nophead's full Mendel sets now listed on eMAKERshop. Same great quality as on ebay, just cuts out one of the middlemen. See his listing for full details.by jmgiacalone - Plastic RepRap Parts for Sale
I only have white ABS as feedstock and have printed a full set of Prusa Mendel parts, but I need some bushings, either in PLA or better still HDPE. I plan to sell this set on eMAKERshop, so I'm willing to either pay or trade for printed parts (white ABS only). Or someone could offer the bushings for sale on eMAKERshop themselves if you are interested. Thanks, Jean-Marc.by jmgiacalone - Wanted
Thanks triffid, I'll try that later. spaztik: PORTC is digital IO pins 30-37 on the MEGA, see diagram attached.by jmgiacalone - Firmware - experimental, borrowed, and future
Hey guys, I have managed to get the triffid-release-candidate branch sort of running on my MEGA. Trouble I'm having is with pin assignments. It's probably down to my inexperience but if someone could point me in the right direction I'll be happy to look into the code some more. It appears that if I assign any pin on PORTC (DIO30-DIO37) for my stepper signals, the moves are not executed correctlby jmgiacalone - Firmware - experimental, borrowed, and future
I have a couple of sets printed ready to ship. If you don't mind buying from the UK, take a look at the parts here. And if you're not interested, I would be grateful for any feedback on the reasons why, (my website has not been running long so I am still trying to get a feel for the market). Thanks,by jmgiacalone - Wanted
We have spare capacity on our UP 3D printer. Print quality is excellent and very consistent. For costs and further details please see here.by jmgiacalone - Job Shop: I make stuff!
New set now available here. All parts were printed in white ABS on an UP! 3D printer with a layer thickness of 0.4mm. Print quality is excellent and very consistent.by jmgiacalone - Plastic RepRap Parts for Sale
SOLD - more available soon...by jmgiacalone - Plastic RepRap Parts for Sale
Hello RandR, This is probably a bit late for you, but are you still looking for 3D printed parts? If so, I can most likely help you out. Check out www.emakershop.com Regards, Jean-Marc.by jmgiacalone - Sheffield RUG
Wade's extruder plastic (ABS) printed parts for sale. Please see my website for full details, pictures, and to purchase. Includes: M8 extruder body Beefed up idler bracket M3 grub small gear Large gear All printed on an UP 3D printer, with a layer thickness of 0.4mm. All parts exhibit very good and consistent print quality, and are completely flat. Any questions, feel free to ask.by jmgiacalone - For Sale
Duaner, Thanks for your feedback, it is much appreciated. I have now printed the missing parts and updated the images on my website, (although I have missed 1off z-bottom-clamp and 1off y-belt-nut-trap from the photo, but these have been printed and are included in the set). Sebastien, I have edited the Huxley wiki page as follows: 1. Updated the link to individual parts to now point to the reby jmgiacalone - Plastic RepRap Parts for Sale
Hello Duaner, Please accept my apologies, but those parts were not in the set of models I downloaded from the link on the Huxley wiki page, which points to this thing for individual parts. I have now managed to get the official list of parts from the reprap sourceforge svn trunk, and I can see that the 4off X axis clamps are indeed missing. Please rest assured these will be included in the setby jmgiacalone - Plastic RepRap Parts for Sale
I have a full set of Huxley (mini-mendel) printed parts for sale on my website here: These parts were printed in white ABS on an UP! 3D printer with a layer thickness of 0.4mm. Print quality is excellent and very consistent (no blobs or gaps). The parts include improved components: - Nopheads Motor pulleys thingiverse.com/thing:2079 - Whosawhatsis m6 pinch blocks thingiverse.com/thing:3437 - Erby jmgiacalone - Plastic RepRap Parts for Sale
I am keen to start milling PCBs with my repstrap for my mendel build, so this forum thread attracted me. I have also been looking at the reprap BEEF electronics due to their flexibility and expandability, with a view to creating each tab as a single sided PCB which can be produced using a reprap machine. My question therefore is why should I choose the Gen7 scheme over the BEEF scheme for my eleby jmgiacalone - Next Wave Electronics Working Group
Hi aka47, I see a lot of time has passed since this topic was being actively discussed, I hope it isn't dead. I have recently got my repstrap up and running and am starting to print parts for my reprap. Electronics-wise, I plan to use the BEEF framework as I like the 'plug and play' aspect of it. In fact, I am considering fitting a spindle to my repstrap and milling the PCBs. Do you still haveby jmgiacalone - Controllers
Hi Nophead, I do agree skeinforge is pretty impressive. I guess I was being a little too pedantic. In asking the question I was mainly after finding out whether the output I was getting was acceptable or if I had missed a trick with my skeinforge settings. Your response has given me confidence that I am not a million miles away with my settings. Thanks, jmg.by jmgiacalone - Skeinforge
Hello everyone, I'm not sure if this is the right place for this question, if not perhaps someone could advise me where best to ask. I have a stepper driven extruder on my repstrap which is producing a reasonable print quality. I am, however, always looking to improve my printing. My current printing parameters give me virtually blob free prints using extruder reversals at the end of each threby jmgiacalone - Skeinforge
Thanks Triffid_Hunter, that makes sense. I'll know what to look for from now on. As an aside, I'm planning on using your FiveD_on_Arduino firmware in an ATmega328P for my mendel. I know your firmware will fit on a 168, but I'm hoping I can include SD card functionality by putting in onto a 328. It could take me a while as I'm still learning about programming MCUs, unless it's something you areby jmgiacalone - Controllers
Hello everyone, I am currently in the process of planning the build of my mendel (I have a functioning repstrap), and I am keen to use the BEEF electronics structure, but I am undecided as to which microcontroller to use. Whilst browsing the web with google's help, I came across the Pinguino. At first glance, this looks like a serious alternative to the arduino offerings, with low parts count (by jmgiacalone - Controllers
Hello everyone, Has anybody successfully printed with a bowden fed extruder? My repstrap is now up and running, and can physically print, but I am having a real headache controlling the flow from by extruder nozzle. I am feeding the 3mm diameter ABS filament to the hot end via approx 1m long PTFE tube, where it is heated to extrude at 225 Celsius through a 0.5mm diameter nozzle. I am finding tby jmgiacalone - Plastic Extruder Working Group
Thanks for the advice. I have a maplin store locally so it's easy for me to pop down there and pick up odds and ends. They don't stock the VNP20N07, but I found a HUF75337P3 which looked useable to me, . My electronics knowledge is limited, I'm an automation engineer by trade, so I may have misunderstood the spec of the 2 different components. I am running my heated bed from a laptop power supby jmgiacalone - Controllers
I wonder if anyone could advise me by answering what I'm sure is a simple question. On the Mendel heated bed wiki page the D15 PWM input to the heated bed circuit is left floating. Having just soldered this circuit onto protoboard, when I plug power to it, the LED lights up, which shouldn't happen unless there is a PWM signal (unless I have misunderstood the diagram). If I short the D15 pin toby jmgiacalone - Controllers
Code posted to github: not sure how useful it will be for you, but feel free to do as you please with it.by jmgiacalone - Firmware - mainstream and related support
Hey Greg, NUMTEMPS is defined in Temperature.h, however it is only compiled if #define USE_THERMISTOR is not commented out. I found that the official version of the reprap firmware didn't work 'out of the box' without some tweaking. You could try uncommenting #define USE_THERMISTOR as well as #define MAX6675_THERMOCOUPLE and see if it now compiles. If not, I can publish my code if it's any helpby jmgiacalone - Firmware - mainstream and related support
Hi Craig, Received my Dibond sheet and Kapton tape today. I now need to decide on the best way to heat it! Many thanks, Jean-Marc.by jmgiacalone - For Sale
Well after many hours of banging my head against what seemed to be a brick wall, I believe I have found the solution. I read somewhere that the MAX6675 could not be expected to produce more than about 5 reads per second. My test program did 1 read every second, and so worked as expected. The FiveD firmware, however, read the MAX6675 much more frequently (I had #define SLOW_CLOCK 5000 in configuby jmgiacalone - Firmware - mainstream and related support
Well, I downloaded the firmware from here a few days ago. File was reprap-mendel-20100719.zip The configuration.h file has the following code: // Set to 1 if enable pins are inverting // For RepRap stepper boards version 1.x the enable pins are *not* inverting. // For RepRap stepper boards version 2.x and above the enable pins are inverting. #define INVERT_ENABLE_PINS 1 #if INVERT_ENABLE_PINSby jmgiacalone - Firmware - mainstream and related support
Hi all, Found a bug in sStep(). As I'm running easydriver chips to run my steppers, I required ENABLE_ON to be high, and spotted that the extruder stepper enable code did not consider the constant INVERT_ENABLE_PINS as per the other motion axes. See change below: void extruder::enableStep() { //digitalWrite(motor_en_pin, 0);//JMG 2010 07 22 digitalWrite(motor_en_pin, ENABLE_ON); } voidby jmgiacalone - Firmware - mainstream and related support
Hello All, This is a bit of a plea for help, as I cannot fathom what is happening within the firmware to cause the issue I have. I have just completed the mechanical assembly of my repstrap, and have come to test the functionality of my extruder. Unfortunately, the firmware appears to read the temperature correctly at power up, but the value then never changes until the power is cycled again.by jmgiacalone - Firmware - mainstream and related support