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http://reprap.org/wiki/CoreXY
Re: Extruder suddenly reversing, restarting, reversing - so on. During print - 9 years ago
QuoteItek I´ll just start printing as normal again (I have an upcoming project 3D printing a racing quad). If you're interested, I started a thread about my own 3D printed quad build, complete with a parts list:by AlexY - Printing
Re: Poor upper layer quality - 9 years ago
I'm not sure that design would be ideal for cooling the hotend since a lot of the flow branches off towards the nozzle. You could try using the original fan bracket and see if it helps any.by AlexY - Printing
Re: Extruder suddenly reversing, restarting, reversing - so on. During print - 9 years ago
QuoteItek No, I didnt try pushing manually.Yes. I agree the stepper motor doesn´t seem powerful enough. Does anyone know if I turn the pot on the stepper driver to higher Vres voltage, the stepper will be more powerful? Yes, turning the pot clockwise will increase the stepper motor torque but make it run hotter. If you increase it too much the driver will overheat and restart, causing skipping aby AlexY - Printing
Re: ABS sticking to extruder - 9 years ago
What temperature is the bed heated to? For ABS I think it should be around 110ºC.by AlexY - General
Re: Can't connect to hosting software - 9 years ago
I use a ramps board myself, so I can't really help with board-specific issues. Did you try using a different computer or a different cable? Also, try changing the baud rate setting in your host software.by AlexY - General
Re: 3D Printed Mini Racing Quadcopter - 9 years ago
The arms are a bit long so they might not work in ABS on an unheated bed. For now I'll just print with more infill until I get a heated bed.by AlexY - Look what I made!
Re: Extruder suddenly reversing, restarting, reversing - so on. During print - 9 years ago
Did you get a chance to try manually pushing filament through? It still seems to me that the problem is with the stepper motor not being powerful enough. It usually happens when heat creeps up the hotend due to inadequate cooling and causes a jam, which would be fixed with better cooling. Edit: Also, do you have a video of the problem?by AlexY - Printing
Re: 3D Printed Mini Racing Quadcopter - 9 years ago
I printed the parts in PLA since my printer doesn't have a heatbed, though ABS would probably be a better choice since it's less brittle. I might get a heated bed soon so I'll give it a try. The parts were mainly from Hobbyking.com (batteries, radio, speed controllers, wiring harness) and Banggood.com (motors, FPV camera and transmitter, flight controller, recording camera). Order from their Chiby AlexY - Look what I made!
Re: 3D Printed Mini Racing Quadcopter - 9 years ago
The frame arms seem a bit more fragile than their carbon fiber counterparts. A relatively low crash onto asphalt when doing some night flying yesterday broke all 4 props and the left rear arm. Though that's probably because I was trying to save plastic and printed the pieces at 60% infill...I'll try 100% on the arms to see if they're any stronger than they are now.by AlexY - Look what I made!
Re: 3D Printed Mini Racing Quadcopter - 9 years ago
It's actually been a bit of a challenge finding good places to fly; the field close to where I live (most of the sunset clips in the video are from there) is limited on the sides by trees so it's not as big as it looks. Out of all the places I've flown, I think I like the field at a local park the best (most of the daytime flips/aerobatics in the video are from there), though it's quite a bit farby AlexY - Look what I made!
Re: Input to solve issue with "strings" - 9 years ago
3.6 kg-cm should be fine for both the y-axis and the extruder.by AlexY - Printing
3D Printed Mini Racing Quadcopter - 9 years ago
Hey all, This is a project that I completed recently, a mini quadcopter that uses a fully 3D-printed frame. So when I crash, I can just reprint the broken parts and be back in the air again in no time! The quad is surprisingly fast and agile, and with a 4-cell battery installed it's like a rocket. I used the Cloneout Mini H frame from . The arms I extended a few mm to accommodate 6 inch props.by AlexY - Look what I made!
Re: does slic3r account for extrusion width in holes? - 9 years ago
Slic3r has a setting in the advanced tab of print settings that can compensate for wrong hole sizing; maybe you could adjust that value to fine tune hole sizes.by AlexY - Printing
Re: Extruder suddenly reversing, restarting, reversing - so on. During print - 9 years ago
If the stepper motor makes a knocking noise as it reverses, then it's skipping steps. Check that your motor is strong enough for the task, and that it isn't absurdly difficult to manually push filament through the hotend. You might also need to calibrate your extrusion. If your printer thinks it's extruding 100mm when it's actually pushing out 150mm then it would be likely to jam the extruder/hoby AlexY - Printing
Re: Can't connect to hosting software - 9 years ago
What electronics are you using?by AlexY - General
Re: Cyclical rattling/buzzing sound coming from a Wades - 9 years ago
Perhaps the gear is more worn down at that spot? If it's loose then the vibration from the motors could cause the gears to resonate.by AlexY - General
Re: Input to solve issue with "strings" - 9 years ago
Have you tried taking the extruder stepper off, running it, and trying to stop it with your hand? If it's easy to make the motor stall then the torque is probably too low and there's either something wrong with your current value, the driver itself, or the motor. Also, 185º does seem a bit low even for PLA.by AlexY - Printing
Re: Inserting components in a print - 9 years ago
That method wont work if you're trying to embed a hex nut perpendicular to the bed, since the top gets narrower.by AlexY - Printing
Re: CoreXY Binding: Mechanical or Firmware Issue? - 9 years ago
lol, I ended up being lazy and just disabling it rather than going into the advanced config.by AlexY - CoreXY Machines
Re: "Candy Apple" printer first pic and video - 9 years ago
Nice printer! What's the frame made out of?by AlexY - CoreXY Machines
Re: Part Cooling Fan - 9 years ago
Ideally it should probably be pointing at where the plastic is being extruded, but since that's right next to the nozzle, tilting it down a bit would probably be better.by AlexY - Reprappers
Re: Stepper motor turning in both directions? - 9 years ago
Have you tried the motor with another driver, and vice versa?by AlexY - General
Re: The longest prints prints you ever made? - 9 years ago
I don't do many long prints myself, but I've noticed that on longer prints, the filament spool often becomes an issue. Yesterday my Bowden extruder actually lifted an entire 1kg roll of stuck filament; luckily I untangled it before it started skipping. Another problem I've run into is USB communication errors, though it's gotten a lot less frequent after switching to Repetier firmware for someby AlexY - General
Re: Repetier, comand waiting - 9 years ago
Having a baudrate of 33 is way too low for printing. Set it to 115200 in firmware and in Repetier-Host.by AlexY - Printing
Re: Input to solve issue with "strings" - 9 years ago
Make sure the filament isnt slipping or getting stuck; also increase your retraction speed by a lot. I don't think lift z and extra length are helping much, so try disabling those too.by AlexY - Printing
Re: First time builder: Need help with ramps and arduino please! - 9 years ago
Do you have a picture of your arduino? Some clones use a ch340g chip for interfacing via USB instead of the normal atmega16u2 and require a special driver in order to work.by AlexY - Reprappers
Re: FFF printing in a viscous medium - 9 years ago
If you don't use 100% infill won't the oil get stuck inside the print?by AlexY - General
Re: Blobs on layer change - 9 years ago
Increase your retraction length and/or speed, and also try lowering the temperature.by AlexY - Printing