarter Scale 3D Printed Model He has larger 3d printed models of mini mills, but in this video he's showing the head rotating. Possibly V-slots could be cut up, and reconfigured into V-ways or boxed ways. Here is a video of larger 3dby A2 - Developers
Very cool Thorp Probably going to be some new opportunities for hot end designs, and fancy gimbals.by A2 - Developers
Looks good! Got a link to the supplier of the squirrel cage fan.by A2 - Delta Machines
NIH 3D Print Exchange [3dprint.nih.gov] About the NIH 3D Print Exchangeby A2 - Object repositories