Dear RepRappers,
I'm designing CoreXY system from scratch (lots of hurdles along the way) which will be, in my opinion, quite advanced machine.
I've decided to at least partly base it on E3D motion system, but make it more sturdy and reliable, using more robust components.
Also, chamber will be heated to at least 100C, so each component I choose should be also designed to be used in elevated temperatures.
Therefore I'm looking for good quality linear rails.
I've thought abotut using HGR 15 for my table (3 of them plus 1605 ballscrews), and MGN9 for X axis, as this would require least amount of modification for X axis support structure.
Of course all of them would use steel endcaps for increased service life in high temperatures.
I'm struggling with Y axis linear rails choice. HGR 15 would be the obvious one, being cheap and easy to get, but I'm thinking if it's HIWIN HGH15CA-Z0 being 210g (plus steel endcaps) is not to heavy?
Also, considering that I'd use Item System 8 profiles for construction - is it wise to directly bolt rails to a profile, or should i rather use some intermidiate precision plate for that?
Is Z0 preload ok? It allows for less accurate mounting surface so theoretically speaking it should be better? Is there any benefit of using ZA preload in this application?
Would I see any benefits of using QH instead of HG cart type?
Are there any better rail choices for this application than Hiwin or is it overkill?
Cost is important for me, as this is my toy, but I dont want to use any knockoff parts - only genuine stuff.
Edited 1 time(s). Last edit at 12/11/2019 04:12AM by ov_darkness.