The Home Machinist!

I have used the following method when building rc airplanes, it may work here. I can’t read any dimensions so you will have to adjust accordingly. I also assume you are trying to drill 2 sets of 4 holes inline on the large casting. Use a piece of wood that is large enough to set flat on the surface ...

Here's an old video of how one man moved heavy 'stones' and a building by himself with no machinery:

https://m.youtube.com/watch?v=pCvx5gSnfW4



Bob

Have you found any more out about your collet seating problem? From your description, my guess would be that your end mill pulled out of the collet first. Then as it dug into the steel the problem with the collet occurred. I don't have any new suggestions regarding the collet but I would suggest usi...

JoeCB: I may not understand exactly what you are trying to do, but if you are winding 'standard' extension springs it is not difficult. When you wound the compression springs you would have been guiding the wire onto the mandrel ahead of the previous coil. Depending on how close you wanted the spaci...

Charles: My brother and I both have 22/45 MkIII's and when they were new it was not uncommon to have a least one or more jam per magazine. The jams were typically failure to eject, sometimes failure to feed and a few stove pipes. I eventually removed the loaded chamber indicator and have not had a p...

Although there are a few RC motors that may turn in the 20,000+ range most are well below that. I fly one direct drive on a sailplane that is around 300W and is in the 8,000 rpm range depending on voltage. I would guess that in the power range of interest (200W) these motors may be running around 10...

Curtis: If you haven't looked at the motors used in the RC airplane hobby community you may want to check that out. The link provided is a place where a number of folks in our club buy motors, controllers, and batteries at a good price. I have not dealt with them personally so I can't comment on the...

I have been given a lot of used diamond wheels over the years from our shop. most are the smaller ~3" cup wheels but some are for my surface grinder. The tool and die maker gave me a couple pieces of Molybdenum to dress the wheels. For the surface grinder these are mounted in a base like a norm...

The one item I didn't notice being mentioned before was the actual technique of sweeping the bore with telescoping gages. I was instructed to insert them at an angle to the bore (handle low while gage section was vertical) tighten lock as previously discussed and then make ONE sweep across the bore ...

Willy, I wasn't sure from your description the exact condition you have. Did you measure the bore in the cylinder to see if the diameter was tapered? If the bore is not tapered I don't think the headstock alignment is the problem. If the head stock was pointed out the back 10 degrees (exaggeration) ...

I just picked up an MM12 Meteor Drill Grinder and was looking for an operatiing/setup manual. Can any of you help with a link or a copy of a manual. So far my searches have come up empty and I am excited to try it out but thought I had better wait to see if I can find a manual. Any help would be app...

Jim: I built one of the tool holders from your plans and it works great. I always had problems trying to grind my threading tools by hand and this made them very easy. Most tool bits I grind by hand, but I have still used the fixture a number of times just for ordinary bits. Haven't tried an interna...