HOW TO TRAM A BENCHTOP MILL | Optimum MB4

[@pieterveenders9793]

In regards to your comment that correcting the mating surfaces is still beyond your skills, there is a very easy yet brilliant solution! The normal way to do it is through hand scraping, which will yield extremely accurate results as far as flatness, and will also produce superior bearing surfaces if they need to be lubricated because the depressions produced during scraping will hold oil very well, but scraping is also quite an art form to do properly. If all you want is flatness down to a couple micrometers, of even below 1 micrometer, then you can do it by rotary tool. What you do is you still use an ultra flat reference surface like a granite surface plate or a cast iron straight beam and coat it with a thin layer of blue oil paint and apply it to whatever you wanted to scrape. However instead of hand scraping all the spots the blue paint transferred to and thus are too high, you use a small handheld rotary tool or one with those extenders and one of those coloured aluminium oxide or carbide coated epoxy resin inserts for the rotary tool. I used it to flatten the absolutely horrible bed ways of my mini lathe and it works insanely well, down to sub micrometer flatness over several dozen centimeter distance!

[@schublade4]

When sweeping the indicator on the table it should be noted, that this method shows any perpendicularity error between the spindle axis and the table plane - thus it is also necessary to make sure that the table plane is parallel to the x-axis and y-axis by putting the indicator needle on the table and moving in x/y. This also applies to the reference square method as we want the column/head to be parallel to the movement of the x/y axis not just the table surface (which could be unevenly ground or not parallel to the x/y plane) Super Video sonst - alles Wesentliche in unter fünf Minuten erklärt!

[@SimonHollandfilms]

excellent

[@pirminkogleck4056]

One of the Best Tramming Videos Out there ! Echt Top

[@christianhenderson5471]

Keep chasing the algorithm!

[@Gumbatron01]

Excellent video, very helpful. Where abouts did you get your shim stock pack from? I'm looking for something similar (for the same task), but not able to easily find anything (probably because I'm in Australia and materials that are easily available in the US and Europe seem to be unobtainable or extremely expensive here).Think I found the product you got and the company it came from.. unfortunately, they do not have any outlets in my hemisphere.

[@ChristophLehner]

You can also use feeler gauges, and just cut them up. It's not a permanent solution, the better way would be to do it like Stefan götteswinter, and fill it if epoxy, so there is a solid connection

[@Gumbatron01]

@@ChristophLehner Yep, I'm doing that now. Bought a couple of cheap feeler gauges to cut up, but will likely go with the machine epoxy solution in the long term... if I can find someone who sells that in Australia.

[@miguelcastaneda7257]

We used to use cellophane from cigarette wrapper that's. 001 thousands thick..or piece of soda beer can they used to be .004 thick now their about .002 uses to do it to align punches for dies on punch presses...job has to get set up

[@seanwolfe9321]

How do you decide if what you’re seeing is column lean OR head tilt? Won’t they look the same? Even the degree markings for head aren’t perfect & the slightest amount of error can be measured.

[@ChristophLehner]

Head tilt changes with the quill movement, column lean changes with zaxis movement

[@railgap]

@@ChristophLehner LOLWUT - recycle that PoS!

[@ellieprice3396]

Good video. Check out Mr. Pete's #662 tramming device for comparison.

[@paradiselost9946]

only comment is its better to clock to a fixed point on the table rather than sweep across. usually a ball. no guarantee that table top is parallel/square to slideways. yes, its a bit more tedious as you gotta twiddle handles...

[@MSM5500]

_"typical import square collumn geared head benchtop mill"_ the major problem is that the vast _typical import_ is a Cinese crap such as SIEG, which *has no option to adjust spindle axis alignment in reference to the column guide* at the bolts are buried inside(!) of a head stock housing

[@miguelcastaneda7257]

Hmm pallet plate bolted to milling table and shim it..just a thought..

[@Doppiovetro]

awesome! thank you!