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| BiggerHammer:
Definitely a nice looking mill. Must have been a PITA to drag that thing across the barcode scanner in the checkout line. :lol: |
| timeone:
Funny the barcode sticker That was the transport company I bought this machine from Scotland and had it sent down to me in Dorset on a pallet by palletline cost £50 cheap as chips as they say. was a bit of a problem getting it up my drive way but the driver was very good and got the job done. gave him a drink for his extra effort. The fun started when i had to get it of the pallet i hired an engine lift but the pallet was to big and the legs of the engine hoist wouldnt go around enough to get the hook in the centre so i blocked up under the pallet and cut the corners off. after a few attempts the engine hoist was in position. and lifted it fine, me and the wife then manhandled to thing into postion My lathe though quite small was split in 2 halfs when i bought it and i got it in the estate car and drove it the 100miles home. a helful fried was able to help lift it out and reassemble |
| picclock:
Hi Since no one has mentioned it, possibly the best way is to cut the inside and outside cuts on the ro-tab at one time. You need to ensure the ro-tab and spindle are aligned accurately as above. Lock the X axis if you can. If you have a Y axis dro then zero it here. Then clamp the corners of the square piece of metal you are making the part from centrally on the table - just by eye - with a piece of 3mm mdf or similar underneath. Then using a small mill, say 3mm cut the inner circle, setting the Y table position to the radius - 1/2 the cutter width. Clamp the work from the inside to hold it for the final cut, if this is not possible leave two or three places to hold the work when its nearly cut through. Proceed to cut the larger diameter, again by adjusting the Y axis but this time to the outside dimension. Remove the part and cut through the thin holding pieces if you needed then and finish as required. With this method the part will be perfectly concentric to within the limits of your equipment. Best Regards picclock |
| timeone:
Well i managed to make my bracket though not perfect it is a good attempt i found some of the cut was kind of rough i tried several cutters but got the same effect so maybe someone could suggest what went wrong I ended up making it in 10mm then cutting to about 8mm then turning over once done and milled until it dropped out Took about 3 hours to do but next time ill be quicker and better ive got to trim the ends to size and saw cut down the middle of the smallest end so nearly done |
| picclock:
To get best finish cut to within 1mm or so then use a really big cutter - 20+ mm and progressively remove the rest, making the last cut around 5 thou. Assuming Aluminium, lube with paraffin or WD40 at least on the last two cuts. Cut from one side only into a piece of MDF or similar to prevent damage to the rotary table, with a full depth cut. Use brush to remove swarf between cuts. Ensure column is locked for best results. Could climb mill for the last cut if your really picky :thumbup: I've done bigger than this (5" inside - 6" outer) in steel and aluminium and apart from it taking time it seems fairly straightforward. I hacked out the centre(s) with some 3mm carbide endmills at flat out speed (for my mill). Broke a few due to too much feed and slot not cleaned out :bang: . Trick for finish seems to be really fine well lubed last cut with V large endmill. Hope this helps Best Regards picclock |
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