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#121
Fri 29 January 2010, 04:44
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Buy beer, cooldrinks and snacks and invite a football team for a "turning-over" party?
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#122
Fri 29 January 2010, 05:20
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That is an option... a good one I may say.
I just checked the floor dimension, may have to place the beam right nest to a wall to have enough spce to turn... but if I have a football team at that time, can haul the whole table out in the open, do the turn over & haul back to position. Can do without those Yoga exercise building the table in final position. & I really can't do overhead weld. hmmmmm.... 
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#123
Fri 29 January 2010, 08:33
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Great progress Ken, starts taking shape !!!
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#124
Sat 30 January 2010, 02:10
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Thanks clause for your kind word.
More progress pix. The precision equipment for the table fitting. Equipment for setting up tabel frame.jpg Aligned side frame, side to side is 2260mm & I happened to get the diagenol within 1mm  Alighened Leg Frame.jpg Dry fitted bearer, Table bearer dry fit.jpg The 8 bearer on the right will house the 4' x 8' spoil board. The remaining 1480 on the left I am planning for dedicated matel machining where it will have coolent running & if required, enogh for a 3'x6' spoilboard to extend the 4'x8' working area. The last channel will set up for vertical mount parts. Please comment freely on my plan.
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#125
Sat 30 January 2010, 03:08
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When you weld the cross-bearers, weld only the 38mm tip before you turn the table over. After turning over, weld only the other 38mm.
Do not be tempted to make more welds! Oh, please also remember the diagonal braces.
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#126
Sat 30 January 2010, 03:18
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Thanks for the reminder.
Pleas pardon my ignarent, I don't really understand the welding procedure
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#127
Sat 30 January 2010, 04:59
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Quote:
Procedure 1) place bearer in position. 2) spot weld om corners of bearer to the main beam, 2 spos per sides. 3) weld the end of bearer on to the beam, between the spot welds 4) flip table over, 5) Get someone who can do overhead welding to weld the other end of the of the bearer onto the second beam between the spot weld. Mechmate Table bearer welding procedure.jpg
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#128
Sat 30 January 2010, 05:08
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While the table is upside down, make all the A welds (do not make welds A to B along the sides). Turn the table over and make welds B. Finished.
Edit: Sorry, did not see your earlier post while I sketched.
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#129
Sat 30 January 2010, 05:31
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Thousand thanks. will do exactly that.
I will fit the cross braces after welding the table bearer in this position. as I was expecting distortion & misfit. That will be tommorrow...
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#130
Sat 30 January 2010, 22:33
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Nothing beat having the feel of the actual dimension after dry fitting the table.
Took this opportunity to give a last minute thought over the working area allocation... This is what I came out last night while turning in bed... Working area layout.jpg The work is loaded from the right, there are 50mm pace for vertical mounting for making joints. will this be too little for most case? Then there is the usual usual 4'x8' working area Then there is a 3'x6' area for future use And reserve for A-axis where the table bearer will not be attach at this moment. Please do comment freely before I weld the cross bearer up, your expert experience are highly appreciated.
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#131
Sat 30 January 2010, 23:00
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You are making it very big and hard to reach areas by leaning across the table.
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#132
Sat 30 January 2010, 23:36
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Walked aroun the table again & it is really far & deep....
Looks like a boxing ring from this angle... Mechmate boxing ring.jpg A tat too greedy... hmmm... narrow it down is easier then shortening it... Last edited by KenC; Sat 30 January 2010 at 23:55.. Reason: add pix
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#133
Sun 31 January 2010, 00:23
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What are the standard MDF board sizes in Malaysia?
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#134
Sun 31 January 2010, 00:49
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#135
Sun 31 January 2010, 01:15
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sorry, didn't see your post while editing the layout.
commonly, MDF, plywood, block board comes in 1220x2440 & 915x1830.
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#136
Sun 31 January 2010, 01:37
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Why use 1870 as a width outside the channels if your working space (boards) are 1220? I would go for 1650 over channels:
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#137
Sun 31 January 2010, 01:45
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Earlier consideration is to feed the 915x1830 on the table lenght wise... but I admit I was greedy & too gangho...
Another advise needed, I knowing myself too well that A-axis will come some day... I am considering to leave the last bearer on the left, will this affect the structural integrity?
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#138
Sun 31 January 2010, 02:09
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Ken,
looking at your photograph I see that your main X axis Beams have the web of the beam facing out, according to the drawings the web should be facing into the machine. Not sure if you have done this deliberatatly or not ?? Cheers Tony.
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#139
Sun 31 January 2010, 02:16
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Yes, so that I can access my broom there.
and easier to fit them up.
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#140
Sun 31 January 2010, 02:41
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Quote:
If your beams face out, your future dust collector foot must be limited in width.
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#141
Sun 31 January 2010, 03:12
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This is my question
Working area layout 3.jpg
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#142
Sun 31 January 2010, 03:20
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Now this feels better... Thanks Gerald.
Final width of table.jpg The floor in this part of the shop is not as flat as the previous position, you can see the sides lean into the center, checked with a spirit level & the buble is on different side of the limit lines... need some work on it tommorow when its brighter... Will chop the bearer to size tomorrow, now is the time I wish I have a metal cutting saw like the one Tony has... Last edited by KenC; Sun 31 January 2010 at 03:29..
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#143
Sun 31 January 2010, 03:52
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We originally got a 48" [1220mm] wide ShopBot because they refused to go wider. Our standard boards are 2750 x 1830, which meant that a half sheet 1375 could not fit. So we first increased from 1220 to 1375mm. Just check your board sizes carefully before you make a final decision.....the difference between 1220 and 1375 was very important in our country.
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#144
Sun 31 January 2010, 03:56
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Quote:
, I misunderstood your question.... I made another mistake... another big one...You save me again. Thanks
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#145
Sun 31 January 2010, 04:35
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Ken,
Should not be too much of a problem just swap them over and that should fix things up. Cheers Tony.
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#146
Mon 01 February 2010, 03:28
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Thanks Tony your are the one who save me from committing another major mistake.
Its great to have you guys watching over while I racklessly bulldozing toward the date line... Lesson learn, " Always a moment to consolidate the situation." Finally welded the bearers. you can see my temp brace had slagged, should have use something stiff, like a pipe or something... Cross bearer welded.jpg Anyway, will fit the braces on & make some last minute alignment.
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#147
Mon 01 February 2010, 03:36
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You must put in the final strong braces (with diagonals) at the ends before you turn it over. (the channel supports are only weakly connected with those single welds now, and there is going to be a lot of stress during the turnover)
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#148
Mon 01 February 2010, 03:42
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Looking much better Ken
It did not take you too much effort to rectify the situation. Cheers Tony.
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#149
Mon 01 February 2010, 03:50
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Tony,
Require some weight lifting exercise. It would be much difficult after welding... Thanks again.
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#150
Tue 02 February 2010, 02:12
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Cross braces welded. Get the paint repair & she is ready for the turn over party
Cross braces welded.jpg
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