ENCO has these MT straight MT sockets. I just can't make an accurate internal taper so I simply softened the rear of the socket and drilled a big hole in the...
Does anyone know of a simple design for a speed reducer that would reduce 1750 rpm to 75? Why 75? 75 RPM and a 4" spindle equals about 75 feet per minute and ...
... Pat, A point to remember, the socket, when removed, allows a workpiece just slightly smaller to pass through. With a fixed taper, the small end of the...
... Are you buying, or building??? Assuming you're thinking building a multistage gearbox with Spur Gears between two parallel plates (vs buying a premade),...
Keith, Thanks for the great response. Even tho I didn't ask the ???, I've been pondering this same problem for some machine designs I'm doodling. lance ++++...
Keith, Looking at the McMaster-Carr catalog, it appears that a 20 tooth worm gear set would provide the reduction in one-step for about $50. Am I missing...
well, let's say your motor shaft is 1/2" diam. 1" wheel would be too small, so figure 2" wheel on the motor. You need a reduction ratio of 23. So, your big...
1725 to 75 rpm you say? That is 1725 / 75 or 23 to one. One way would be in finding a worm and gear in a gear case in a junk yard but then it might not have...
Hi, Almost every reasonably capable lathe, mill and drilling maching uses a motor operating at 1450RPM (50Hz mains) or 1750RPM (60Hz mains) and produces a...
Hi All I have just finished my daughter's house reparations, and restarted reading group's postings. I have a motor running more than 2700 rpm and with a two...
Pat I found a site where the guy had used plywood pullys for V belts. At that time they were two years old and still going. I hope I can find it now. jimyjack...
Sorry Pat and all for my longwinded post. I am often accused of telling a story as driving to Toronto Ontario from Niagara Falls Ontario by way of New York...
... I like it. Actually, the grooves can easily be done with a specially ground scraper, making wrap angles less critical. One such design can be seen in...
Good ideas David. And to answer the slow speed question. The answer is EBAY! I have several dozen quality USA made re-sharpened cutters that cost less than a...
Hi jimyjack What ind of machine was moved by plywood pulleys with V belts?And what is his motor's released power? I think that this is not the case of 2.5 to 3...
Hi, OK - I got the wrong end of the stick with this thread. I assumed the discussion was for a machine in a third world type environment, not one with...
Costas and All Wood was used for wheels for a lot of years. Early autos worked them very hard as there were not a lot of roads. The auto wheel used iron an...
Ian, I like your comment and the reminder of the goals for the MM. I rather imagine that even in the third world nations they are not all without some access...
... I was discussing using a scraper (a wood turning single point tool user to make repeating forms) to make a large plywood pulley for serpentine (multi-rib...
Hello David  A laminated wood pulley would be fine,  A smaller one 12in or less would work for higher RPMs with no problem. A V-belt looks like it would be...
... 0.6 A but do not understand why it can handle 15A on Alternating Current. Breaking an AC circuit is easier than breaking a DC circuit because the ...
If you make a large wooden pulley 36" dia. +- a little it has such a large contact patch with the belt that it doesn't need groves. A flat belt or serpentine...
When you say your motor draws 8.5A, is that start-up surge or continuous. What is the rating (HP) of your pump motor? If it's within the 1/3HP rating of the...
Hello Pat  Make the bushing and parts out of Epoxy Granite . You could cast in a brass part for the bearing.   keith Deep Run Portage Back Shop " The...
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