Stell frame cnc 1500X1000. Adjustable table your opinion please

[JAZZCNC]

This is good engineering practice and I don't know if you already know this but if the drill moves off centre this is how to bring it back into line;

Nah good engineering practice is to do it right first time and use a proper spot drill not some poxy pin prick mark.!!

Looking Good Vagelis don't drop it on your toes mate. . .Lol . . . . . .Drilling & Tapping 100's of holes in 10mm steel is good for building character and stamina needed to setup and run CNC machine. .

[EddyCurrent]

Nah good engineering practice is to do it right first time and use a proper spot drill not some poxy pin prick mark.!!

That is correct but it's not what I said.

I said, ". . . the holes have been marked with both a centre and an outline of the hole. This is good engineering practice . . ."

I know this because I have served a proper engineering apprenticeship when things were done right.

[ba99297]

One small problem
I phone the supplyer of west system resigns here in Greece and he told me that for 105 resign he only has the 206 hardener and not the 209 ( that is recomended by the members here in my cncuk). Do you think that i can do my Job with the 206 hardener and not the 209. The temperature here in Greece is 32-35 and nearly 25-30 at my worklace.

Thanks

[Clive S]

One small problem
I phone the supplyer of west system resigns here in Greece and he told me that for 105 resign he only has the 206 hardener and not the 209 ( that is recomended by the members here in my cncuk). Do you think that i can do my Job with the 206 hardener and not the 209. The temperature here in Greece is 32-35 and nearly 25-30 at my worklace.
Thanks

I have used the Wests System and spoken to them a couple of times. I think you really need the 209 as it has a very slow cure and that is what you need for the resin to level out. I purchased mine here : http://www.ecfibreglasssupplies.co.uk/ not many suppliers appear to stock it but can order it for you. ..Clive

[Boyan Silyavski]

I agree, i don't see how it would be done without the proper hardener.
I purchased mine from http://www.dansonmarine.co.uk/ and he shipped 2 packs to Spain for 17GBP for 3-4 days.

Maybe buy locally the epoxy and purchase only the hardener, have to check with them though.

For the Hiwin 20 rails the minimum width of the epoxy should be 40mm, that leaves 10mm each side of the rails, cause epoxy rises like 5mm near the edge. I made mine something like 5mm high. Used magnets 4.5mm thick at both corners both sides, to check visually whats going on and make perfect 5mm height


About the laser cut pieces, i dont see why they would charge more for the holes. I ordered mine with holes, that's was the whole point, to save time drilling precisely. Even the 4mm holes were perfect.

[ba99297]

Clive_S and Syliavski thanks both for your answers
As for the holes Syliavski there is a limit about the holes that laser can cut in relation to the material thickness.
So at 10mm plate isnt easy to cut 4mm holes. Also the charge at laser cutting is according the time the machine cuts ( this of course is influenced by the length of cut, material thickness and material )

Vagelis

[ba99297]

Hi everybody
Today i go on with the gantry
I start by drilling the holes for the bf/bk on y axis. to do this i remove the 120X60X3mm middle tube of the gantry. I put the ballscrew on place and point the holes


Then i put the tube back to the gantry and start aligning the tubes with the steel plates. After that i start spot welding the pieces. With small weld in order not to produce muh heat



At this photo you can see the 1120mm long m8 bolts that i use to keep in place the side 10mm steel plates


After the side spot welding i had to weld the tubes at their side that atteced each other
First pass i start with spot welding every 10-12 cm. Second pass i weld between the old spot welds ( every 6cm) and so on.... In order to have better result i turn the gantry a bit


Finally i end with this result



Then i put the front steel plate on the tubes construction and temporarily i put the rails on, in oredr to see where to drill the holes in order to bolt the plate to the tubes



The only question i have is about the way i weld the tubes. Are these spot welds ( every 3-4 cm) enough or i should make a full weld

Thanks for your time
Any suggestion will be glad to hear

Vagelis