Ok, here is a revised OpenScad program for the end. No lib (use the one sent in former message) . Not tested ! To validate the PLA option, set the variable isPLA to true, that will thin the stuff. To make the number of copies needed, define the variable 'sets' I added a gouge to help insertion.by PRZ - Fisher
If using PLA, the pressure load is a bit more than double that with PETG, directly related to the the material stiffness. In fact, for PLA, you may need my first version, but it is cancelled. I can redo something adapted to PLA by thinning the fork root by 20/21%. Don't forget to lubricate. However, I will not test as my machine is conditioned for PETG (no part cooling) and I never use PLA. I wilby PRZ - Fisher
Here, the STL and OpenScad files OpenScad and STL for 1 set STL for 5 sets To measured accurately the arm length, you shall use 4mm flush rods, which fits in the end holes M3 thread pitch is 0.5 mm, so a half turn will move the end by 0.25mm. The ensemble shall be tighten firmly, so the initial length shall be shorter of more than 0.5mm than the desired length. In fact, at initial setup, theby PRZ - Fisher
Yesterday, while testing some M codes, I heard a bad noise and duh!, one arm was broken. However, I was quite lucky, as I printed the day before some prototypes for printed arms, for future tests. So, I had no other option than install and test these prototype arms. Mixed with the original arms, they worked for printing, but I had poor calibration. Looking closely, you could see that the printby PRZ - Fisher
I think it is more simple to set a plug in the expansion connector. I noted the pins in the photos below. Bottom photo by 'Roboprint' get from the forum, it is a Replikeo board. Thats the only Duet bottom photo I found. It is important because there is the pin description. Other photo probably from RRP.by PRZ - Fisher
I confirm that the revision indicated on my Duet Fisher board is 0.6by PRZ - Fisher
Beware, the Fisher is supplied in 19V, so there is not 12V on the board. The connection of the hotend fan is the same as the input, so 19V (you could check the voltage by looking the markings on the supplied fan). RRP sells 19V fan and I have connected one of them on the power input to cool the board. Using 5V fan, easier to find, is a good idea. 5V is available on the J1 connector (expansion cby PRZ - Fisher
Note that Smoothieware have adopted the designation Alpha (X), Beta (Y), Gamma (Z), so some homogeneity between softwares could be interesting. I agree that it could be confusing, especially for the Z axis/Zcolumn, but at least, it makes wiring clear. Just Complete the board serigraphy ? (which is already quite crowded).by PRZ - Fisher
I agree that overtightening the belts could create problems. I try to be reasonnable. This machine doesn't need as much tension as larger machine because the belts are shorter. But there is a minimum tension which is difficult to reach yet. Using the slippage of the structure on the rods to limit the belts tension is not ok. That varies depending the oiling of the rods and other uncontrolled parby PRZ - Fisher
I am a bit late on that, but there is a problem with the supports which tend to slide on the rods. So, you may do a few modifications on the files : Join the two bottom motor attach with a floor of approx 1mm, to stop the rods, this also will help to install rubber feet. Do not forget to mirror vertically one side to have the nut hole directed to the bottom. For the top, this is a bit more complby PRZ - Fisher
The acrylic panels are not quite stable, they tend to bend and warp. Also, as the support tend to slide on the rods, that compress the panels which buckles. After a few resetting of the machine and as the side panel nuts were beginning to freely rotate in the supports, I decided that something shall be done quickly before I won't be able to tighten the nuts, so I reinforced simply with wood lathby PRZ - Fisher
Hello, after having totally failed to print large part on the Fisher (diam ~140) after a full day of essay, I have built a new bed by cutting 2017 aluminum sheet thickness 3mm. 2017 is relatively soft and very easy to cut with a jigsaw. I had to take some time with the grinder to somewhat clean the plate and the look is not the best. I insulated the balls with wood plug, with 1.5mm model plywooby PRZ - Fisher
Hello, I got calibration problem and I lost a part at mid-printing because the carriage were no longer 'free-running' on the rods. In fact the rubber seals on one carriage were giving a quite high friction and I lost steps on this carriage. Use real lubricant, not WD40 or equivalent (which is a solvent, not a lubricant). I think the best lubricant is ordinary bearing grease (lithium based). I tby PRZ - Fisher
Hello, I am using PETG, and I have tested eSun PETG, which is in fact a totally different material than the previous PETG I was using (Reprapper). One characteristic of eSun PETG is that it need a much higher temperature than the RepRapper, say 20°C more. Unfortunately, I think the temperature indicated by my machine is way above the real temperature, so I have nothing reliable to state. (Thermomby PRZ - Fisher
Hello, I have no reason to rebuild my effector now, so I have not designed a new one. You will still need the wood plate for thermal insulation however. I had a thorough look on the effector, however, but for other reasons. The Fisher fan is very noisy and I was in search of another cooling solution. At the end, I concluded that the only solution was to use the same form factor fan, but with theby PRZ - Fisher
Thats now on Github : It shall be noted that as the first parts were not really well done due to unnoticed warping (more on that later, in principle PETG does not warp), the large gear and the base were re-printed with this extruder (the dyed parts). So this extruder have printed its main parts with initial version of itself, RepRap style. Also, for the spool on top, have a look on this topicby PRZ - Fisher
Hello, I have designed a geared extruder for the Fisher, to be installed like the existing one: It does present the following advantages: Easy access to the tensioner adjustment Easy access to the hobbed insert for cleaning More powerful extruder allowing thicker layers Capable to unwind poorly wound spool (for me thats 2 spools on three tested !) With spool on top, the pby PRZ - Fisher
I was thinking that the calibration can compensate accurately for the endstop position. And if you enter the Z-offset in the config file, you will have an accurate starting point, so why trying to adjust physically the endstop position, which is a bit challenging ? The builtak can come off if you go slowly, but I lost some glue on an edge and edge is damaged where I used it to pull the ensembleby PRZ - Fisher
The calibration can compensate for a non flat bed, if the default is homogeneous. However, there is a price to pay: - The calibration establish a fictive geometry for the machine, to have in its 'local space' a flat bed. That means that the dimensions of your parts cannot be accurate. You could cheat the program by modifying measurement offsets, but in this case it will be impossible to have aby PRZ - Fisher
Hum, something wrong here: The X column angle is very important. Such an angle shall be very visible without any instrument. Considering the manufacturing method, its is possible that all columns are twisted similarly, but the calibration cannot detect it, however the fact that only one column is reclined so much is highly improbable. The radius is quite important and indicates that the machineby PRZ - Fisher
Hello, I also faced some problem with excessive rubbing from the belt to the idler carriage and replaced the bearings by flanged bearings (they are the same as for Kossel, so easy to find on ebay or elsewhere). However, I did not recommended this solution, because, if it is working now, I had some problems because I had initially not properly seated them in the carriage, and so, the belt climbedby PRZ - Fisher
David, thanks ! Yes rod length are identical. Thats is really excellent, I will try No problem with the calibration routine ?by PRZ - Controllers
A few month ago, Ryan Carlyle have shown a delta with three columns at angles of 90°, the 'square delta'. Thread about it (on google Deltabot forum): While this setup slightly lower the effector stability, there are many constructive advantages in it. Ryan is using a Smoothieboard as controller. I am interested to build a printer with the same geometry (but different construction, in shby PRZ - Controllers
Hello, I think that even if back to more accurate censorship, the message shall tell WHAT are the word(s) the filter did not accept. I ended up searching paragraph after paragraph, word after word as Traumflug, but as is was a multi-target, that was quite long. I ended up send my text in an image, but it was not even accepting the image presentation very short sentence.by PRZ - Administration, Announcements, Policy
Yesterday , I tried, (and at the end of the day, failed) to print a large part, and one of the modifications I had to do was that : This is a screw M2.5 and you shall take care to have the head not too low, as it could conflict with the bed support, hence I loose steps. It is also imperative that the cable tie 'knots' shall be OUTSIDE the printer. If you want to print large parts: Set youby PRZ - Fisher
A DXF was supplied by RRP for the BED (plan 1204) attached here: I think before starting anything, we shall wait the proposal of RRP. It is still a beta. The main question is what to do for the already delivered machines. They indicated a first batch of 100 was delivered and they continue to sell it. As suggested for the electrical insulation, an insulator could easily be done. Printed if therby PRZ - Fisher
Hello, I should have done that before, but I checked the flatness of my bed, and the center is ~0.25 mm lower than the sides. I assume that the calibration routine then create a fictive geometry with wrong arm radius, and then the parts which are manufactured does reproduce the shape of the bed. That may also explain inaccurate dimensions of built parts. The tests I have reported previously (7 pby PRZ - Fisher
Hello, I translated the web interface in french. It somewhat messed up with language markup and selecting Deutsch will gives you French ! (though Deutsch string are still there, but it seems to use the last shot) Bonjour, J'ai traduit l'interface en Français. Il faut remplacer le fichier language.xml dans le répertoire /www par le fichier suivant: Pour une raison inconnue, les balises de langueby PRZ - Fisher
Hello, To upload large files, you can use FTP login: anything password: reprap password is defined in the config.g fileby PRZ - Fisher