I’m awaiting a benchtop milling machine which weighs about 500lbs, and with the expense of the machine + additional tooling that would probably follow (vises, cutters, tool holders, etc) I wanted to be able to minimize the expense on the stand.
most stands are in the 150-400 range (including shipping and such), which would be better used for other things. I still have some extra 4×4 FIR from building my workbench, and figured I might as well just use that. My first concept was the simple workbench/table style consisting of 2 sets of 2 pillars each connected with 2 2×4 using M&T. the 2 sets are then connected with 2×4 using unglued M&T with bed-style bolts to tighten the joinery and parts together (actually was leaning toward full length lead screws but it does the same thing):
the top is 1.5” thick and made of 2 layers of 3/4” plywood topped with 1/4” phenolic (for protection from liquids/oils/coolants/etc)
Thing is – I don’t really have much time to build this, and it’s too cold, icy, and grey these days for me to want to be in the garage. I wanted something that would take less work to put together.
I came up with the following design which consists of the following:
1. Uses 4 4×4 pillars to carry the weight that is put on the workbench
2. Uses Plywood to cross connect each 2 4×4. This would be the equivalent to the 2×4s and the M&T with the joinery basically being spread across the entire 4×4 faces
3. 3/4” plywood screws to the back of the 2 sets of ‘walls’ – this is so that I can easily break this down if needed while still maintaining a large surface contact between parts to generate holding power
4. 2 strips of 2” wide 3/4” plywood connect the 2 walls on the front – not for rigidity, but to keep the base square as it will house drawers with slides
5. top is again 2 3/4” plywood laminated together to ~1.5” thick top with 1/4” phenolic top layer to protect from liquids/coolants/oil spills.
This is not a complete model as I’m still missing the drawers, but before I commit to design I want to make sure I’m not missing anything in terms of strength and functionality of the base being what it should be – a strong base.
Feedback most welcome, especially from folks that have built stands to handle heavy weights. Am I missing anything? should I add more cross bracing anywhere? Any weak points? Anything else? Looks ok?
Thanks in Advance and Peace!
After considering the design and it’s ability to handle the required load and countering racking, and after calculating required materials and time to build the workbench, I decided that it was not worth it to build it as it will not save the expense, and will only add more work and time to build this bench up. I was able to find a stand on clearance that should handle the load (speced at 2200lbs) and decided to shut down this project.
Just putting this here, as sometimes projects do not go as planned, or do not make it past the design stage.. just an FYI, take it or leave it :)
-- ㊍ When in doubt - There is no doubt - Go the safer route.