Extruder max acceleration - 2 (default was 3333) Extruder feed rate - 5 (I guess default was 45 or higher) Put those back to the defaults, Put a fan on the hotend to cool the PEEK. Since you are trying to cram 3mm filament through 0.4mm (I use 0.5) Raise you temperature from 185 to 195 If you are using a GREG WADES EXTRUDER Make sure your IDLE bearing is not bottoming out, and preventing itby ShadowRam - General
You should contact the developer of OpenSCAD. He's is currently working on how to handle colour changes and having colour information saved within the model file. The question I put to you, Do you treat colour as a material? (And allow mixing of materials later on) Or do you treat colour as a surface information? The gents at ordsoultions has already done a LOT of R&D in the multiple colby ShadowRam - General
Post section of your configuration.h info of your speeds (steps/mm) and accelerations. It sounds normal for the most part, but you can hear a stepper in there that sounds like it's attempting to move too fast,by ShadowRam - General
Is there some kind of device that can heat the layer previous as it is printing? Much like when using a Fan to cool PLA, Use a mini-heatgun to heat the layer below.by ShadowRam - General
QuoteT3P3 The diameter of the filament does not have a direct influence on the extrusion force at the nozzle as the plastic is molten. It can make a difference further up the path though. It varies by hotend design for example the length of the transition zone. This information is completely false. P = F / A For the same pressure drop through the nozzle, A 3mm diamter cross-sectional area reby ShadowRam - General
Yup. Read up on H-Bridge.by ShadowRam - General
-Marlin Firmware + Pronterface -I can connect, but none of the motors move when I print or do manual control. -Sprinter Firmware + Pronterface -I can connect, but motors just vibrate when moved That's probably a result of endstops. You can't move the motors in one direction as a result of the endstops not installed or configured correctly in the firmware.(Marlin) Only the RAMPS Test Code Firmby ShadowRam - RAMPS Electronics
Remove the RAMPS board from the Arduino. Power up the Arduino via the USB and see if it works. If not, you'll have to replace it. If it does work, chances is you shorted the D2 Diode on the RAMPS board, which will have to be replaced.by ShadowRam - RAMPS Electronics
definitely a connection issue on the RAMPS 1.4 Remove it from the Arduino board and check for loose or bad soldering.by ShadowRam - RAMPS Electronics
Those steppers will work fine. You don't have to put FULL current into them to have them be useful. And besides, I don't know what bob's talking about. the Polou's handle 2amps fine. (with heatsinks) I run my NEMA 23's that are rated for 2.8A without a problem on my 4988's Drivers.by ShadowRam - Controllers
Quote"I laughed when they showed their tests (flexion and compression tests) as I think it was completely unnecessary for a hotend in reprap community," I was impressed, its clear they have done much more professional design testing than most of the 'made in a garage' designs I've seen here. The fact they did some FEA on it and heat simulations is also good.by ShadowRam - General
Buy another Hot End. It's not worth wasting money on wasted filament nor the aggravation of attempting to get something that is broken, working. The supplier I bought my J-Head from supplied me with some 'Exhaust Putty' It's high temperature cement to bond the sensor and resistor in place.by ShadowRam - Reprappers
MODS, Just shut down this entire thread, It's clearly going no where RepRap or 3D Printer related.by ShadowRam - General
Quotetjb1 QuoteShadowRam Instead of measuring the filament, perhaps a load cell of some kind on the idler/extruder can give you an accurate real-time feedback of the diameter, That still wouldn't provide a full diameter, the idler/drive only engage on a very small area of the filament. It's good enough. The percentage that a filament would be out-of-round would be negligible in the overallby ShadowRam - Controllers
You most likely burnt out your D2 diode. Most people wire the 12V backwards and burn out this diode. or perhaps it was installed backwards, Check out the 1.4 RAMPS wiki to find it on your board. Good news is you can salvage the D1 diode to replace it. The D1 just allows the Arduino to be powered off the 12V instead of the USB. This is only needed if you want to run off an SD Cardby ShadowRam - Controllers
I'm not quite sure why anyone would want to do business with a person that has no problem with putting people's personal information online, http://forum.reprapdiscount.com/forums/hall-of-shame-scammer.12/by ShadowRam - General
Do you have a fan or something that comes on around that height? Do you change temperature of the hotend after the first layer?by ShadowRam - General
Maybe M400: Wait for current moves to finish Finishes all current moves and and thus clears the buffer. That's identical to G4 P0. Example: M400 So it would go.. Gcode move Gcode move Gcode move M400 Gcode Output Cameraby ShadowRam - General
Everyone used 3mm. But when Nozzle sizes dropped <0.4mm the pressure was too high, and hot ends would jam. So they went with 1.75mm Filament. It depends on what Nozzle size you want. 0.5mm Nozzle (Faster, larger prints) get 3mm 0.35mm Nozzle (Smaller, debateable resolution improvement) 1.75mm If you are starting off. I would recommend 0.5 Nozzle and 3mm filament. It's more forgiving.by ShadowRam - General
Where on the Ramp board is the bed connected to? It's suppose to be D8 http://reprap.org/mediawiki/images/6/6d/Rampswire14.svg Also, You need another 12V Power Supply on the 11A input as well.by ShadowRam - General
I thought absolute was strange when I first started with a 3D Printer. I figured it was like that because it's an easy way to calculate total plastic required and estimated time to print.by ShadowRam - General
Also while testing you should drastically lower the speeds and accelerations. Change this #define DEFAULT_AXIS_STEPS_PER_UNIT {78.7402,78.7402,200.0*8/3,760*1.1} // default steps per unit for Ultimaker #define DEFAULT_MAX_FEEDRATE {500, 500, 5, 25} // (mm/sec) #define DEFAULT_MAX_ACCELERATION {9000,9000,100,10000} // X, Y, Z, E maximum start speed for accelerated moves. E default values are gooby ShadowRam - RAMPS Electronics
Instead of measuring the filament, perhaps a load cell of some kind on the idler/extruder can give you an accurate real-time feedback of the diameter,by ShadowRam - Controllers
^^^ I know some of those wordsby ShadowRam - Controllers
Quotejcabrer Yeah, the molecular structure of UHMW is created as it is chemically formed. Reforming it through extrusion probably breaks those really long chains. It is listed as non-toxic. UHMW is Polyethelene. It is a thermoplast, not a thermoset, So you should be able to melt and extrude it. I use UHMW a lot in a number of projects, it's very high wear resistant. I don't know how well iby ShadowRam - General New Machines Topics
Quotenophead The chamber temperature will affect the bond strength just as much as the nozzle temperature. The bond strength of a weld will be proportional to how long the interface of the two materials stays above the melt point of the material. The interface temperature will initially be the average of the nozzle temperature and the temperature of the previous layer. The chamber keeps the previby ShadowRam - General
It's got to be an Arduino problem, Something with the timing the Arduino does to update it's outputs, or a harmonic freq issue, maybe the length of wire you are using is causing problems. I haven't seen any actual electrical specifications on the Arduino's outputs, or even what function they are using to pulse the Pololu's. I had a problem on my setup when running it really fast, See video @by ShadowRam - General
http://reprap.org/mediawiki/images/6/6d/Rampswire14.svg Second Extruder Sensor gets plugged into T2 It's all right there in the wiring information on the RAMPS 1.4 wiki http://reprap.org/wiki/RAMPS_1.4by ShadowRam - General
- Steps Per: X128 Y128 Z100 E115.8 - Feed Rate: X350 Y350 Z35 E70 128 steps per mm 350 mm/s That's 44,800 steps/sec Can the Arduino handle 44.8 kHZ output? I think you are attempting to make it go too fast.by ShadowRam - General
The Supreme Court exempted manufacturers of recording devices from copyright infringement if those devices had a legitimate purpose." AKA you can't sue the makers of VHS recorders and DVD Burners because those devices have legal uses. It's not the manufactures fault that people where using them to illegally copy stuff. Same as photocopiers makers aren't going to responsible for people trying tby ShadowRam - General