Thread: AndyUK's Build - 1.2x1.0m Gantry
Threaded View
-
21-04-2023 #32
One thing to think about is where the stress comes from - Its all about the cooling and contraction of the weld as it goes from hot hot hot to room temperature. This is effectively quite a short term process, once the stress is there, it will cause strain in the material resulting in some deflection. There isn't particularly any reason for this to change over the period of years.... And then of course, we go and epoxy level / scrape / machine the surfaces to make them flat, so that's all done once the strain is there and accounted for.
But always ground yourself in the practical world - its all too easy to get lost in theory and what-ifs. Experience trumps most of it. Plenty of people around here have welded frames, and I haven't seen anyone have an issue with stress. Just be sensible and tack weld everything slowly and move methodically around the frame to avoid building up heat too much before completing the full welds - but thats standard welding practice anyway.
-
The Following User Says Thank You to AndyUK For This Useful Post:
Thread Information
Users Browsing this Thread
There are currently 13 users browsing this thread. (0 members and 13 guests)
Similar Threads
-
BUILD LOG: 8x4 router build. Steel base & Aluminium gantry gantry
By D-man in forum DIY Router Build LogsReplies: 57Last Post: 13-12-2019, 10:43 AM -
BUILD LOG: Build Log: 4'x4' Moving Gantry CNC Router
By GeorgeW21 in forum DIY Router Build LogsReplies: 14Last Post: 20-01-2019, 09:33 AM -
BUILD LOG: Ar last!!! Started my Gantry 3-Axis CNC Build
By MikeyC38 in forum DIY Router Build LogsReplies: 74Last Post: 16-06-2018, 11:29 PM -
Any sugestions how to build my gantry
By masinecc in forum Gantry/Router Machines & BuildingReplies: 8Last Post: 20-09-2015, 05:17 PM -
BUILD LOG: Flying Gantry Build Diary
By geoff.sim in forum DIY Router Build LogsReplies: 8Last Post: 29-05-2008, 02:53 AM
Bookmarks