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Right now I have some Torx head screw need to measure, but i don't have Torx standard on hand, does anybody knows that where i can get that standards? The second question is i want to know what is the differece between Torx and Torx Plus. Thanks

I have got contact with micro 100 and ordered 10 cutter for trial, thanks for your information.

Yes, it is accomplished by using phase shifting components (such as capacitor)on the primary side,since the load is 3 phase motor,the current can be balanced only on the full load situation.I have got some information on that in a transformer design book. Thanks

I face a problem right now:to make a 1/4-16 ACME internal thread,material for the part is stainless steel, Minor diameter is only about 0.1875-0.1925, I have tried both drill & tap and cutting method, but can not get good result. Are there any other method to make it? or maybe there are some...

I have a case on hand: to design a transformer to realize the function that change power from single phase to triple phase, i have no idea on how to figure it out. I have seen some product on-line which is a static converter, but i am not sure if it's a transformer or some other solutions.

I don't know how to draw a involute under Acad 2000,anybody can give me some advice on this? many thanks

I want to draw a involue line in the Acad 2000,anybody can give me some advice on this? I can't do that,many thanks.

By changing the G command from G92 to G76 and adding a 3 degrees shim under the insert, i have got perfect result. The thread can be overlayed perfectly with the 50 times template under the optical comparator. The system we are using is FANUC-0T series G92 thread cutting cycle means the cutter...

The spec is ACME 1/4-16-2G (Lead=0.0625"=1.5875mm),machine time constant 30ms,i have tried from 4 to 10mm air cutting space,200-800RPM spindle speed,still first tooth is a little wider,totally 7 teeth,i have tried only machine 3 teeth or 4,5 teeth (so i can get more air cutting...

When i cut the ACME thread on CNC Lathe,i face a problem: the first tooth is a little wider than the others (about 7 teeth totally), as i know that when we use the CNC lathe to cut the thread, there will be a short incorrect threaded length at the beginning and the end,the lengh is depends on...

I wonder if there is die for ACME thread 1/4-16, anybody can give me some information? Thanks!