Tiddy CNC.

[TonyD]

Thanks Jonathan. I thought 260 was a lot as it was but happy to leave it there, if as I suspect this is the basic design I go for.

[Boyan Silyavski]

Just a note there about the Estop button: Buy a brand one. The cheap chinese ones have weak springs and stick sometimes right when you need it. I have el cheapo and it betrayed me a couple of times. For my new build i bought Japanese and the difference is huge. believe me, you will need an Estop button

[TonyD]

I spent some time today calculating the cost of the steel. Not sure its a useful metric (for discussion) but there are just over 30M in steel box in the design. I was quite dismayed to start checking on the web for pricing only to discover several sites quoting around £350, which was more than I had in mind. Then I came across a company called ISG Steel who routed my call to the nearest depot (I live in Berkshire). Thier quote on a like for like quantity of 50x50x3 steel box section was around half the websites I'd found up to that point, also they were friendly and when I mentioned I needed more than just the one length offered me a discount. From then on in I looked at how to cut the required lengths from 7.5M stock and came out at 4.2 lengths, which was dissapointing. I modified the design to use small 5cm lengths of steel to support the bed on each of the 5 side member points, instead of a continuous rail (Orange in the picture above) and that nicely got me to all the steel in 4x7.5M lengths. Once I asked for a quote including the top rail material of 90x50x3 the whole thing with shipping came to £220. It seems a fair price and much better than many of the websites I found.

[JAZZCNC]

Tony I pay around £26-30 depending on steel prices at that time per 7.5mtr of 50x50x3. This is from local steel supplier so I'd checkout any local steel stock holders because that 90x50x3 seems to be costing quite a bit. My local supplier delivers free because I'm just up road but he only charges £15 for 20mile radius and i'm sure other steel stockist's will be similar.!