TglaZe I’m printing it now and it really seems tough. In chinky mode it looses its flex. I print mind at 230
There have been some tests showing that vapor smoothing ABS parts greatly increases their interlayer strength.
Hey @Frank_Opmeer ,sry can’t help with materials. I have a chair similer to this, do you have this model up on YouMagine,com?
Just in case I need to fix it in the future.
@Frank_Opmeer I have the same chair but on mine that center part is made from aluminium - there is a reason for this! So just look out for a replacement part. The other solution might be to wind Carbonfiber roving soaked in resign around your part–I doubt that pure resign will help you as you have no compressive stress but tractive forces (tensile) (ps: if you make that sliding square part just 1.5 cm longer you get a great lounger)
What @Chris_Bigpaws_Chambe said. You’d be surprised how inexpensive casting can be.
@Ulrich_Baer the original part was from injection molded plastic. So I don’t think you will get this problem of mine.
@David_Cushing I can upload it to YouMagine but how should I call it? (I will do it after this weekend)
I had a second thought about this and I think I may have a second printable solution.
Given the shape is hollow in the center, recreate your PLA printed part, set the bolts,
measure the remaining free space in the center, and create a Hollow box to fit this void. it should touch the heads on all the carriage bolts. then use epoxy to fill the remaining void.between the outter square shape and the new inner box shape. this will make a solid block out of your hollow part.
Because what happening ts the overall weight (you and the chair) are too heavy for the PLA walls, as a solid, the wall distortion should stop.
@David_Cushing I Have uploaded my failed version to YouMagine
Here:https://www.youmagine.com/designs/chair-leg-core-replacement-see-picture
I will update the files there with the improvements i came up with thanks to all the comments from you all.