Show all posts by user
Printing issues ...
Re: XBox 360 PSU confusion - 11 years ago
No offense taken. I'm just pointing out that per published RepRap wisdom, a printer with a heated bed needs 220-240 watts of 12V power and the biggest xbox 360 power supply is only 203 watts: http://reprap.org/wiki/Power_Supply QuoteRepRap wiki There are several versions, choose the 203W version. Note that the power may be insufficient for some heated beds. The PSU will shutdown if an overloadby vreihen - RAMPS Electronics
Re: LCD is barely visible - 11 years ago
There may be a brightness potentiometer on your electronics mainboard or the LCD itself that needs adjusting for the proper contrast.....by vreihen - Reprappers
Re: HELP MEGATRONICS - 11 years ago
I am running my SainSmart Megatronics 2.0 with A4988 stepper drivers at 0.4V calibration on a Delta printer, and have had no problems with skipped steps or overheating motors/drivers. Follow the A4988 stepper driver calibration instructions to the letter with a multimeter. SainSmart didn't give you jumpers or stepper motor connectors, and you can take it to the bank that they did not trim the sby vreihen - Reprappers
Re: Print sticking *too* well - 11 years ago
I have had luck printing PLA on bare glass, heated to 65C and wiped down with foaming glass cleaner as the bed warms up.....by vreihen - Printing
Re: Cherry Pi III Is Available - 11 years ago
Sigh...I *still* haven't quite finished printing CP Mk1, and you're already up to CP Mk3! Seriously though, I like the evolution among the designs, and that you keep improving it where other designs have become stagnant. Keep up the great work.....by vreihen - Delta Machines
Re: Waves in the build? - 11 years ago
Check for loose motor mounts, or pulleys that don't have their set screw tightened all the way down.....by vreihen - Delta Machines
Re: XBox 360 PSU confusion - 11 years ago
The 11A circuit only feeds the heated bed. If you don't have one, you don't need to hook up the 11A power at all. With that said, you might want to double-check your power budget math with the xbox 360 power supply, as I'm not certain that it can provide enough 12V amperage to run both the heated bed and rest of the printer reliably.....by vreihen - RAMPS Electronics
Re: Most popular 3d printer forum? - 11 years ago
QuoteOhmarinus Don't answer it! He's probably looking for the busiest forum so he can spam the scheiss out of it! I'm sorry, but I have to share our secret online hiding place: The most popular 3D printer forum - millions of readers looking to paten^H^H^H^H buy anything!by vreihen - General
Re: Can anyone tell me what thermistor is used in this hotend? - 11 years ago
Are you sure that you are measuring the correct wires? The thermistor should be the thinner wires, and the heated resistor the thicker ones.....by vreihen - Reprappers
Re: problem with letters - 11 years ago
I'm amazed that your slicer corrected the spelling of "extRuder" on the fly..... Quotealfadexby vreihen - Printing
Re: Cherry Pi II Released - 11 years ago
HoloPed's original version (someone else's build pictured below) had the switch above the hinged plate: Andy's re-design is a vast improvement over the original. Removing the hotend for maintenance requires dismounting the switch in the original design, whereas Andy's rework has it in the base and out of the way. (When you do not have the proper small screws for the switch and decide to attaby vreihen - Delta Machines
Re: Can anyone tell me what thermistor is used in this hotend? - 11 years ago
Maybe the thermocouple is shorted out? As a side note, I'm not a J-head user, but suspect that you'll have problems with this hotend if it came with the cooling slots covered in kapton tape as shown in the eBay listing.....by vreihen - Reprappers
Re: Burnt component? - 11 years ago
The 11A power rail is only for the heated bed. The 5A rail powers the RAMPS board, steppers, and nozzle heater(s). Ignore the 11A rail in your troubleshooting.....by vreihen - RAMPS Electronics
Re: Cherry Pi II Released - 11 years ago
Andy, Have you noticed any unwanted nozzle movement problems with this design? My version of HoloPed's Thing:189393 (recently removed by creator in MakerBot patent protest) kept lifting away on the hinge axis from the print surface on early layers or with the slightest over-extrusion even with a few wraps of a heavy rubber band for the spring. I eventually used a cable tie to hold the hinge clby vreihen - Delta Machines
Re: repetier-host improvement suggestion - 11 years ago
The Repetier support forum is hosted on this very site. You will probably have better luck scrolling down a few pages on the forums list and posting this in the Repetier forum.....by vreihen - Developers
Re: A review of Sainsmart - 11 years ago
I forgot to add that SainSmart's Megatronics 2.0 board is missing several key silk-screened labels from the board, and it impossible to wire without downloading the official datasheet from another manufacturer's web site to look at pictures of the board with complete pin/connector labels.....by vreihen - General
Re: A review of Sainsmart - 11 years ago
Don't forget about the complete lack of documentation in their "kit," and how I had to source stepper motor plugs and jumpers despite my "kit" coming with the stepper motors. I'll bite my tongue on the packing job, with five stepper motors rattling around loose in a box with a controller board, graphical LCD, and a (warped!) Mk2 heated bed. Oh, and the icing on the cake was that one of the ribbby vreihen - General
Re: !Attention! I figured out why peoples Arduino's go up in smoke!!! - 11 years ago
Quotechris33 incorrect wired endstops to my knowledge endstops well mechanical ones arent polarity dependant A few popular electronics bundles are shipping with clones of the old Makerbot mechanical endstop boards, with a support URL screened on the board that's 404 when you go to it for wiring info. These endstop boards have added electronics and a status LED, and need to be wired for +5V, groby vreihen - General
Re: Another noob with another rostock endstop issue 2 issues (pardon) - 11 years ago
The drinks will taste so much better when they are coming from a 10mm cube-shaped shot glass off of your new printer.....by vreihen - Delta Machines
Re: !Attention! I figured out why peoples Arduino's go up in smoke!!! - 11 years ago
Would you care to share your root cause analysis chart with the relevant details that led to your conclusions?????by vreihen - General
Re: Another noob with another rostock endstop issue 2 issues (pardon) - 11 years ago
I second what Andy said. Slowly push your carriages down as close to the bed as you can get them with the power off, then turn on the power and send a home command if your printer isn't set up to home automatically on power-on. As soon as the carriages start to go up, trigger one of the endstops with your finger and see which carriage stops. If it isn't the one that you expect, swap the wiresby vreihen - Delta Machines
Re: End Stops backwards - 11 years ago
There was a thread here a few months ago detailing the SainSmart endstops (clone of what you have) and how to wire them. Read it TO THE END, as boards were fried by bad directions in the middle.....by vreihen - Delta Machines
Re: Trouble with RAMBO/GLCD - 11 years ago
Check your endstops with M119. They are probably wired closed instead of open, which causes the controller to only allow movements in one direction.....by vreihen - General
Re: abs or pla? - 11 years ago
My vote is PLA, since it doesn't require a heated bed.....by vreihen - Printing
Re: RADDS RepRap Arduino-Due Driver Shield (32bit) - 11 years ago
How much of that 49,90 euro is VAT, and do you have to charge/collect it for merchandise being shipped to the US? My feeling is that $68 US ($89 with shipping) is a little too high on this side of the ocean, when the buyer would still need to add an Arduino Due board to use it. Just trying to evaluate the potential US RADDS market size for 10+ pieces.....by vreihen - Controllers
Re: who should speak at a 3DP/AM conference? - 11 years ago
QuoteMattMoses Most of the people who post here are technically-minded hobbyists and/or small business people. Strong on technical matters, but generally have no clue about how IP law actually works. I don't understand what a "debate" between such a person and a lawyer would accomplish - they would be speaking different languages! From a Roman Coliseum perspective, I think that the bigger questiby vreihen - General
Re: Program flowchart of firmware. - 11 years ago
Oops, my bad. I was thinking G-code. Considering that I find myself basically tweaking slicing settings for every print job with the current crop of PC slicing software, I don't think that the current generation software is ready for being embedded just yet.....by vreihen - Developers
Re: Where to get 20x20mm aluminum extrusion - 11 years ago
Their US web page said the same thing, but they created the accounts for everyone anyway as long as you paid by credit card...and even gave us a free $150 of "house money" to start playing with during the First150 promotion. If the European office will not do the same, I wonder if Carey and crew can enter/process orders through the US office and ship them out of Europe?????by vreihen - Extruded Aluminum Frames
Re: Program flowchart of firmware. - 11 years ago
QuoteTraumflug STL? Like uploading 3D models directly to the controller? On current controllers, this is pretty much impossible, there isn't sufficient processing power. Not even on the ARM based flavours. And newer controllers tend to add sort of a normal PC (RaspberryPi or similar) alongside the realtime controller. Smoothieboard and clones present the on-board SD card socket as a USB thumb drby vreihen - Developers
Re: Little Brass extruder jamming - 11 years ago
Did the reviews specifically cover their black filament, or all of their filaments in general? Black filament seems to be the industry's dumping ground for recycled plastic, regrinds, floor sweepings, and anything else that they can throw in as filler that will ultimately jam your hotend. Try a lighter color filament, and see if the jamming problem goes away.....by vreihen - General