Is trying to auto-calibrate to 0.03 wishful thinking? I've successfully calibrated to 0.05.by gowen - Delta Machines
Quotegowen With this added it compiled and installed fine although I did get these messages. Sketch uses 121,982 bytes (48%) of program storage space. Maximum is 253,952 bytes. Global variables use 6,386 bytes (77%) of dynamic memory, leaving 1,806 bytes for local variables. Maximum is 8,192 bytes. Low memory available, stability problems may occur. It appears this warning appeared because I wby gowen - Delta Machines
QuoteAndyCart It may be worthwhile downloading the latest version from Rich Cattell's Githib, link above. I've rebuilt Marlin from using the latest code from Rich Cattell's Github and your configuration.h. The first build failed, because the new code has some extra defines in configuration.h. They are: //Diagonal Rod Adjustment - Adj diag rod for Tower by x mm from DEFAULT_DELTA_DIAGONAL_RODby gowen - Delta Machines
I'm using the version that came supplied on the SD card with the kit. I can't tell you the exact version at the moment.by gowen - Delta Machines
QuoteAndyCart Auto calibrations can sometimes take up to 90 iterations! Well today the auto-calibration went on for 175 iterations. I stopped it after hearing a loud tap, tap, tap as the head moved from one column to the next, as if the nozzel was leap-frogging across the bed. There is no clue in the log. Any ideas? Tomorrow, I'll attempt a manual calibration after checking the bed is flat.by gowen - Delta Machines
QuoteDavid J I've decided to experiment with the power input - I'm planning to use a 203W Xbox PSU to power the printer, so I've decided to take the obvious route and try to fit an Xbox power socket to match. This will have numerous advantages: I won't need to modify the PSU lead. It's built to take all the power the PSU can offer. I will probably be able to fit a switch to turn the PSU on andby gowen - Delta Machines
QuoteAndyCart Hi Gary The command to run auto calibration is G30 A but you need a connection to Z Min on RAMPS that changes state when the nozzle touches the bed. I have made up a long lead with croc clips on one end and the RAMPS end stop connector on the other. This fits temporarily whilst the machine is calibrating. It relies on you having a clean metal bed and a clean nozzle. Clip one leadby gowen - Delta Machines
I attempted calibration today, but got stumped almost straight away. I worked out that I needed a baud rate of 115200 in Repetier-Host and I set a nominal circular build area of 200mm dia by 250mm high. Then to check my connection I used the manual controls to move the effector. When I tried to shift it horizontally, the Z carriage shot downwards, the Z effector strut went past horizontal andby gowen - Delta Machines
QuoteZzyzxx71 Is there a version of Andy's effector for metal hot ends for struts with 10mm ball bearings? I printed out the version posted on page 14, but the sockets for the ball bearings in the effector seem unusually small, almost as if they're for 8mm ball bearings. Additionally where can I find this calibration guide? I've seen multiple people reference it, but haven't found a link anywheby gowen - Delta Machines
QuoteAndyCart Well done Gary. Now the fun really starts. Great job on the build and the build log too. Cheers Andy and thanks for all your assistance and encouragement. That goes for all you other members on this thread too.by gowen - Delta Machines
Day 16 - It Lives! I've got it as far as I can go for now. I just need some Kapton Tape, so I can attach the thermistor to the heated bed, but that will have to wait until I get paid on the 25th. Before then it's the wife's birthday. I added power and nothing blew up or started smoking. Then I used the auto-home option on the control panel and the carriages were moved up until they hit the lby gowen - Delta Machines
Day 15 I've finished the electrical installation other than the hot bed and a calibration cable. I'll get that done tomorrow lunchtime, athough if the weather is good, I may grab the RC gear and go flying. The filament is on order and should arrive in the next couple of days and I may order a right angled USB connector as the straight one is putting a lot of strain on the socket where it'sby gowen - Delta Machines
QuoteDavid J Andy, That's what I thought! I guessed that it was a mechanical system - I didn't think that it made an electrical connection. Does the E3D version work in the same way? Or is that the one you're talking about! I'd really like to see a picture or two of the E3D effector fully assembled, just to get my head around it. Hi David, I've just built the current hot end. You can seeby gowen - Delta Machines
Quotepugzor Really? I've only got a centrifugal fan on mine which blows air only onto the nozzle tip. This one should be on all the time? I thought this was more for solidifying extruded plastic quickly. I notice that pugzor is not using an E3D. Andy's Cherry Pi III images on Thingiverse with the previous hot end don't show a fan, but there was some discussion near the start of this thread abouby gowen - Delta Machines
Day 14 QuoteAndyCart When you plug the PSU into the mains there should be a red led illuminated on the unit. If you short the green and white wires together it should turn green, at which point you should have 12V on the red and black wires. Thanks Andy. That worked a treat. I could find details of the first XBox 360 power supply with about 10 pins, but nothing came up for the slim or the XBoxby gowen - Delta Machines
I've got a problem with my XBox ONE power supply. I cut the plug off and stripped back the sheathing so I could solder it to the barrel plug and put a meter across the cables to check which was the 12V and 5V lines. There are Red, Black, Green and White wires, with the red and black ones being of a heavier gauge then the green and white. So I assumed the Red/Black are the 12V/12A lines and theby gowen - Delta Machines
Quotedougal1957 ps My Build is coming on Nicely as well My Delta Looking Good Doug.by gowen - Delta Machines
Day 13 I got most of the connections completed today. The hot end and extruder wiring has been fed though and down the Z column. I need to extend the hot-end thermister wires about 100mm to reach their header pins. I take it the hot-end cooling fan connects to D9. My only other question concerns the two lengths of mains cable included in the kit. I take it one is for the cable run from theby gowen - Delta Machines
I found this image showing how to wire the RAMPS board. It shows an extra Z motor, but it was the clearest I could find. I assume as we only have a 12V supply we only connect to the 5A power input.by gowen - Delta Machines
Day 12 - Crimptastic Made a good start on connecting all the wiring. Having a proper crimping tool certainly helped. I got the X, Y & Z motors connected and got plugs on the microswitch wires. I also added a plug and socket to the fan. I don't know if that was intended, but it seemed a good idea and saved me from having to break out the soldering iron. I also got the effector cabling raby gowen - Delta Machines
QuoteAndyCart Looks like you are nearly there. If you want to make use of the auto calibration routine in the Rich Cattell Marlin firmware make up a flying lead with the normal 2 pin RAMPS limit switch connector on one end and two croc clips on the other end. Clip one to your hot end and one to your aluminium bed and plug, temporarily, into Z Min. As the nozzle touches the bed it closes the circuby gowen - Delta Machines
Day 11 I didn't have a full hour today, but I got the spectra line loops (130mm) attached to the springs and the effector mounted. I also checked the stepper motor wire pairing by shorting to two together and seeing if the carriage became harder to move. For my motors the pairing turned out to be black with green and red with blue. Tomorrow I start the electrical assembly.by gowen - Delta Machines
Day 10 I finished bonding the effector struts this morning and they appear pretty even in length. I used M4 grub screws which had just the right amount of bite into the tube to screw them in with a thin coat of epoxy. Some of the balls wanted to lift due to the compressed air inside, but removing and then replacing them was generally enough to cure that. I used the rest of today's time to gby gowen - Delta Machines
I think I found what goes on the mystery screws. I'd forgotten about this power connector in my small parts box. I'm wondering why the counter bores are on the socket side though. I assume I need to take the socket out and put it back the other way after soldering on the connections. Quotedougal1957Where are you by the way I'm near Taunton in Somerset, UKby gowen - Delta Machines
Day 9 Good session today. It's really starting to look like a delta 3d printer. The re-soldered micro switches are attached with the "magic sauce" and their cables run. Before bonding, I checked the micro-switches were the correct way round to be activated by the carriages. I had five minutes to spare so fixed the RAMPS board as well. One quick question, what are the t-nuts for on theby gowen - Delta Machines
I've resoldered the micro switches ready for tomorrow and I've packed the CA, although it's quite thin and sets quickly so I may pick up some thick on the way to work. Hopefully I'll be able to get the mechanics finished tomorrow.by gowen - Delta Machines
Quotedougal1957 No you really should have them as NC that way they will always Fail ( god forbid) in a safe way if wired as NO as you have and a wire breaks then the carriages won't know when they hit the endstop and will try and keep going. Doug Bugger! I'll take them home and re-solder them this evening. Shouldn't take long. Thanks for the correction.by gowen - Delta Machines
Day 8 Today, I soldered up the micro switches. Due to the company clean desk policy, by the time I had got my soldering station out and then put it away again, there wasn't time for much else. I've soldered the switches as normally open, push to close. I hope this is correct. After reading vreihen's comment in the previous post I did check my stepper motors as I couldn't remember seeing aby gowen - Delta Machines
Quotemrorange26 Why does my cherry pi keep skipping like this in prints. I realise I have no experience yet, but could this be caused by the bed shifting?by gowen - Delta Machines
QuoteAndyCartNot sure why you are short of screws? I counted them out twice before I shipped them to you. I had to change desks last week. I suspect they were loose in the box and got displaced during the move. They're probably inside a vacuum cleaner now. I've ordered some replacements from eBay along with some M4 grub screws to fit the balls. Should be here Thursday.by gowen - Delta Machines