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read the book or look up the info on using heat forces to straighten metal things- its a very effective method but not many know it well. proper application of heat and selective cooling can...

yes, you can use that 400V VFD to control your motor. it will cost a lot more money and be very impractical but those limitations are imposed by the choices you have made. its a lot more expensive...

looks like it was made with a taper for alignment onto a shaft or as a positioning stop. if the item was pressed too hard onto the taper or vibrated under pressure a nonductile material could easily...

post this on the sheetmetal boards ( chaski, etc.), they get a lot more traffic in the guys that do this stuff.

Mariss,
thanks for the top quality reply, thats a great piece of work and its backed up by real-world facts, knowledge, and hands-on experience.
its great to see your interest and your ability to...

NOW - go to ratshack or otherwise and get an LM317 voltage regulator. use a couple of resistors to set it up and calibrate to the battery voltage of the digital caliper ( probly 1.5 volts if a single...

just as the tapping and die- operations ont he lathe and the drill press can eb done by turning the machine spindle by hand, so also can the singlepoint threading. it is NOT as beneficial as the...

1. these are designed to be MANUALLY operated machines. when they are modified to be CNC or NC operated, and in most cases these modifications do NOT use all of the factory parts to attain the very...

FULL STOP.

1 - dont cut anything that doesnt need to be cut. Holesaw or chaindrill the core out first so you dont turn a pound of material into chips- this just wastes tooling and time. ONLY CUT...

in a pinch or a onesie setup - many have used a dremel-type tool that is held in a hose clamp or a u-bolt hold-down fitting onto your compund. use whatever clamping arrangement necessary even up to...

use steel pipe, coat it with soap to prevent excessive carbon loss, carbon soak it or use a carbon enhancer like kasenit if you can, then heat to bright red and superquench it. other sources of high...

Im having a problem on a speedway minilathe- when trying to cut a threadpitch using a 3 gear combo -- which includes a moderate to a large gear on the A or B axle- the gear on one or the other axle ...

if I were in that boat - I would first pick up an MSC or ENCO catalog and look for the taper adapter that had the internal taper to fit that shaft. get one thats unhardened and big enough for the...

I have chinese and other imported items that work fine also. I have seen numerous ones that are clearly a mistake to expect high quality from the tool of the obvious poor quality of construction,...

To all the people who are thinking about spending hard earned $ on a shoptask - Please do your homework and read up on all their quality issues BEFORE you send your hard earned $ to JT or any others...

sears has their "tool centers" on sale frequently. they are heavier than most tool scoots and bigger. if you put HD casters and pipe handles on these they make decent rollaway worktables and big...

the biggest problem with using a superbeef motor with a low-tech manufactured minilathe is that all of the small flexes and tolerances that are out of spec will now become more prominent as you are...

4140 is a hardenable alloy but it may be moderately hard already- check and see what stuff you have. after machining it into a tap form you may be able to harden it, and possibluy case-harden if ...

even though its a long ways after the time it would be used at first, you need to learn how to do a business plan and do it, that will tell you a lot about what may be profitable business for you to...

the next strongest would probably be zinc - and the part can be made from starting with the one you have. glue the broken plastic one together so it makes the correct form, use it for the master for...

On a retrofit using a quality fullsized machine or if there was a specific manufacturing task in mind - by all means I would say the ballscrews are the way to go. I agree with you philosophically,...

make sure you tell the doc what you have been using that thing for when he asks to see your tongue. i'll bet that would be a new one for him. I wonder what the customary and reasonable fee schedule...

My question is on general retrofit of medium to small asian milling machines: Understanding that most machines not originally designed for CNC use leadscrews and seldom use any ballscrews, is there...