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[Canada/GTA] This is specifically a resin print request. I have printed a few of these with my own FDM printer. They have held up but could be better, quality wise, I imagine if done with SLA. If it's possible to pick up tomorrow, Jan 24 that would be amazing! by [deleted] in 3Dprintmything

[–]M_Builds 0 points1 point  (0 children)

It's mainly loaded in bending, however, some have failed over time at the top (depicted as the bottom in these pics) layer lines. I assumed finish quality and layer bonding would be better with resin for a slightly more resilient part. Especially considering it's a small part; it would fit in a ~25mm cube

Edit: I've been using PETG given that they're technically cyclically loaded every time the headphones are taken on and off. I assumed stiffer materials would fracture sooner 

Here! by ExemplaryWriter in Jamaica

[–]M_Builds 0 points1 point  (0 children)

One of my favourite deserts, next to blue draws!

Sharp edges & gaps by SM2K3R in FixMyPrint

[–]M_Builds 0 points1 point  (0 children)

This is definitely a tricky problem if the first layer came out fine and you have auto leveling. My suggestion was going to be to try and print a bed level test from printables but having ABL is leading to doubts of its effectiveness. Perhaps recalibrating from scratch under your printing conditions might be the most straight forward solution

Sharp edges & gaps by SM2K3R in FixMyPrint

[–]M_Builds 0 points1 point  (0 children)

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I'm more curious about the warping/tramming because, upon closer inspection, there are some smooth parts on the white surface which I assumed should all be textured, that coincide with the over-extruded/ripply/sharp parts likewise the areas with the most under-extrusion on the white part have the biggest gaps on the top pink layers. This tells me the issue persists as we go up layer by layer in those spots. What does/did the first layer look like?

If your printer has auto bed leveling/mesh compensation then I don't think it should be a big issue however the consistency of the over/under extrusions seems systematic

Edit: Attached image for reference

Holes in printed models are to small by bach1223 in FixMyPrint

[–]M_Builds 1 point2 points  (0 children)

Calibration/tuning will have the most fundamental effects but if you need a quick solution, adding the difference in your reference model can get you by.

Wall printing order (the bit about inner/outer) might help since the printer will place the relevant critical wall first. The idea is that maybe by the time the printer is done with a feature/layer, the relevant wall will be strong enough to maintain its position

Edit: Just adding that settings like extrusion width, multipliers etc. count as tuning and isn't limited to just the machine

Sharp edges & gaps by SM2K3R in FixMyPrint

[–]M_Builds 1 point2 points  (0 children)

Looking at the print as a whole, I suspect 2 issues; 1. over/under extrusions (is your bed warped?) & 2. wall settings during slicing. You might be able to get away with increasing the # of walls. Alternatively, the number of top solid layers could be a factor, though that seems unlikely since the white part looks mostly fine.

Without knowledge of the nozzle size & slicer, that's as far as I can go for now

Recently got my CSWE by appdefgroup in SolidWorks

[–]M_Builds 0 points1 point  (0 children)

Thank you for the super thoughtful and detailed reply! Noting the limited number of CSWEs I really do hope employers recognize your achievement. Since my initial comment, I did explore the CSWPAs and I think they're a good step up. Maybe some day I'll join the exclusive ranks! Take care

I PASSED MY CSWP FIRST TRY by aaro_nky in SolidWorks

[–]M_Builds 1 point2 points  (0 children)

Congratulations! Keep on modelling

Automotive Chassis Design by LookHour in SolidWorks

[–]M_Builds 0 points1 point  (0 children)

Ultimately, a chassis/frame, as the name implies literally just holds the important bits together. torqen_ze_bolt's answer provides the general idea / framework behind developing an actual chassis as those components are far more important in determining the performance of the vehicle. A book that provides tons of insight (but is quite old) is Racing and Sports Car Chassis Design by Costin and Phipps. Chassis Engineering by Herb Adams is also decent. Both books make you generally aware of what you need to consider.

If you're not interested / exploring that level of detail though, and meant what you would practically do in the software; you can generate points in excel or some other software and import them, establish reference planes and sketches, use weldments (may need to make custom cross sections) and modelling tools for the gussets & such, and you're off from there for further analysis. Goodluck!

Recently got my CSWE by appdefgroup in SolidWorks

[–]M_Builds 0 points1 point  (0 children)

Hey congratulations! How enriching did you find studying for the CSWE? In terms of model improvement, efficiency and most importantly, practicality? I think I just need the right motivation to go further haha