I have an advantage over a lot of folks on the list as I have a full machine shop. BUT the MultiMachine fascinates me and I do believe it's my winter project...
From off-road.com I got a long article on Toyota Land Cruiser specs. Junked Land Cruisers can be a major source of MM parts in much of the world. It's in...
Hello, I read the milling machine book first, then the lathe book, lots of good construction ideas. I just picked up the shaper book and deluxe accessories...
Hello, In one of the other yahoo groups that I follow the moderator has been modeling ideas in wood. Nothing fancy just good enough to see how parts fit...
Joe I think that you are right about wood first, steel later. I will never learn to draw well enough to get 3D things to scale. My problem is that I have...
A metal casting expert who can tell us about when we can use plain zinc or when to use a zinc/aluminum alloy. In particular, allowable fpm's with oil can or...
Pat, I would guess that for the bearings on a MM just about any aluminium alloy will do to get someone started. Once the machine is up and running it can be...
In an effort to further my knowledge of machining I turned down the shaft of a cutter for the mill. I work for Boeing and there are cutters and tools in...
George scanned and uploaded 2 articles from the 1925 lathe book. The drill bit tool was one that I had asked about and he also included one that I had totally...
... shaft of a cutter for ... various conditions redily ... outside cutting surfaces ... I scrounged for my ... almost new South Bend ... either. I first...
I have used this method for boring bars and other cutters for many years! My method is to use a drill bit the size of the broken bit to drill the proper size...
Pat I made a little drawing of a drill bit tool holder that I think might be very solid and easy to maintain. I borrowed the simple post concept from the Tiag...
Gene This is great! Would you mind taking some pictures (as many as you can!). Using your experences, can you think up ways of using broken bits to make a...
Thanks Jeff I never thought of just using a block for the bit holder. Both the Bay-com tool and the PM tool seem to have the bit at an angle, if you did this...
Is making a cast bushing as simple as making a pattern of some sort, adding a little flour and water or motor oil to sand and then just pouring whatever zinc...
Pat, check out http://www.buildyouridea.com/foundry/lost_foam_howto/lost_foam_howto.html I'm sure you will get some ideas. Pablo ... From: Pat Delany...
Pat, Almost that simple. Make your pattern out of wood, but take into account your metal's shrink rate. Seal up the pores of the wood with some shellac or...
I put it in straight so that the bit could be turned in several small incraments to get multiple sharp edges from one easy grind job. I thought about curving...
Thanks everybody What confused me about casting in an open mold was the head pressure thing. Could we just cast a 6" deep bushing when we just need a 3" one ...
Can somebody tell me about the quality of the pipe used for drive shafts. How round is it? How thick is it? I have assumed that since it has to not vibrate, it...
All driveshaft tubing I have played with has a seam inside, it is basically HREW tubing. Thicknesses vary. street use vehicles have anywhere from .095 wall, up...
Pat, There is a head pressure problem in lost foam but not in a green sand mold. An open faced sand mold will have shrink cavities though. Just make the mold...
Gene The design of a "third world" MM is about done. We can use open mold aluminum alloy castings along with our temporary lathe ideas to make the bushings,...
I need to connect two 12 volt batteries together to get 24 volts. Am I right that you connect the ground from one to the positive on the other, then connect...
Instead of trying to make the bearings ( wood or cast ) fit inside the bore why not make a 2 inch thick bearing that bolts to the face of the block and a...
Connect one battery's positive to the other battery's negative terminal. The remaining unconnected positive and negative terminals are thr 24V positive and...
Hi ... No, you connect the ground of one battery to the positive of the other, then use the unconnected ground as the ground to the item being powered and the...
Pat I reviewed the toolholder design with a few of the machinists at work and they weren't teribly impressed. They said that it should have at least a 7 deg...
