Show all posts by user

Re: Weird transistor behavior: always 24v on (+) and 22v on (-) ?!? [Azteeg X3 pro] - 7 years ago

Thanks so much for the input regarding the voltage! that's news to me and a load off my mind! I thought I fried the board! Regarding the Diodes: Based on their location, I'm 99.9999% sure that they are not related to the steppers based on location (far away from stepper drivers, very much adjacent to each hotend output). Does anyone have an azteeg they can flip over and check to see the status

by Leav - Controllers

Weird transistor behavior: always 24v on (+) and 22v on (-) ?!? [Azteeg X3 pro] - 7 years ago

Hello, Thank you for taking the time to try and help me. Upon first wiring my 24v hot end to my 24v powered Azteeg X3 Pro, the hotend started heating up immediately on power up. I confirmed it was not a firmware issue by uploading the "Blink" arduino sketch. I pulled out my meter and indeed measured 24v on the (+) output for all hot end outputs on the board. I then measured the voltage between

by Leav - Controllers

Any German reprappers willing to help with shipment from a vendor which won't ship to my country? - 10 years ago

I would like to order a small quantity of profiles from german based company MK-Group, but they don't ship to Israel. Anyone willing to help out a stranded reprapper? Thanks! -Leav

by Leav - Reprappers

Ordering a silicone rubber heater from a chinese company - any suggestions? share your experiences with chinese shops on Alibaba please! - 10 years ago

Hello, I am designing my own 3D printer and am planning to order a custom silicone rubber heater for the heated bed. I would like to run it off of mains voltage (220v here). Any suggestions regarding which company to use or what to look out for when contacting with them? Thanks! -Leav

by Leav - Developers

Re: Point of Contact/Phone # for Panucatt - 10 years ago

I, too, am looking for a phone number for them...

by Leav - RAMPS Electronics

Driving a DC PCB heated bed with AC mains? - 10 years ago

Hello, I'm in the early stages of desiging my own kossel-style printer. I would like to drive the heated bed with mains voltage in order to reduce the power requirement on the power supply. Even if the following is an insane idea, I would appreciate an explenation along with the name-calling! So, the basic idea is to order a board like this, and power with mains voltage. BUT! since just connec

by Leav - Controllers

Re: Reporting on a new (?) bed material for printing on without a heated bed and an improvement on an old extruder design - 13 years ago

it's about 1.25 mm thick, and made from about 6-8 plies of thinner paper. I have an idea: if someone would volunteer to test the material I'll send you a sample and you can get a feel for it and go to a local art or office supply store and find out it's name. Any volunteers?

by Leav - General

Re: Reporting on a new (?) bed material for printing on without a heated bed and an improvement on an old extruder design - 13 years ago

we got it from the local office supply store on campus... it costs about 1.5$ for a 1.2m by 0.8 meter sheet... maybe a cheap version of water color paper? even if it's slightly expensive, it seems that it can be printed on multiple times due to only partial delamination of bed material when removing the model and the multiple plies inside the material

by Leav - General

Re: Reporting on a new (?) bed material for printing on without a heated bed and an improvement on an old extruder design - 13 years ago

Here is the 2nd video, I destroy the material here so you can see what it looks like. Again, please view both video in high quality (720p) to see the texture I think it might be called paperboard, does that make sense?

by Leav - General

Re: Reporting on a new (?) bed material for printing on without a heated bed and an improvement on an old extruder design - 13 years ago

Dabble: What I know here as bristol has a smooth finish, this is more coarse and pulp-ish. chase82: definitely slightly rough. it reminds me of scrapbooks too! something you'd see dried leaves in maybe? I'm uploading a video of me tearing it apart, it is made of mutiple layers and feels as if they were compacted together to form the final material. Architecture students here use it to build mo

by Leav - General

Reporting on a new (?) bed material for printing on without a heated bed and an improvement on an old extruder design - 13 years ago

Hello everyone, We've made a nice discovery recently which shows promise for those without heated beds, I'd like to tell you what it's called but here is a language barrier here. I know how it's called in Hebrew (קרטון ביצוע) but not in English. Here is a picture of it: stack of it it's a heavy paper/cardboard made from a rough pulp, here is an interaction video with it... maybe it'll help you

by Leav - General

Re: Extruder Stepper Not Spinning - 14 years ago

> never worked right, probably a DOA board... ugh > waste of $50 You should contact makerbot. they might (and should) refund you if the board was shipped to you defective (i.e. DOA).

by Leav - General

Re: Extruder board problems - 14 years ago

steveo290 Wrote: ------------------------------------------------------- > I contacted TZ and worked with Lambert on this > issue. Either the extruder did not have the proper > boot loader on it or I screwed something up, I > ended up sending it back and having a new one sent > to me. Waiting on that to arrive by snail mail and > when it does I will attempt to try this again and

by Leav - Reprappers

Re: Wait List for getting parts printed at the technion - 14 years ago

It is important to note that anyone can register (even if you don't have the electronics) - it's just that people with the electronics will be given priority.

by Leav - Israel, Tel Aviv RepRap User Group

Wait List for getting parts printed at the technion - 14 years ago

We are not sure when we will start printing, but when we do we will offer parts at cost to Israeli RepRappers. QuoteRegistration Form Eventually the RepRap team at the Technion (Haifa, Israel) will start printing parts for the Israeli community. Price: cost of materials + 4 Hamburgers. Prerequisites: Parts will be printed only for people who already possess the electronics, in order to avoid

by Leav - Israel, Tel Aviv RepRap User Group

Re: darwin dc motor won't turn - 14 years ago

Funny Thing happend... I opened up the newset host software and it did not have the FiveD setting. I don't mean that it was false, it was simply not there! Thanks to Jonathan's explanation I immediately traced this back to the properties file... I deleted it and bang: the FiveD parameter appeared! i think this should maybe be classified as a bug? the software should know about old properties fi

by Leav - Reprappers

Re: darwin dc motor won't turn - 14 years ago

Jonathan, First, thank you very much for the comprehensive explanation about the properties file. Regarding the FiveD flag.... QuoteJonathan I hope this helps explain what you have discovered "the hard way" I'm hard pressed to imagine anyone finding out about this in a more convoluted way, but at least I've learned a whole lot! I'm still skeptic about my host software containing that pre

by Leav - Reprappers

Re: darwin dc motor won't turn - 14 years ago

so this was just pure luck? where are the preferences stored, by the way?

by Leav - Reprappers

Re: darwin dc motor won't turn - 14 years ago

and finally all the pieces fall into place. I was using: reprap-host-windows-20090804 which (mercifully) does not have a reprap.properties.dist file. I just happened to have: reprap-host-windows-20081218 which I found when searching for "reprap.properties.dist" and this successfully turns the motor! 3 cheers for legacy software! and ofcourse for everyone who helped us out along the way!

by Leav - Reprappers

Re: darwin dc motor won't turn - 14 years ago

thanks nophead! my recent love affair with python must be getting to me I'd appreciate any help regarding the preferences file! does anyone have a clue about this?

by Leav - Reprappers

Re: darwin dc motor won't turn - 14 years ago

As I said, I am working with Asaf on this. here is where we are now: changed the set_speed function in the following way: Removed (commented out) portions regarding stepper motor. (for clarity) Commented out wait_for_temperature() (for testing). Here is the code now: void extruder::set_speed(float sp) { e_speed = (byte)sp; if(e_speed > 0) //wait_for_temperature();

by Leav - Reprappers

Re: darwin dc motor won't turn - 14 years ago

Right now we hit ramp on rxtruder tab, and we can see the temperature rising slowly (according to the ramp rate) to the target temperature, which we set in extruder tab (not the preferences page). The temperature then holds at that temperature +-8 degrees. Is it possible that the arduino either has a different extruding temperature set, or that it is seeing a different temperature? -Leav

by Leav - Reprappers

Re: darwin dc motor won't turn - 14 years ago

Hi Everyone, I'm working with Asaf on this printer. Following nophead's comment, I have a question and an idea which I would like to bounce off you guys: The question: Do the endstops indeed control the bahviour of the extruder motor? (We'll verify this tommorow by reading the code) If this is indeed the case: The endstops we got from the RRRF for this printer WERE INVERTING. The MIN endsto

by Leav - Reprappers

Re: Sketch size too big when enabling Thermistor on Gcode_Interperter - 14 years ago

got it, will do. (already added information to wiki)

by Leav - Firmware - mainstream and related support

Re: Sketch size too big when enabling Thermistor on Gcode_Interperter - 14 years ago

FOR POSTERITY! problem solved by compiling with arduino15. I hope this helps someone!

by Leav - Firmware - mainstream and related support

Re: Israel, Tel Aviv - 14 years ago

90% done at the technion (haifa). PM me for more info, but there is already a line for printing parts (currently 4 printers have been promised to various people). -Leav

by Leav - Israel, Tel Aviv RepRap User Group

Sketch size too big when enabling Thermistor on Gcode_Interperter - 14 years ago

Hi, using Gen2 electronics and Gcode_interperter code, I uncomment the following line: // Uncomment the next line if you are using a thermistor; leave it if you have a thermocouple #define USE_THERMISTOR but now the sketch size is too big for the Arduino. This is on arduino18. Any clues here? Thanks, -Leav

by Leav - Firmware - mainstream and related support

Re: XYZ jog problem. no reverse! - 14 years ago

t3kboi, any progress? (i'm curious )

by Leav - RepRap Host

Re: RepRapper requesting advice regarding Darwin Extruder - 14 years ago

Wade, Thanks for the advice and the offer! (though I'm a little confused how you got to thinking I'm in canada... I'm from Israel! ) Your design does look amazingly simple and more reliable! My spare stepper motor is a NEMA23, which I think is quite a bit heavier than the NEMA17 you are using. would this be a problem? (I could always order a NEMA17 if I have to). Regarding the offer to send the

by Leav - Reprappers

Re: XYZ jog problem. no reverse! - 14 years ago

I had the same problem and the problem WAS the end stops. make double sure you checked this by changing the value in the "inverted" define. though that seems unlikely to be the problem in your case. so basically as far as you can tell Host Software: OK (sending out correct G-code) Sanguino/arduino: OK (dir pin inverts, and step pin is pulsed) Stepper board: ? Motor: ? if my above summary is t

by Leav - RepRap Host