Member postings for AdrianR

I went through the what oil to use a while back. The advise I got here is ISO VG 68/ SAE 30 Hydraulic oil is fine. Also a lot cheaper than the little bottles of 'special' lathe/mill oil some companies sell.

Adrian

Here ya go **LINK**

You are lucky to have a working one.

I have one in bits at the moment, trying to work out how to repair badly worn slides.

Adrian

Oh dear, I think I need to get new glasses, I read that link as Spandex. Now that would be a different mill accessory. Sure would get the neighbours talking as you stroll out to the workshop in your best Glam Rock outfit.

Adrian

I just did a google for miniature chequer plate and found this site **LINK** and **LINK**

Hope it helps

Adrian

Possibly as colourful as Bob's language when he found the problem

Adrian

Hi Ron,

Recently in another thread there has been a discussion on how best to mill a 45 degree angle. Just wondering how you did it?

Adrian

Couple of thoughts.

The hard skin should be very thin, so you should be able to get under it with a carbide tool.and an aggressive first cut.

Are the sides hard too? Can you get under the skin from the side?

As it is a wheel wont you need a hole in the middle for the axle?. You could make the hole in the middle on all the wheels. Then make an arbour and with out removing it from the chuck mount the wheels to finish them. You wont need them to be round then, so the angle grinder is an option.

Adrian

I love the manly pink marigold safety gloves. I can see that might work, the salt water is just a water resistor. Although I suspect there is a welder attached just out of view.

When I was a kid I made an arc light using a 1KW electric fire element and carbon rods from D cells. Great way to top up the skin cancer.

Some of his other videos are great, free electricity anyone? **LINK**

Adrian

In the CW5045 wiring diagram on the linked page it shows the motor being wired in parallel and what colour wire goes where.

Adrian

I would like a set of spot drills but can't justify the cost yet. I am no expert, and probably most of what I do is voodoo, but what I do to start the hole is;

If free hand drilling use a center punch first, on the mill i dont bother.

Then I use a center drill, but all i do is make a dimple, I dont go any further than the conical end in the tip. So really I use the center drill as a very stiff small spot drill.

Then with the drill take it gently to start so the drill can find the dimple. At this point just before the drill cuts I look for any side ways deflection and re align the work if needed.

After that a gentle feed, as I was taught, "Don't push it, let the drill (saw) do the cutting"

And of course the deeper the hole the more frequent backing out to clear swarf.

Finally as others have said, good and sharp drills. I have two sets, general making holes and a more expensive set reserved for the mill and special holes.

Adrian

In my example about the rust spots in the sink, I actually used acid to remove the iron. Incidentally I also got caught out by scrubbing the toilet bowl u bend with a brillo pad. It left a grey patch, which I removed with citric acid toilet cleaner. Thankfully before my wife saw it.

Adrian

Sam,

I have seen patterns like that before.

First thing it reminded me of is how rust forms under paint. Where a small hole in the paint lets water and oxygen in and allows the rust to start. I then understand that the difference in oxygen levels between the hole and edge of the rust spot causes a small electric potential. The potential then promotes rusting.

The other is rust spots on the stainless kitchen sink. This was caused by very small iron filings, from a angle grinder. They stuck to the sink surface then over night rusted and caused blob stains like above. This is rusting is promoted by galvanic action due to the dissimilar metals.

So my guesses are either there is a coating on it that is imperfect and electrolytic rusting is happening. Or the surface is contaminated by very small metallic particles which are causing galvanic rusting. You say it was cut using EDM, well that creates a lot of very small metallic particles. Both the metal being cut and from the copper electrode.

Adrian

+1 for Ketan's post.

I know MEW has to make money, but it is such a shame that the two beginners series are not supplied in the Article Reprints. Having a beginners start hear section to the MEW site would also be a great benefit

Adrian.

I can't remember where, but recently I read that it is better to use course blades than fine. This is because each tooth needs a feed, so the more teeth the faster the feed rate and hence easier to feed too slow and rub blunt.

Made me feel better about the course blades I have.

Adrian

For a 10mm cutter you should chose the 9-10 mm collet not the 10-11. Yes the 10-11 will tighten to 10mm but it takes a lot of effort. The only time I chose a collet that is larger than the size of the tool is when it is imperial.

If you have access to the MEW archive, there was a series called Milling for Beginners which started in issue 261, then is in every other issue. It is very good.

Adrian

Edited By AdrianR on 19/05/2020 17:24:42

I would say you should look at the Chinese mill in the classifieds. Assuming it is still for sale, it could be just right for you. It looks to be a SIEG X3 which I hear is a good mill like its newer version the SX3. Which I have just bought.

Adrian

My first flat had concrete lintels so hard my hammer drill wouldn't touch them, had to use one of these. I still have it, still slightly bent from those lintels. This was before I learnt about screwing a bit of wood to the wall before trying to put up the curtain rail.

Adrian

My saws don,t run true and ones I have seen on youTube also dont. I have always assumed it was a combination of the arbour and taper.

But to cut evenly all the way round you would need a constant feed and the saw to be totally true. The slightest variation would be noticeable.

I guess the way to know if it is the saw or arbour, is to mark which side of the saw is touching first then turn it 180 degrees. If it still touches first in the same place it is the saw, if not it is the arbour.

Adrian

I found 11V9 CBN wheels on ebay la-877109388934&abcId=1139126&merchantid=118974502&gclid=CjwKCAjw5Ij2BRBdEiwA0Frc9fM9qBPXTHmGhGxv6yJTxar1F0IVUi6GPPoUSGOaaUh3sD3Q4_TwyhoCPKAQAvD_BwE">https://www.ebay.co.uk/i/174264707109?chn=ps&var=473272588092&norover=1&mkevt=1&mkrid=710-134428-41853-0&mkcid=2&itemid=473272588092_174264707109&targetid=877109388934&device=c&mktype=pla&googleloc=9041085&campaignid=9794971188&mkgroupid=98649237823&rlsatarget=aud-629407025185la-877109388934&abcId=1139126&merchantid=118974502&gclid=CjwKCAjw5Ij2BRBdEiwA0Frc9fM9qBPXTHmGhGxv6yJTxar1F0IVUi6GPPoUSGOaaUh3sD3Q4_TwyhoCPKAQAvD_BwE

My favourite to read to my kids was hairy maclary, I could do voices for all the characters. The best was Scarface Claw with his Yeewoule.