Mobile gantry crane build
I made this gantry to make machine moves easier. It features an adjustable height beam due to limited door height, and a whole lot more.
I thought with this video I'd touch on a few engineering concepts.
I forgot to mention, Being able to level the gantry to within 50 mm means that 2.4% of the weight acts sideways. ie a 1 ton load will need 24 kg sideways force to restrain it. A runaway load can be held back by hand or a rope etc. I felt this was a manageable amount
This gantry was actually finished late Feb, but I had a lot of extra work required first (concrete loading slab for example), and then other commitments.
The design is not perfect. I have improvements that I'd make in future. I might replace the bottle jacks with longer stroke jacks for faster raising
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Time stamps:
00:15 Gantry Overview and top beam
1:16 Stiffeners
2:05 Making the legs
4:18 A frame assembly
5:50 Casters
6:43 Leg plates
7:00 Brackets (v1)
8:12 Bracket rework
8:57 Leg strengthening
9:32 Gantry assembly
10:14 Leg winches
11:12 Leg locking pins
12:32 Braces (v2)
14:37 Leg set screw
15:18 Fixing the winch hook
16:15 Hydraulic lifting
17:18 Leg extension (Leg-stension?)
18:10 Test lift on a mystery box
18:31 Machine Move
19:46 Final gantry feature
20:43 Outtakes and patreon shout out
Consider supporting me on patreon, where you get early access and more: https://www.patreon.com/tommygmachining
Shout out to the following patreon supporters:
Sami
Nate