Could it be the end of line character? Does it work with repetier or pronterface?by imqqmi - Firmware - Marlin
Motedis is a good source, reprapworld.nl too. I've ordered from both. Also ordered from ooznest.co.uk if you want extrusions to be used with delrin wheels like ender 3 uses, which is in my opinion better than using rods, it's stiffer. I've built a corexy 3d printer with it, great stuff and easy to build, adapt and take apart. Especially with drop in nuts with springloaded ball in it. They stay puby imqqmi - Reprappers
Expansion of the heated bed? Uneven bed? Bed mounting screws loose?by imqqmi - Printing
Try the 'detect thin walls' slicer setting, this should make sure the geometry isn't ignored. I've sliced some single walled stamps that worked well like this. Using adobe illustrator lines, then converted the lines into shapes and imported and extruded the shapes in 3d program.by imqqmi - Printing
Did you do pid auto tune?by imqqmi - Printing
Try a newer version of arduino ide. Try to start the board anyway, maybe the verification fails but was uploaded correctly. Also make sure you've got the correct chip selected. Some boards have a 128KB flash memory microcontroller on them (as opposed to 256K, which limits the options you can select at compile time.by imqqmi - General
This is often caused by the wrong extruder steps per mm/filament diameter and z distance from the bed after homing. You probably adjusted the z height for the correct look of the first layer. If it's over extruding, setting a higher z may print the first layer seemingly correctly, but the over extrusion will progressively add too much filament. This isn't how you it should be. First calibrate theby imqqmi - General
If you remove the belt, does the y axis motion seem smooth to you or does it bind? Check/replace cables, connectors etc. Did you try swapping x and y steppers (and swap stepper motor connector between x and y) to rule out mechanical/electrical issues? Did you adjust motor current on the stepper motor driver (the tiny potentiometer)? Could you upload the configuration.h file somewhere and postby imqqmi - RAMPS Electronics
Excellent design process, goes to show 3D printig can improve quality of life, even just a little. Casting is a lot stronger than printing, although TPC flex would probably do the job equally well, layer adhesion is as strong as the stuff itself. Thanks for sharing!by imqqmi - Look what I made!
Did you try the firmware configuration tool?by imqqmi - General
Buying a kit is always easier than scratch building one I guess, but if you're even considering scratch building a 3D printer, the point is moot. I don't think the designjet is going to provide many usable parts for a 3D printer build, maybe you can use a couple of parts in a 3D printer but you're going to have to select and buy the rest. The thing is that those parts may be build specifically fby imqqmi - Reprappers
Thanks! Using SolidWorks it was surprising easy, even with the odd angles and curved lines, and my limited SW knowledge. Fusion360 should be equally good to do this. Do they work well? I can imagine the chair would loose some of its stability and could go sideways breaking the 5mm wall. I've bought heavy impact resistant abs ones for my father at some point, though it couldn't be hidden, these dby imqqmi - Look what I made!
We've got these chairs second hand, I gave them to my sister, she likes them, I, not so much However during moving them the little feet snapped right off of most of them. The plastic became very brittle apparently. My sister asked me to 3D print them or machine them using the CNC. I started modeling and got pretty close to the correct shape. I sent a test print to my sister. She said the anglby imqqmi - Look what I made!
Could be a good candidate for a semi flexible filament like tpc 65. Inter layer strength is excellent, no different from stressess in any other direction. I don't know what the holding forces are though, so you'll have to experiment.by imqqmi - Look what I made!
I use vslot and leadscrews on my corexy build z axis with a single stepper motor and a closed loop belt, and works very well. I used tr8x8 though, i've found they provide plenty of resolution. The layers are very consistent. Minimum layer height is 0.04mm per full step and use layer heights that are a multiple of that number, usually 0.32 or 0.2mm depending on the level of detail required. Sinceby imqqmi - General
Agreed, the take away here is to clamp on the wires, not the pu profile. A loop should half the force on the pu. Not sure if the tight loop is a problem for the steel wire. Only one way to find outby imqqmi - General
If you find it difficult to get into 3d printing and building one from scratch without having built something like this before, might I suggest to look at a kit like creality cr3 or similar? It's much easier to build your own 3d printer with some experience under the belt. You'll be better informed how stuff works and what's important to you. I'm still not sure what kind of budget you have availby imqqmi - General
According to this github repo, it uses a melzi board: Here are the options for Marlin 1.1.x: I'd copy the melzi or melzi/creality config to a new config with a new #define name, then lookup the pin designations on the schematic here and reconfigure the hotend1. That's how I did it with an older marlin version and a ramps board. I didn't want to loose the cooling fan so I used an external moby imqqmi - General
It's been a while that I've printed Nylon (12 I think). My settings are: Hotend: 265*C Bed: 110*C Print at slower speeds like 30mm/s First layer: 15mm/s I used PVA glue (normal 'school' glue) which seems to work well, although on glass it can stick a bit too well. Sometimes a piece of glass tears out of the plate and still stuck to the print. I now use water based varnish, which is about the saby imqqmi - Printing
Quotethe_digital_dentist I guess it could do that if one of the motors skipped steps, then stepped, then skipped steps, etc. I'm not sure what would cause it to do that, but it looks like it happened in the photo you posted. I guess you're right. It just seems it's completely gone crazy when it does it.by imqqmi - CoreXY Machines
Quotethe_digital_dentist Quoteimqqmi Due to the nature of corexy it can do some weird motions like this, stair casing etc. What is in the nature of corexy that can cause stair-stepping? I guess if one motor is stalling or if a coil gets disconnected somehow the diagonal motion and back and forth motion of the other could cause this. That's my thinking anywayby imqqmi - CoreXY Machines
Is there a reason you need a 3d printer? It sounds to me like it could also be a job for a cheap cnc router. You can buy poly carbonate flat stock, aluminium or other materials. If you just need something flat with holes and pockets machined then cnc is the way to go, and would be a lot quicker compared to 3d printing a large volume/flat thing. 3d printers would typically take 10 hours and a cncby imqqmi - General
Sure, I'll try to shoot some better video tomorrow. I did a rough alignment with a bubble level like this: First I made sure the table was level, then leveled the lower frame section, then the top and the bed frame to get them in the ballpark. I also made sure the 80x20 rails are at 90 degree angle with both bottom and top frame parts. Then I used a couple of 40x20 beams clamped to the Z beby imqqmi - CoreXY Machines
Yes, that's exactly right! I think there's a speed penalty to 0.9 degrees per step stepper motors though but I can't say from experience since I don't own one. Better to aim for 24V drivers, they can reach higher speeds. And there are 16 teeth pulleys too (with an inner diameter of max. 6mm or 1/4"), gaining 25% more theoretical resolution. Don't use steel reinforced PU belts thouhg, they willby imqqmi - General
Google microstepping. It uses more voltage levels that approximates sine waves for driving the motor coils. The higher the microstepping, the closer it gets to a sine wave as opposed to a square wave.by imqqmi - General
You can't increase the flow for infill specifically as far as I know, only the extrusion factor and filament diameter for all extrusions. If you think you need a different extrusion flow rate for infill from petimeter chances are there are other problems. Maybe the infill speed is too great or you may be using a long bowden tube that doesn't keep up with the required pressure changes. You coulby imqqmi - Printing
If a full rotation of the 20 teeth pulley covers 40mm, ie 20 teeth at 2mm per tooth, the number of steps a 1.8 degree per step stepper motor needs to do for 1mm is 200 steps per full rotation / 40mm per rotation= 5 steps per mm. so a single full step covers 1/5 = 0.2mm. 2x and 4x microstepping is also reasonably accurate so you could push it to 0.1 and 0.05mm per layer.by imqqmi - General
You need good alignment for the vslot wheels. I use them in my 3d printer build and only one wheel suffers from this and you guessed it, it was misaligned. I also use them on the cnc ox build, no damage to the wheels yet and that with a 3kg spindle on it, total gantry weight is about 5-6 kg. I like it a lot better than the noisy and loose lm8uu, which can also wear a hardened rod quite easily.by imqqmi - General
I use openbuilds delrin nut blocks on my diy corexy 3D printer and these don't have any backlash and don't need lubrication. They are mounted differently so you may have to redesign some parts to install it. I use v slot extrusions to constrain the z bed in xy axes.by imqqmi - General
It's not difficult to get a program on the arduino with a command line interface (google it). Basically you could send text messages through the serial port over usb through a terminal client or even the one included with arduino ide (serial monitor iirc). The most basic is a program that checks if a character is pressed on the keyboard and turn a pin on or off. I use this all the time on pic micby imqqmi - Let's design something! (I've got an idea ...)