a Steel Box Section Build with SBR20 & Ballscrews Plus a few questions

[grain_r]

Good Evening well I have been lurking on here for a while again and watching everyone making steps forward. I have ordered placed and collected my box section although if I did it again I would opt for 5mm instead of 3mm steel as I think I have given myself a few mini headaches of threading and bolting and would have only been another £50.00 but oh well you live and learn.



The total metal cost was really good I thought I would put the costings on here to help people designing machines as a basis pricing although this price was specific to my machine.

X1 - Cut List – 500 MM 5mm x 50mm Flat Bar £5.00 each
X2 1300.00 mm – Top Rails
X4 550.00 mm – Legs
X2 1032.00 mm Side Bars
X4 287.00 mm Side Uprights
X8 230.4mm Angles
X3 950.00 mm End Support & Mid Supports
X2 95.00 Table Ends
X2 1032.00 mm Table Middle Lengths
X2 850.00 Table Middle Supports
X2 952.00 Gantry Horizontals
X2 200mm Gantry Seats
ALL OF THE BOX SECTION IN 5MM £155.00 LUMP SUM
ALL OF THE BOX SECTION IN 3MM £100.00 LUMP SUM

I had the metal cut because as I said in the email to the company that was cutting it I wouldn't be able to get as accurate as they would, (Well that certainly wasn't true) the cuts are withing 1mm as they said but that just happens to be on the one side they are really out. but at least it did all fit in the car this way oh well.

I thought it might take an eternity to get the accuracy with a file and so I have now purchased a SIP sander & Lanisher (I have always wanted one anyway so a nice justification ) I know it says no metal but it is really good and I am now getting the ends half correct and then finishing them on the Sander it is so well built it doesn't complain at all so I will certainly be buying SIP again.


Well it has then sat there for a while and so the other night I just had to sit there and measure every piece and I have now labelled everything (I should have done this before) and it now makes sense again. also if I had done this straight away when I bought the metal I would have found that my top rail was not in the pile so I will get another and this time I'm cutting it. at least I will get to play with the sander again.
Not a single piece of wood is safe in my garage.


I have been learning tig welding for the project by making a welding trolley as everyone always seems too and I am needing the grinder less now. so its all relevant for the project, I always seem to be going the other way and start making something else to make the next thing in the chain.












Well at least its all practice. I started out wanting a welding trolley and what I have finished with is a welding go cart well al-right nearly finished.