-> PheiPheiPhei The printer was delivered ten days ago and at best, it is printing since 4 days. So please be a bit patient. As you could see, there is still debugging, and as for the Z-offset, it is very basic debugging. For me, there are things which are not Ok, and shall be modified (primarily, get a more silent fan, an extruder with higher torque, a good filament guide and some modificatioby PRZ - Fisher
Thanks; that works. It shall be noted that there is no need to use an IP address for connection, but that the name could be 'reprapprofisher'. And during the connection, the printer answer that it is an ormerod ! My configuration on Total Commander: Regards, Pierreby PRZ - Fisher
I somewhat clean up the under bed and reposition it, then run multiple time the bedreport macro (which is bed7 macro with S7 replaced by S-1). The results are quite consistent: To FTP with the Duet, what is the login/password ?by PRZ - Fisher
I found where the actuated Z-probe color is set : this is in the file www/js/interface.js I have changed the "probeTriggerColor" from "#FFF0F0" (very light rose) to "#FF4500" (orange red) which is much more visible. That may help to notice a misplaced bed after part removing. Web interface with Z Probe non actuated Web interface with Z Probe actuatedby PRZ - Fisher
David, The endstop position is really not precise due to building. In fact, It relies on the manual bending you do on the endstop, so the non-zero endstop is needed. I have done the modifications you write (6 points probing) but the system does not converge. Here the screen copy. Also, The result of the S-1 is there: And a last question: is there any procedure that I could find on the web tby PRZ - Fisher
As I had swapped two column steppers and end-stops (Y and Z) to have non-mirrored parts, One of the pin of the end-stop cable get off the plug and was non-contacting. As this was minor change, I did not recommissioned the machine and that ended up by high mechanical stress on the arms and columns and worse, on the hotend. No harm at the end, but I will advise you to recommission endstops and motoby PRZ - Fisher
It is not very easy to understand on the photos, but the Fisher have a very special bed system. On top of the bed plate, there are 3 balls (diam 6mm) positioned at the external bed radius at 120°. There are three springs which push up the plate and each ball then contact two horizontal cylinders, which makes sort of a 'V' and positions sideways the ball. The ensemble of three make a 'positive' pby PRZ - Fisher
The troubleshooting entry was because I asked on IRC how to set the Z offset as I did not found it for the duet. Before they answered, I found the option of Z offset in Slic3R. It is much better done in the configuration file as you suggest. after my tests, I think the good value is -0.2 (at least for my machine). For the bed calibration, there is also a macro bed7 at the right of the screen. Iby PRZ - Fisher
Video of Fisher printing PETG here: It is real time ! layer height 0.2mm, width 0.4 mm extrusion coefficient 1.08, infill rectilinear 50% Speed perimeters 150 mm/s , infill 190 mm/s, acceleration 5000 mm.sec2 Temperature is 275 °C, which is a bit too much, I had some blobs carried by the hotend and I had to pause the print twice to remove these blobs. For ending print, I reduced to 270°C and 12by PRZ - Fisher
I have done a test of printing PETG on the Fisher Delta: first layer at 260°, next layers at 250°. layer thickness .25 mm, width : per Slic3R default speed 80mm/s and 100 mm/s for infill I have removed the part cooling ducts The adhesion to buildtak is excellent, and it was quite difficult to remove the part. However, the filament layer adhesion is not very good, except for the first layer sby PRZ - Fisher
Good news. After a big fear, as my printer was no longer communicating with the printer, this was a very unusual problem: my mikrotik router is either dying or overheating! With another router, I made the following test with serious improvements : increase the z offset up to 0.2mm increase the first layer temperature to 220°C I got better adhesion on the bed, fairly better 1rst layer, and no longby PRZ - Fisher
Longer steppers are possible, and if you look the top plate stepper cooling openings, that was thought from start. The hobbed insert is the smallest possible with a 5mm shaft, so you cannot compare directly the drive and the comparaison done by treito is the most accurate. About the motors, you can have high torque motors which needs only 1.8A, however, in that case, their impedance is high. Thisby PRZ - Fisher
There is a gearing of 11.34 with the same stepper. Ouch. The extruder of the Fisher is DIRECT drive. That makes more than ten time more torque on the Ormerod. Just a slight difference ! and some reasons not to be afraid of filament grinding...by PRZ - Fisher
The steppers are JK42HS34-1334AC. They are all identical and I assume they used this stepper for the extruder for supply simplicity. Yet, this is the bottleneck of the printer. I will for sure change it, but I am waiting a few days of experience to define all my needs. 1/ Manufacturer data tells that torque is 2.2 kg.cm and nominal current 1.3 A The setup is 800 mA for movements motors and 1200by PRZ - Fisher
Hello, I have added two directories for photos to my 3D printer page here : - one with Printed parts: Parts for a garden train monorail (free wheeling bogie) just Three photos here: - One with the few modifications I have done on the printer : * end switch lever bending as it was not properly triggering * auxiliary support for the spool as it was bending the panel so much that it waby PRZ - Fisher
I've received my kit of Fisher Delta yesterday afternoon and I finished its assembly this afternoon (total ~15h with a few troubles). It was very nicely packed and I received a spool of PLA filament as an extra (White color). I have to leave for a few days so I won't start it before end of next week, but I've made a few photos that you could find here : I will make a summary of my findings wheby PRZ - Fisher
So, I was off from a large value (15%) for the height, but more accurate on other parameters. I should have drafted the vanishing point, which I had not done. I forgot the scale compensation between the top and the bottom of the image for the vertical dimension. That make the Fisher in quite the same envelope as the micro-delta, but with columns on a larger diameter (on the micro-delta, the carby PRZ - Fisher
mmm... Ian, I feel some sort of discontent in your answer. There's no need for that. By essence, such printer in beta phase will be bought by tinkerers/engineers. As for your experience in printer design, for sure, but a lot of the improvements were carried by the users, so even if users comments are far from being always valid or pertinent, using argument of authority is not ok, especially in thby PRZ - Fisher
I have not initially noticed the comment of David about the belt tensioner being on the top of the frame, but that may explain the huge top clearance. Freed room in 'motor on top' setup as the arms don't need to go down the floor.by PRZ - Fisher
I have asked RRP to have the Fisher Delta data to enter in my OpenScad simulator, but didn't get it (yet). So, I have gathered data from the photos. Overall I am relatively confident in the number I found, while there is some uncertainty about effector offset and arm length. Dimensions are : Height is 500 mm. Printer is inscribed in a 280 mm cylinder . Side plates are 200x500 mm. Rods are 10mm, sby PRZ - Fisher
For non contact sensors, M18 is the most common diameter, however, it is easy to find inductive in 12mm diameter at low cost. For much higher cost, it also exists 8mm diameter sensors. Capacitive sensors, however, are more difficult to find in 12 mm diameter, but they exist in flat package. Inductive sensor, direct from china, 2.3 GBP, postage paid ... That may take some time, however... Capacby PRZ - Fisher
The diameter of the bed shown on the photo is approximately 170 mm in diameter, so a 180 mm bed shall extend very slightly from the side plate. However, I think they shall set the plates 4~5mm further from the center, which will allow the carriage to move within the plate without the external cut needed now and reduce the width of the center hole. The side plate will be stronger, which will reiby PRZ - Fisher
I think one simple solution is to use a standard probe as could be seen here (on Cherry Pi) : He uses an inductive sensor, which will work only on aluminum, but is very low cost. With a capacitive sensor, a bit more costly, it is possible to accomodate other materials.by PRZ - Fisher
There is some equipment (small brass columns) nearby the rods. I was initially thinking of a belt tensioning system by moving the steppers. However, looking closely the photo made by David, there are three orange pads on the effector, so that may be part of a calibration system ? These pads are not seen on the RRP site site photos, where the effector looks built by stacking acrylic plates. As tby PRZ - Fisher
To install a heated bed, it might be possible to return the frame, with motors and board on top, so no cooling problem, and install the bed on what is now the roof, with insulation from the acrylic. that will also simplify switch wiring. Having weight on top is not the best, but for this size, with a rigid frame, that could do the trick. Another question, if acrylic is laser cut, how do you deby PRZ - Fisher