Hi everyone Taking a chance here to try avoid a 2-month wait from AliExpress... My Prusa i3 which I was getting out of mothballs had power surge of some description which fried the Mega2560 and the stepper motor drivers. I have sourced a replacement Mega and I believe the RAMPS board is fine because my end stops still work and I can see them open/closed with the M119 command in RepetierHost. Hoby tim_kberg - New Zealand RepRap User Group
Hi All I built a Prusa i3 box-frame printer from parts last christmas, but unfortunately have never fully been able to utilise it. It has always run well from the get go, and I only had to do a rough calibration to get decent prints. Printed off a few things without any hassle at all With a few new things brewing on the horizon, I think its time to let it go to a good home. I am based in Wellingby tim_kberg - New Zealand RepRap User Group
Clogs, it seems your hat knows a thing or two- I lifted the spool on and off a couple of times and did notice a twist in the frame in the order of 1cm or so. It hadnt affected my prints yet as they have all been low profile. I will try a tall print later this week to see how it fares, but a new spool bracket is definitely a top priority now! Thanks for the heads up- it had never even crossed my mby tim_kberg - New Zealand RepRap User Group
Finally got round to summarising my build. Pretty happy with how things turned out in the end, just need to fine tune for bridging etc, but should probably get a bed fan to get that done properly. Parts sourcing: Aliexpress: 5x NEMA 17 motors PCB heated bed Linear guide rails. Note that the rods for the y-axis are longer than specified on the reprap wiki, so cut your threaded rod accordingly (gby tim_kberg - New Zealand RepRap User Group
If you are looking to build a prusa mendel i3, I recently bought some printed/moulded ABS parts from www.replikeo.com. They arrived fairly on time (was over christmas so hard to gauge), and the quality is good. It cost $54 after postage and transfer fees etc. But if someone can offer to do it locally for less, it would be better. The kit is for the single plate version (there is a good build manby tim_kberg - New Zealand RepRap User Group
Southrap- I made the frame myself with 17mm ply my builder friend had available- got him to cut it on the table saw. Attached is a photo just before initial testing. Grael, I ended up going for this ramps kit: www. aliexpress.com. Seems to be working fine once I got the 3rd party drivers. Did a couple of prints with reasonable success, but the one I did tonight for some y-carriage clamps/brackby tim_kberg - New Zealand RepRap User Group
IT LIVES!!!! Turns out that the clone Mega has a different chip (CH340G) which meant I had to look for 3rd party drivers. Found from another forum that I needed to look for CH341 drivers- found one and now its good to go. Turned on the power and all the smoke stayed in the machine the extruder stepper board is not moving the motor (motor works fine if plugged into x axis) so will need to tune tby tim_kberg - New Zealand RepRap User Group
The RAMPS is plugged into the Arduino. there is a green flashing LED on the RAMPS near D10. On the Arudiono, a red LED is permanently on, near the middle of the board. A green LED next to the red LED on the Arduino is flashing in time to the LED on the RAMPS (which I take to mean they are related). If I uninstall the mega 2560 driver and then re-scan for ports, Windows automatically installs iby tim_kberg - New Zealand RepRap User Group
Finally got the frame pieces and brackets, spent all of yesterday and this morning assembling it. Everything is wired up but I have not put mains to it yet. I have plugged the Arduino Mega into the USB port of the computer. It recognises it as COM1, and automatically installs a driver. But when I try to install Marlin from the Arduino software, I cant flash Marlin to it. If I try manually iby tim_kberg - New Zealand RepRap User Group
Cheers Grael I did end up going to Coastal fasteners as they were just down the road from me. Pleasantly surprised at how much it cost. Only waiting on the frame to be cut, and the hot end, printed parts and fans to arrive, then I will start assembling everything.by tim_kberg - New Zealand RepRap User Group
Got a reply on another thread I posted in the general forum- 250 ohms is normal. Thank goodness. A good reminder for any other newbies I supposeby tim_kberg - New Zealand RepRap User Group
OK, thanks heaps. I went back and measured the resistance between two of the live cables and it is 1-2 ohms. Phew. Merry Christmasby tim_kberg - Controllers
Hi all Newbie here, getting started on an i3 boxframe. Was working on the ATX (Antec Neo520) as other parts are still to arrive Cut the connector off the 12V rail, made sure no wires were touching, then connected the green & black terminals on the 24pin plug and turned it on to check they had made a good connection. Fan turned on, was happy, so I turned it off again. Was on for maybe 2 sec.by tim_kberg - Controllers
Merry Christmas all OK, started working on the electronics, as they arrived yesterday. Cut the wires for the 12V rail on the ATX power supply, then connected the green & black terminals on the 24pin plug and turned it on to check they had made a good connection. Fan turned on, was happy, so I turned it off again. Was on for maybe 2 sec. Soldered the live and ground cables into their groupsby tim_kberg - New Zealand RepRap User Group
Parts have arrived, nice quality cheers Waitaki, now to wait for the rest of it to come.by tim_kberg - New Zealand RepRap User Group
That sounds good to me. Let me know how to get it to youby tim_kberg - New Zealand RepRap User Group
That would be great thanks. Will need 3. This is what they are needed for (taken from i3 build >> y-axis). They arent exactly the same but get the job done just as well. *underside of bed* Will PM you my address, and let me know what it will take for postage.by tim_kberg - New Zealand RepRap User Group
If they are printing that piece, yes If they know of another design that they prefer but does the same job, they can print that instead Ultimately, I just need something to hold the bed on the bearings. That was the first piece I could find that looked like it would do the job and still be simple. There are a plethora of lm8uu holders out there www.thingiverse.com www.thingiverse.com After sby tim_kberg - New Zealand RepRap User Group
Went with the parts from Relikeo.com- will post how they turned out. Having a look at the pics, I dont see any y-carriage mounting brackets for the LM8UU bearings- the rework kit they supply has slots cut into the aluminium/ steel/ plexiglass bed so its not needed. Any kind souls willing to print ( and be paid for) 3 carriage holders similar to this www.thingiverse.com? Cheersby tim_kberg - New Zealand RepRap User Group
Thanks Dust From the photos of the auction it looks like the supplied wires are only R/Bk/G, into the endstop, so that should keep things simple... Will keep it in mind when I get them- anything out of the ordinary I will be sure to raise Parts are shipped for 4/7 suppliers from Aliexpress, still to source printed parts and J-head this week. Looking again at the wiki, I see there is a prettby tim_kberg - New Zealand RepRap User Group
Hi all, Looking to source the printed parts for the rework i3 (as per my other thread)- anyone willing to help out and print before New Years? Otherwise will source from www.replikeo.com- should cost around $55 to send here. Many thanks Timby tim_kberg - New Zealand RepRap User Group
Time to bite the bullet and jump into the deep end. I am planning to order the following from Aliexpress in the next couple of days. If anyone sees something they think I should avoid/ change, comments are greatly appreciated. I decided to source most of the parts from one supplier, as they have had a few good reviews on some of the items. RAMPS 1.4 + Mega 2560 + steppers + heatsinks: www.aliexby tim_kberg - New Zealand RepRap User Group
Apologies for the repost- the first one didn't appear //Looking at electronics, and and getting stuck on what may be the best option. Found a RAMPS+mega+steppers+heat sinks kit at www.buyincoins.com (which I have heard good things about) but that is out of stock Aliexpress has a full kit from a supplier that is not tested, but the supplier seems to have good rep www.aliexpress.com Another supby tim_kberg - New Zealand RepRap User Group
Looking at Aliexpress, and trying to decide which RAMPS kit/ mega 2560/ steppers to get. This supplier seems to have a lot of good stuff, with a full set, but its not tested. RAMPS+mega+steppers+heatsink. This kit (again with everything) is "tested", but no-one has bought many kits from them RAMPS+mega+tested www.buyincoins.com also has a kit at a very good price (US$45) and I have read good thiby tim_kberg - New Zealand RepRap User Group
Hey, I am also looking to build an I3, just down in Wellington. At the moment I am trying to decide whether to go with a kit or source all the parts myself and build it over the Christmas break. I have started a thread to try work out where to get everything. I know clogs51 bought a kit (see his thread here : mendel 90 thread ), and he ran into a few problems. So its a risk if you try order a kiby tim_kberg - New Zealand RepRap User Group
Hi All Another newbie venturing into the 3D printing world. I am planning on building a box-frame I3 as it seems one of the simplest ones available. Been shadowing the forums for the last few months and gleaning what I can. Particularly Zerker and his build log At the moment I am creating a spreadsheet for parts based on this BOM: www.kitbom.com. I will post it up once it is complete along witby tim_kberg - New Zealand RepRap User Group