I have printed some of the parts perfectly, but now that I am trying to print the wishbones it seems that I cannot get but one that has worked without the nozzle clogging somewhere during the print. I suspect it may be that I am printing at 50% infill so the filament ends up getting stuck due to all the movements it has to do for each layer.
What infill seems to be a good mix of amount of filament used and strength? Are there any measures I can take to get these to print at 50% without clogging?
Cheers!
My wishbones are printed with a 100% infill.
At 100% infill have you still run into problems with the wishbones breaking during hard crashes? I would assume so, as I have broken numerous injection-molded wishbones on my other cars.
Also has anyone run into problems with humidity affecting their filament (clogging, slipping, etc)? I am wondering if I should build an enclosed chamber for my filament or investigate another culprit.
The problem i had was the wishbones delaminated. So i put screw in on either side. Now they hold up much better! There should be holes for those screws on the latest STL´s.
Printed at 100% infill as-well, but vertically and not horizontally 
@Daniel_Noree Yes I have 4 complete wishbones, but when the nozzle clogged I didn’t catch it until it had missed a layer, so I am worried they would delaminate under any type of normal driving stress.
@Pascal_POECK did you just flip the STL vertically and use supports? I might have to give that a try, the only problem I see with that is depending on your “vertical” orientation your layers would be in the direction of the major stresses and could delaminate.
Pascal that is a good point, when I print them ill try it like that. Thanks
i didnt even consider printing them flat lol most of the shear force is in the wrong plane if you print flat
i also printed most of the car at 0.2mm and some of the high stress parts at 0.1mm as i found the higher the rez the stronger the layer bonding is
Has anyone done acetone vapor baths on their parts to increase strength?
On other prints I have found that the acetone not only smooths everything but also greatly strengthens the part by bonding every layer together. The drawback I could see is the screw holes would be enlarged slightly.
Update: I tried printing the wishbones on their edge and they printed perfectly. I will see how well printing them vertically holds up under stress.
