Help to analyse the first benchy
Hi,
I would like to have some advise to tune my printer following this result.
I used a sharp light to better show the defects.
I know I maybe have some problems with XY belts tension but I cannot trust the prusa values (285,289). In Hz I'm a bit too loose on X 64Hz and a bit too high in Y (?) 100Hz after a try to tune that with the prusa belt tension values! (maybe my bearings are too tight?
Thank you for your advises
Re: Help to analyse the first benchy
Other pics
Re: Help to analyse the first benchy
More pics
Problems in the rear and missing spots on the top surface of the box and something wrong on its the left corner seen from rear
Re: Help to analyse the first benchy
Finally.
See the problem on the chimney
Re: Help to analyse the first benchy
Seam on the chimney is normal and has to do with the way the model is sliced.
Looking at the bottom of your benchy, I'd say your first layer needs work. There shouldn't be gaps. For reference, I attached a picture of the bottom of my benchy.
Otherwise, I looks pretty decent, especially if this is your first benchy print.
Re: Help to analyse the first benchy
Thank you for your advise: I followed the prusa guidelines and test procedure but seems the first layer need to be more squashed. (I already tested the extrusion)
Any advise about what to prioritise following my result?
For instance: if I need to tend the x belt I must desassemble all: Is suitable, at this stage, to take advantage to change the X assembly with aftermarket pieces like Zaribo X axis parts, Y axis adjustable holder etc.?
Thank you in advance
Re: Help to analyse the first benchy
I suppose it depends on what your intent for the printer is. If it is to use it to tinker and play and upgrade and the processes of learning and upgrading and working on the printer is a key part of what you get out of owning the printer, then line up the upgrades and mods. I've considered doing the following, listed in order I would do them:
1) print bed wave springs -- much better bed leveling
2) Y rod mounts -- gets rid of the zip ties holding the y rods, may help with bed leveling.
3) Y axis motor mount and adjustable belt idler -- better belt geometry and wear, easier tension adjustment
4) Y rod bearing straps -- better capture of the bearings, less distortion of the bearing.
5) New bondtech extruder kit -- more consistent extrusion, less moving mass (theoretically better precision, less ringing)
6) full cable chain mod -- looks cool, arguably easier on the cables than spiral wrap.
I've done #1 and #2, as well as replaced the stock power supply.
Now, if your intent is to use the printer as a tool to print things, after adjusting your first layer to get better squish, I'd start printing. Your benchy certainly looks perfectly serviceable and many of the problems you might run into are going to be things you resolve by changing slicer settings, not by tweaking the printer.
I should note that neither of the above approaches to owning and using a 3d printer is wrong. Different people have different reasons for buying a printer. I enjoy the tinkering, but bought mine to print things so tearing it apart to upgrade/mod isn't a priority as it means I don't have a working printer during that time. Also, taking the printer apart to upgrade/mod means you will have to re-do all the calibration and physical tweaks that you did to "perfect" your prints, so take that into account.
My approach is to hold of on mods/upgrades until something drives the need to do printer maintenance. For example, I'll the y rods, bearings, and bearing straps when the wear on the stock rods becomes bad enough that they need replacement. At some point, I will probably order a second printer so that I can tweak one without being without a printer.