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Rostock, Kossel, Simpson, 3DR, and more. See: http://reprap.org/wiki/Category:Delta. Previously named "Delta Robots and Stewart Platform"
Re: Anyone interested in a differential IR Z probe for deltas? - 10 years ago
Quotedc42 If you want to use the original E3D 30mm fan and duct, you could perhaps adapt this design . My original fan is too wobbly for that! It gets quite loose once you've taken it off the heatsink and replaced it a few times... not to worry - I've got a design that I will try out shortly and I'll publish it if it works. It won't be as close as yours though, unfortunately.by David J - Delta Machines
Re: Anyone interested in a differential IR Z probe for deltas? - 10 years ago
Hi David, Regarding your fan duct - I think it may be giving me some problems. I ended up with a filament blockage in the hot end that went right back to the top of the heatbreak, and I think it was due to the low volume of air passing over the cooling fins. This was with a VERY substantial 40mm fan that was blowing a fair gale when not fitted to the mount - when it was mounted I was getting aby David J - Delta Machines
Re: Repetier-Host crashes randomly on Linux Mint - 10 years ago
I googled the 'mono crashes on Linux' issue - and you may well be right. The error I reported exactly matches other reports I found during the search, for many other software packages that use Mono. Apparently this bug has been fixed by the kernel developers, but it won't take effect until kernel v4.0 is released. Unfortunately Linux Mint tend to delay the release of new software versions untby David J - Repetier
Re: Repetier-Host crashes randomly on Linux Mint - 10 years ago
Can you suggest any ways for us to localise the problem? Does RepetierHost use external applications that perhaps are not used by programs like Proterface? The reason I ask is that Linux Mint has several substitutes for common software such as Java - there are a few of them - and maybe one of them isn't behaving is the same way as the original. I should emphasise that I only want to fix the isby David J - Repetier
Re: Repetier-Host crashes randomly on Linux Mint - 10 years ago
Can you suggest any ways for us to localise the problem? I should emphasise that I only want to fix the issue, wherever it is, not point the finger of blame at Repetier!by David J - Repetier
Re: Repetier-Host crashes randomly on Linux Mint - 10 years ago
Right - I upgraded to 1.5.5 and tried again. Thought the problem had gone away, but unfortunately it happened again this afternoon. Here's the output in the terminal: Unhandled Exception: System.NullReferenceException: Object reference not set to an instance of an object at System.Threading.EventWaitHandle.Reset () [0x00000] in :0 at (wrapper remoting-invoke-with-check) System.Threading.by David J - Repetier
Re: Anyone interested in a differential IR Z probe for deltas? - 10 years ago
Hmm... I thought I had some cork - seems that I don't... I might try to find something different. I tried to insert some exhaust manifold wrap (when used on cars, over 600C on the inside, touchable by hand outside) but it was too loosely woven and fell apart. Anyone in the UK know a source for aerogel?by David J - Delta Machines
Re: Anyone interested in a differential IR Z probe for deltas? - 10 years ago
Quotedc42 I designed a new E3Dv6 fan duct to mount it on: You can find the files at . David, I've built one of these, and fitted my new IR sensor to it - all looks very good, and it's auto-calibrating nicely. I also like the idea of using a 40mm fan, as I've had reliability problems with the 30mm ones (even the one supplied by E3D). My only concern is the distance from the hot-end aluminiby David J - Delta Machines
Re: Repetier-Host crashes randomly on Linux Mint - 10 years ago
Thanks - I'll give that a try... I want to stay with Repetier-Host as I find it very convenient!by David J - Repetier
Repetier-Host crashes randomly on Linux Mint - 10 years ago
Repetier-Host v.1.5.4 Linux Mint v17.2 64-bit Huge amount of disk space Plenty of memory available Repetier-Host works really well under my Linux Mint OS, and I like using it - but it keeps shutting down at random times. It could be just after I connect to the printer, or when I've just loaded a file and clicked on the Slicer tab, or during a print (especially annoying when it's been printingby David J - Repetier
SORRY - wrong forum! Please ignore. - 10 years ago
I posted a question in here - but it was nothing to do with RepRap Host... I wish I could cancel a posting...by David J - RepRap Host
Re: Cherry Pi III Is Available - 10 years ago
David, I guess you're talking about your Kossel - it's a bit hard to 'add a washer' to a Cherry Pi...by David J - Delta Machines
Re: Cherry Pi III Is Available - 10 years ago
Quotedc42 I still haven't worked out what is causing the tilt. Perhaps you have the same problem, and haven't noticed? (Only joking ) I should have said that I plan to get rid of that spiral wrap - or I might separate the bowden tube, and just wrap the wires. I suspect that it's a combination of the fairly stiff bowden tube together with the bundle of wires - one's reinforcing the other.by David J - Delta Machines
Re: Cherry Pi III Is Available - 10 years ago
I found that braided stuff to be more trouble that it's worth! It frays at the ends as soon as you touch it, and it's impossible to make changes to the wiring later on. Oh - and I had the trouble I described earlier with the braided stuff... I'm wondering about modifying the layout so that the bowden tube goes straight up, into a U-bend and straight down again - but I suspect that its springiby David J - Delta Machines
Re: Cherry Pi III Is Available - 10 years ago
I'm starting to pay attention to my Cherry Pi delta once more, with the aim of sorting the problems that bugged me previously. The first one is to do with the 'umbilical cord' leading to the effector: Originally I used one of dc42's IR sensors, but had problems with an uneven print. David had mentioned that having the sensor some way from the nozzle could lead to errors in some circumstances,by David J - Delta Machines
Re: ABS Glue/Juice/Slurry evaporation - 10 years ago
Are you making the ABS juice too thick? Mine is mostly acetone with a few sticks of ABS thrown in - when I wipe it on it just leaves a matt film on the glass.by David J - General
Re: Can I solder PSU wires to RAMPS? - 10 years ago
You could solder on short lengths of thick silicon-covered wire, and use XT60 connectors on the other end - as the name suggests, they're good for 60 Amps current. Both the wire and the connectors can be bought on-line, or from a model aircraft shop if you have one in your area. XT60 connectors (but there are many other suppliers)by David J - General New Machines Topics
Re: How to accurately measure the temperature of the hot end? - 10 years ago
Quotedc42 If your thermocouple probe is small enough, you can feed it all the way into the hot end and down the heat break in place of the filament. I'm not sure it'll fit! I tried your suggestion (from way back) about using resistors instead of the thermistor to see what the GUI displays - that's worked quite well, and is reasonably accurate, so all I'm looking for now is confirmation that theby David J - Reprappers
How to accurately measure the temperature of the hot end? - 10 years ago
Currently I'm trying to get the temperature of my hot end reasonably accurate - but I'm having trouble measuring the actual temperature, rather than what the built-in thermistor & software is reporting. My setup is an E3Dv6 with a Semitec 100kOhm NTC Thermistor (104GT-2) connected via a Duet board. I've been given some guidance on how to adjust the temperature, but I'd like some real, physiby David J - Reprappers
Re: Cherry Pi III Is Available - 10 years ago
I think your technique of using screws and washers to hold down the glass may have contributed to your problem! I designed some hold-downs that were printed in ABS, and which seem to work very well - I've attached some files...by David J - Delta Machines
Re: Cherry Pi III Is Available - 10 years ago
QuoteAndyCart Hi David If you send me the .stl you are printing I'll give it a try on my CPIII and see what I can come up with in terms of Cura settings. Andy Here you go...by David J - Delta Machines
Odd warning message from my Duet board - 10 years ago
I keep seeing an odd error message when I print a file on my delta: T0 Error: Macro file tpost0.g not found I have no idea which code in my file is involved - I only have simple commands in my beginning and end gcode (heater on/off, motors off at the end, and so on). NB: My delta doesn't use a mechanical probe that needs to be activated and de-activated.by David J - Controllers
Re: Cherry Pi III Is Available - 10 years ago
QuoteDavid J Interesting - I haven't tried slic3r yet with this printer, as I normally get quicker prints from Cura. Worth a try, as it won't cost me anything! Well, I had a try, and made some progress. I processed the file in Slic3r without making any changes from those used with my Prusa. The final result was a lot neater, but was slow to produce and very stringy. I went in and made someby David J - Delta Machines
Re: Cherry Pi III Is Available - 10 years ago
QuoteAndyCart I had similar issues with blobby prints after changing to the latest version of Cura. I went back tonV 14 and the issue went away. Andy Interesting - I haven't tried slic3r yet with this printer, as I normally get quicker prints from Cura. Worth a try, as it won't cost me anything! Cheers, Davidby David J - Delta Machines
Re: UK hairspray brand? - 10 years ago
I use Sainsbury's basics hairspray on my glass heatbed. Super-cheap (less than £1 a can, I think). (and I never thought that I'd be answering a question about hairspray on a forum!)by David J - General
Re: Cherry Pi III Is Available - 10 years ago
My CherryPi has the potential to be better (or at least, more convenient) than my Prusa - it's quicker, quieter, and compact enough to tuck under my desk when I'm not using it. The Prusa has to sit on a wheeled trolley so that it can be towed near to my PC. Although taller, the delta takes very little space on my desk so I can get on with other stuff while it's working. My question was more toby David J - Delta Machines
Re: Cherry Pi III Is Available - 10 years ago
Retraction speed = 40mm/sec Retraction distance = 4mm Minimum travel before retract = 1.5mm Minimum extrusion before retract = 0.02mm (All from the Cura slicer within Repetier Host)by David J - Delta Machines
Re: Cherry Pi III Is Available - 10 years ago
I've managed to get the CherryPi printing quite well, but I'm having difficulty getting the print quality acceptable. Here the white pieces are from the CherryPi, and the yellow ones from my Prusa i3. All I've done with the yellow pieces is trim off the brim. The CherryPi is printing with 1.75mm PLA, hot-end temp 210C, bed 60C, moderate print speed - as you can see, the print is very blobby,by David J - Delta Machines
Re: will a inductive sensor work through a glass bed ? - 10 years ago
There's stainless that is magnetic (ferritic, or martensitic - a magnet will stick to it) and stainless that isn't (austenitic - a magnet will not stick, or only very weakly). The sensor won't get as much reaction from a non-magnetic type when compared to the magnetic type. Austenitic is the most common type, while martensitic is used for tools as it is tougher, can be machined, and heat-treateby David J - Reprappers