Thanks Olaf, Yes you're dead on regarding the bespoke firmware, and making that easy to incorporate. The more the features, the more work required. Any London based programmers who relish a challenge? please get in touch. Typical startup co-founder/employee opportunities if there's a market.. woodsmoke 3Distributedby Woodsmoke - Look what I made!
Hi RepRappers Here are a few images of a 3D printer project that's been on my workbench for too long now. It's best description is an 'Easy Epic Win for novice Engineers'. The basic motivation is to make an educational RepRap platform that is robust enough to endure repeated and amateurish dis/re-assembly and a long tail of user upgrades and accessories, (some of which have been designed alreadyby Woodsmoke - Look what I made!
Just PM me.by Woodsmoke - Job Shop: I make stuff!
Richgain let me in on a solution. Click the Split button for your multi-part stl but don't move the shapes generated. This will ensure Slic3r slices them properly. Perhaps this is what VDX was suggesting, it's difficult to tell.by Woodsmoke - Slic3r
My last post was a somewhat accusational sorry. Just been sitting in from of my printer too long. I have refitted the J Head once so that explains it, thanks. It continued printing PLA after the refit with no trouble, it was only when I tried ABS that the additional heat, or larger, hotter J Head? started loosening the extruder's grip. And the wobble symptoms appeared. The revision looks greatby Woodsmoke - Mendel90
245 degrees + the new short black J-Head might be asking rather a lot of the ABS push-fit socket you've designed. How about a redesign of the around-the-nozzle cooling duct to direct air at the top of the peek section? As it is the duct prohibits other cooling fans being installed.by Woodsmoke - Mendel90
Hi, My Sturdy Mendel90 print bed struggles to retain consistent positioning from layer to layer, The effect is random and sometimes happens only slightly, or won't happen at all. When it does the result is poorly stacked filament on the Y axis: This print was attempted at 32mm/s with 5mm/s jerk and 2000mm/s/s acceleration. To begin with I checked for mechanical problems like belt slippage, lby Woodsmoke - Mendel90
The.9.8 Slic3r settings are 0.5mm width and 0.35 height. They seem pretty standard to me. Same with the Stl file. It was downloaded and slic3red 'as is'. The original post is disingenuous. I am very grateful to Sound for this free and friendly software. I didn't want to come across as ungrateful. Never the less this seems like a shortcoming in the software that he would prefer to be aware of. Oby Woodsmoke - Slic3r
Cheers Viktor, A multiheaded printer is certainly on my to do list. In the mean time consider there can be no herringbone planetary gear assembly without printing the whole thing at once. Slice the original .stl anywhere you like and you get 9 perimeters. 7 outer and 2 inner. They never overlap. So why is Slic3r taking short cuts?by Woodsmoke - Slic3r
What does one do in Slicer to avoid this issue?by Woodsmoke - Slic3r
Hey Orcinus, Perhaps you've figured this one out already, or have moved onto another hobby entirely, who knows. Regarding the photo of your single walled print: The horizontal banding went away when you turned the fan off. The high air flow from the fan is cooling the extruded filament enough to cause it to contract slightly, in the short period before the next layer is added. The perimeter cooby Woodsmoke - General
Sorry jseaber, for this tardy reply. I've had a temporary contract for the last month that ate all my time. Teacup rather confused me I'm afraid. I don't believe I got it working. I did work out that my blobbing problem was speed related though. Increasingly slower test prints reduced then eliminated the issue. That leads me to believe that the post retraction blob, when the printer sets off aby Woodsmoke - General Mendel Topics
Hello, I'm get blobbing on the test cube too, regardless of trying large variations in speed, temperature and retract settings. Different firmwares don't help either (recent Sprinter and latest Marlin with different advance settings. Both produce the same result. It's to be expected when one is a direct derivative of the other perhaps. I am trying Teacup today.) Then l noticed something peculby Woodsmoke - General Mendel Topics
Hello, Perhaps you can help me with this: Recently Woodsmoke, my printer, struggles to replicate stls involving circular edges accurately. Attempting to print overtly circular components results in scruffy, egglike nonsense. The symptoms are already discussed under another thread: [ forums.reprap.org ] Some alteration made to Woodsmoke's mechanics has introduced backlash. Prints of the Wades Eby Woodsmoke - Skeinforge
Hey Sublime, At huge risk of breaching usual forum etiquette (hijack, necro etc. etc.) how about salvaging a bicycle break line for the bowden cable of your next 1.75 mm bowden extruder? Break cables are 2mm internal diameter odd and lined with PTFE. I have a cable I keep meaning to work up into a full extruder. Can't seem to find the time. woodsmoke.by Woodsmoke - Skeinforge
I wired my Mendel 'southpaw' if you will, so the motors were spread around the machine. Aesthetic preference really. It doesn't matter which side the motor sits, provided you ensure the printer carriage is attached to the X-axis belt as normal. If you get the carriage the wrong way around as well then you will have issues with the rest of the build and with prints in general. The X-axis will homeby Woodsmoke - General Mendel Topics
Cheers madscifiby Woodsmoke - General Mendel Topics
Hi Brian and Richard, With luck I might be the third reprapper Scot? Unlikely but I like the idea of a podium finish for pioneering. Currently living in Edinburgh and commuting to college in Glasgow. Bought my components in Oct last year. They took a while to arrive. I'm also on a busy course so reprapping time has been limited. Sounds like I'm at roughly the same stage as you Brian. Woodsmokeby Woodsmoke - Reprappers
I've had this problem too. I get both the occasional pause between loops of perimeter or infill. These last from 2-3 seconds. And also very rarely an almost indefinite stop that ends up with me cancelling the print. I thought I had solved the latter issue with a shorter USB cable, but it might resurface, given what you have stated. I use Repsnapper v352 to send gcode. Woodsmokeby Woodsmoke - General
I regret not being more active on this thread. There's a photo of the banding I'm getting with opaque PLA on my webpage. Is there a thingiverse number for Greg's toothed bearing? Woodsmoke r:-7 [ resistentialist report ]by Woodsmoke - General Mendel Topics
The other possibility is you have bought optos from [ mendel-parts.com ]? I have 'old' optos, rather than 'new' ones. The difference is how the opto informs the chip it has been triggered. Upon trigger, some optos send a signal, some stop sending their signal. They're the inverse of each other if you like. I recently upgraded my firmware and had the same trouble as you just described, mechanicallby Woodsmoke - General Mendel Topics
>Actually, after watching it print a few more open X carriages and whatnot, I notice that the OpenX bearings have a similar >issue making contact, causing a bit of wobble as it is pulled back and forth. I'll probably just warp those into place and they >should be fine, but again, maybe 'raising' the hole on the 330 bearings would help. Just a heads up, I printed the openX a few days agby Woodsmoke - General Mendel Topics
After a recent disassembly I recall some trouble with a hot end that wouldn't get hot. Eventually I found that the tiny metal spade clamps in the molex connector were being forced out of the connector when I pushed it onto the PCB. It was easy to miss given that removing the molex connector allowed the wires to descend back to where they should be. It's unlikely, but perhaps you have a similar prby Woodsmoke - General Mendel Topics
Nice one Buback, Just got a break from college to print your open X carriage and you're already onto the next project. I must admit I like Richrap's idea for using the tslot for your runners somehow. It makes elegant use of the most highly engineered part of the printer. But your point about containing all the RP parts inside the frame so you might service all sides with peace of mind is a soundby Woodsmoke - General Mendel Topics
Hah. I happen to be an expert. Try Repsnapper out. It's very simple to start printing STLs with Repsnapper. Then you can do a little reading around the forums, and Reprap in general. What you are asking is already covered in numerous tutorials. Learn Gcode too. Learn to read it like Neo reads the Matrix. Then try out Skeinforge. Calibrate with the various calibration model files on Thingiverse.coby Woodsmoke - General Mendel Topics
Nice one Buback.by Woodsmoke - General Mendel Topics
Of course, just wire up to the 12v from the laptop brick. Stupid. About the Axle. All I really meant was imagine the pencil prototype you've built already, except the pencil is twice as long, and it tunnels through all three components on each runner. That way the runners are held more rigidly against their tendency to rotate around their bars due of the weight of the build plate. On reflectionby Woodsmoke - General Mendel Topics
Thanks Greg. Bought some springs but I've yet to install. Will do that now. Woodsmoke r:-9by Woodsmoke - Skeinforge
>Can you confirm that they are 215mm apart along the x direction, and 124mm along the Y? ------- I've got 124mm along the Y but more like 218mm along the X. One pair are 218 and one pair 218.5mm, centre to centre. That's mendel-parts.com aluminium build plate I'm measuring. Never learned what the official distance is suppose to be. My experience with PLA is limited to only so many test cubeby Woodsmoke - General Mendel Topics
Fantastic work buback, I eagerly downloaded a copy of the X-axis to try out, just as soon as I sort out my print calibration. It's taking a while. A few thoughts on the Y-axis. You've got a lot of cantilevers in the current iteration. Again over the longer term they might be given to wandering around due to continued pressure. This is perhaps especially true for the four build plate mounting armby Woodsmoke - General Mendel Topics