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General discussions. For specific printers / electronics / fabrication methods / softwares, please see other sections.
Re: Pulley for y-axis / length of y-motor shaft - 12 years ago
Cheers. The cable-tie certainly seems to have helped the problem - at least temporarily. The more permanent solutions yourself and Lanthan designed look great. I need to get machine actually printing properly before experimenting with those sort of things though . Thanks.by dslc - Reprappers
Pulley for y-axis / length of y-motor shaft - 12 years ago
Hi all. I'm having issues with the pulley gear attached to my y-axis motor. The timing belt is slipping off the end. I was hoping to turn the pulley around (to have the part with the grub screw on the outside of the shaft), but the shaft is not long enough to do that. I was thinking of disassembling the threaded rod and removing the M8 bolt to the right of the motor bracket (see photo). Any suggby dslc - Reprappers
A reprapper in Dublin - 12 years ago
Hi all. I can't remember if there are Reprappers in Dublin already or not. Are there? Anyway, I'm based in Dublin and more-or-less have my Reprap running now. I'd say it's closer to "less" at the current point actually - coz the quality of my prints are very poor and I haven't diagnosed the problem yet. Hopefully it's something minor and I just need to calibrate something more carefully - but thby dslc - Ireland RepRap User Group
Re: Marlin test branch - compilation errors - 12 years ago
Hi Bantha. Hi Traumflug. Sorry for the delay - and thanks for responding. I haven't really had a chance to look into this any further, but it's no big deal to be honest. The Teacup firmware is working fine for me - I was just curious to experiment with other firmwares. If I'm really determined to get Marlin working, and can't resolve the issue myself, I might file a bug report. Davidby dslc - Firmware - mainstream and related support
Marlin test branch - compilation errors - 12 years ago
Hi all. I am hoping to try the 'Test' branch of the Marlin firmware, but it is not compiling. (The main branch doesn't work with Gen7 v.1.3.0 board AFAIK - due to issues with temperature sensing before activating the power supply.) Here are the errors I am receiving: Marlin.cpp:1092:22: error: operator '>' has no left operand Marlin.cpp:206:30: error: expected primary-expression before ‘,’ tby dslc - Firmware - mainstream and related support
Re: Incorrect scaling (compression) in the X-Y plane - 12 years ago
Thanks for the advice guys. Looks like the belt tension was certainly a factor - if not the sole cause of the problem.by dslc - Reprappers
Incorrect scaling (compression) in the X-Y plane - 12 years ago
Hi all. I've just started printing and am having issues with scaling in the X and Y directions. For example, I tried to print a 20mm box and it comes out at 19mm x 17mm in the X and Y directions respectively. When the prints are smaller (e.g. one of the belt clamps for the Prusa Mendel), it's more noticeable. E.g. the holes for M3 Nuts in the belt clamp I printed are seriously out of proportion.by dslc - Reprappers
Re: Hot-end/extruder issues: 1. filament slipping, 2. delayed filament extrusion - 12 years ago
Thanks for the advice all. Just a quick follow up ... QuoteJim K. Have you tried a filiament guide? I find it works much better. After reading your suggestion I put together a makeshift guide using a small wood block (approx. 8mm x 7mm) with a small groove on one edge for the filament. And it just got me through my first proper print (the 20mm box from spacexula's calibration set)! So, tentativby dslc - Reprappers
Hot-end/extruder issues: 1. filament slipping, 2. delayed filament extrusion - 12 years ago
Hi all. Am just wondering if anyone has advice regarding two issues I've encountered with my GregFrost's Hinged Wade's Extruder and a self-made hot-end. Hobbed bolt and filament slipping Firstly. The PLA filament (1.75mm) I'm using is slipping to the side (i.e. left or right) away from the hobbed part of the bolt - and consequently not being forced into the hot-end at all. Has anyone else encouby dslc - Reprappers
Re: where to buy acetone in IRL - 12 years ago
Tesco sell (or at least used to sell) a cheap nail polish remover which contains acetone. It's not pure acetone - it also contains aqua, propylene glycol, glycerin, and 3 other ingredients. It seems reasonably effective when I have used it (e.g. to soften PLA), but I haven't used pure acetone so can't compare. It's probably worth trying if you can't find something else.by dslc - Ireland RepRap User Group
Re: Extruder Jams after a few layers. - 12 years ago
I've been trying to print with 1.75 PLA, but am experiencing similar problems. The PLA has hardened on the inside of the PTFE insulator - effectively blocking any more filament from getting through. I have immersed the PTFE in an acetone solution (i.e. cheap Tesco nail varnish remover ) in hopes that this will soften it. Is this a waste of time though? (I know it can take approximately a day forby dslc - Reprappers
Re: [Off-topic] non- or semi-commercial engineering - 12 years ago
Hi all. Just to follow up on this ... As I implied above, I am keen to set up an engineering organisation with a "semi-commercial" outlook in the very near future. This would be in or near Dublin and we would probably be working on Reprap machines initially (probably the Prusa model specifically) - but the scope of activities would not necessarily be limited to this in the medium/long-term. I aby dslc - Ireland RepRap User Group
[Off-topic] Semi-commercial engineering - 12 years ago
Hi all, I'm an engineering student and am hoping to set up some sort of "semi-commercial" engineering initiative in the coming months. I'm looking for people to do this with. I'm based in Ireland, but I don't think that necessarily precludes the possibility of working with people elsewhere (at least to a certain extent). To understand what I mean by "semi-commercial", please read this thread onby dslc - General
Re: Why? do we use thermistors the size of pixi-dust –> an alternative - 12 years ago
Cool. Thanks Rich. I've gone ahead and ordered from Radionics anyway.by dslc - General
Re: Why? do we use thermistors the size of pixi-dust –> an alternative - 12 years ago
Hi Mike. 3D2B Wrote: ------------------------------------------------------- > Agreed about the pixie dust sized thermistors. > Having snapped a lead off one I bought, I switched > to a radial : > > RS radial thermistor > > from RS in the UK, min order a pack of 5. You meant axial (rather than "radial") right? I ask because I am probably going to order these. The componenby dslc - General
Re: Crimping molex connectors - 12 years ago
QuoteAndrew Smith Still, you can get good results with needle nose pliers and practice. Takes time and they don't look as nice, but they do work. Good to know I'm not the only person who has resorted to this. My primary concern is that - even if I manage to make robust connections - it's probably a lot slower than with using a crimper (even with practice). Anyway, it's not an issue unless I deciby dslc - Reprappers
Crimping molex connectors - 12 years ago
Hi all, I have built Generation 7 electronics for use with my Prusa mendel - and it's working out ok so far. The Generation 7 electronics (like most of the electronics solutions I guess) uses Molex connectors for the stepper motors, heaters, and thermistor connections. Because the crimping tools for Molex connections are quite expensive (circa 40 euro), however, I used a needle-nose pliers insteby dslc - Reprappers
Re: Why? do we use thermistors the size of pixi-dust –> an alternative - 12 years ago
Hi Rich. Hi Mike. Thanks for the feedback. Good to know these alternatives are working out well. (I was skeptical of using the mini thermistors from the outset.)by dslc - General
Re: Why? do we use thermistors the size of pixi-dust –> an alternative - 12 years ago
Hi Rich, How are these thermistors holding up for you? The leads on my 'pixi-dust' thermistor broke today, so I am probably going to try these axial thermistors next. Would be interested if you have any feedback after using them for a couple of months.by dslc - General
Re: CP210x-based USB-TTL converter for Gen7 electronics - 12 years ago
Hi terramir Quoteterramir David I think we are aving the same issue here because you could upload the firmware and now your stuck can you verify that you can actually connect to the host program your using because I cannot at this time Yes, I can communicate with the board using certain host-firmware combinations - but only one or two, and with only limited functionality. For example, usingby dslc - Controllers
Re: CP210x-based USB-TTL converter for Gen7 electronics - 12 years ago
Hi Aly, The USBasp is an open-source design: . So you might be able to build it yourself if you have the time, energy, and patience (there are through-hole versions of the design for example). On the other hand ... seeing as the programmer is available at such reasonable prices, it's probably more appropriate to simply buy it in some cases. Anyway - about the CP2102 breakout-board again ... Heby dslc - Controllers
Re: CP210x-based USB-TTL converter for Gen7 electronics - 12 years ago
Hi Aly, You seem to be dealing with two separate issues. Firstly - regarding programming a bootloader and the programming pins on the Gen7 board (labelled 'CONN6' in this picture). You're not trying to program the ATMEGA with the CP2102, are you? That won't work. If you need to program the bootloader you will need an actual AVR programmer. The CP2102 is just a USB-TTL converter - not a programby dslc - Controllers
Re: CP210x-based USB-TTL converter for Gen7 electronics - 12 years ago
Quotedslc I'll get back to you as soon as I try this. It worked - firmware uploading at least. Being able to at least upload firmware without having to use the programmer is a big improvement. I still haven't got the motors operating with any of the firmwares, but that's a separate issue. davidby dslc - Controllers
Re: CP210x-based USB-TTL converter for Gen7 electronics - 12 years ago
Hi Aly. Good to know your Gen7 Reprap is almost up and running. As Legot mentioned, the pin descriptions for the serial connection on the Gen7 board are on the wiki. From left-to-right (looking down upon the board with the ATX connector on the right and serial connector below the ATMEGA chip), they are: 1. GND 2. - 3. 5V 4. RX 5. TX 6. RESET. (Please correct me - anyone - if I have that wrong.)by dslc - Controllers
Re: Problems on Debian - 12 years ago
Hi Repetier, Remarkably, the software is running now! I'm embarassed to say I don't know what steps on my part actually resolved the issue - I made a number of package changes without documenting them. It might have simply been after I rebooted the computer that it started working. (I gave up on it before going to college this morning, then looked at it again after a lecture - lo and behold itby dslc - Repetier
Re: Problems on Debian - 12 years ago
Hi Repetier, I already have the mono development libraries installed in fact. I'm running Debian Sid however, and it seems I have a later (2.8.6 ?) version of the monodevelop package installed. However, while the 2.8.6 version of the monodevelop package is installed, the rest of the mono libraries are version 2.10.8 for some reason. Might this be the cause of the problem? (I installed the packby dslc - Repetier
Problems on Debian - 12 years ago
Have just installed Repetier according to instructions on Debian, but am receiving the following error on Startup. Unhandled Exception: System.TypeInitializationException: An exception was thrown by the type initializer for System.Windows.Forms.XplatUI ---> System.Net.Sockets.SocketException: The requested address is not valid in this context at System.Net.Sockets.Socket.Bind (System.Net.Eby dslc - Repetier
Re: Gen7 working with Marlin_v1 - 12 years ago
Can anyone shed light on this error I'm receiving when trying to compile the Marlin firmware? In file included from /usr/share/arduino/libraries/LiquidCrystal/LiquidCrystal.cpp:1:0: /usr/share/arduino/libraries/LiquidCrystal/LiquidCrystal.h:82:11: error: ‘size_t’ does not name a type /usr/share/arduino/libraries/LiquidCrystal/LiquidCrystal.cpp:261:15: error: prototype for ‘size_t LiquidCrystal::by dslc - Next Wave Electronics Working Group
Re: Gen7 working with Marlin_v1 - 12 years ago
Ok. I simply copied the contents of the Gen7 subdirectory that comes with the Marlin distribution to $ARDUINO_DIR/hardware/Gen7/ - and that seems to have solved the afore-mentioned problem. (I didn't think I would need to do that because I already have a Gen7 subdirectory in $ARDUINO_DIR/hardware/, but anyway ...).by dslc - Next Wave Electronics Working Group
Re: Gen7 working with Marlin_v1 - 12 years ago
Hi scuba, all, I'm having precisely the same error as Legot described - to do with WString.h, etc. scuba Wrote: ------------------------------------------------------- > error: WString.h: No such file or directory > This file should be located in the Arduino Support > Directory for GEN7. I think you're not using the > GEN7 Support Files attached to my repo?! Could you elaborate onby dslc - Next Wave Electronics Working Group