The Shop > Tools
Sieg SX2p HT Review
Will_D:
So lets start by degreasing and cleaning the two slides. I separated out the little bits: Gib screws, clamp bolts and the other bolts and dunked in white spirit. Gave them a shake or 3 whipped them out to drain (with a magnet) and then used said magnet on the bottom of the yoghurt pot:
As you can see from a VERY small selection there is a bit of CI dust in there.
So what about the Big bits? As it was a sunny but cold day half an hour in the back yard and I had scrubbed the castings clean. I wonder what would be in the bottom? Recall that the castings had already been wipped down with paper towels and WD40 (Ok Quickly).
This is what I recovered:
We don't want that around our slides.
The lead screws were scrubbed and then mounted in the lathe and tooth picks/paper towels were used to clean the threads (Sorry -no pic). When the paper was clean I stopped :thumbup:
So first in went the cross-slide: adjusting things up just right. Note: End float is of the order of 0.12mm. I will be discussing end float on this machine in more detail. At the moment I am just trying to get smooth slides/gibs.
Quick picture:
Now its time to mount the table and repeat the setting up of the gibs and end float.
Once the slide was sliding nicely it was time to check the orthoganal movement betwen the two slides (as shown above). With the slides still smooth I got < 0.01mm movement at the 3 extremes (Left, middle, Right)
So thats it for tonight. Tomorrow is to measure up for the DROs :ddb: and start checking the column/quill realationship to the table.
kayzed1:
i bought mine about 6 weeks ago as a drill as i needed to drill some holes that the tap would not drop through, 1/2mm:doh: it is a fantastic little machine. I found as you, not much CI muc and the clear grease come off more easily that does the red stuff. I am very pleased with my purchase and should have gone to ARC before i wasted so much money on duff kit.
Lyn. PS: hope you have many many hours of fun with it.
chipenter:
Hears my set up milled a 3mm T slot by clamping a spindle to the base , it's a 300mm DRO and is about 15mm short of full travel , I was going to make some stops but not needed them , the X is on a single bracket at the rear whith a remote readout .
mechman48:
Hi Jeff
Nice job.. :thumbup: a bit confused tho' .... 'the X is on a single bracket at the rear whith a remote readout '... your pic shows you have the 'X' axis already fitted with single bracket on front, do you mean either the 'Y' axis (should be on the side ) or the 'Z' axis is fitted at the rear... :scratch: ?
Cheers
George
Will_D:
Tramming 101:First let’s check the axis definitions:
The Y-Axis handwheel moves the saddle in and out towards the column
The X-Axis handwheel traverses the table past the column (also usually the longest axis)
We never have a problem with Z, it’s the vertical movement of the knee, quill, head whatever.
The biggest error is usually a rotation about the Y axis so this is what we check first.
A quick check with the square and test bar shows the gap:
Now as the test bar is “not a test bar” it’s not guaranteed to be accurate. So rotate the collet 180 degrees and check again:
Yes still there! So check the other side of the bar for consistency:
So it is obvious that the left hand side of the table is Low and therefore the column needs packing on the Right hand side.
Now the column fixing face is a bout 160 mm wide so I will set the trammel to 80 mm. That way I should get a measure of the amount of shim needed.
In the above photo the clock has been preloaded and the needle set to 0
Now rotate 180 degrees and we see we have dropped about 0.3 mm
So slacken off, add some shim ( I used a 15 thou (0.38mm) feeler gauge blade) and tightened things up and checked again. It was interesting that as I tightened the 4 bolts up I could “walk the error out”. Eventually all were tight and this is what greeted me:
Also even though there was a similar error about the X-axis when I checked that I was within 0.02 mm!
I left the feeler gauge in place for the minute as I intend to start cutting some metal (Usuall new mill stuff “T” nuts, Clamp Bars, Table buttons, Circular Squares and the like. This should bed things down and then I will check again to see whats what.
I am pretty happy with the result so far. Can’t wait to start modding the mill!
This calls for a beer: :drool:
A limited edition Westvleteren 10.2% masterpiece, bought to help save the Abbey! It the first time ever this beer was sold on the open market. You used to (and still do) turn up a the monastery and see what they will sell you!
Next up is to measure up for the DROs and start cutting metal
BTW: Great opening game to the 6 nations Pitty we (I am Welsh) didn’t win, but as I live in Ireland: Bring on Italy
Cheers WIll
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