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Hi I am building a four cyl four cycle boxer type engine. My question is will 1045 steel work for the crank, I generally use 4140 but was given a length of 1045. Thanks for any input you can offer. Terry

Hi, I have an ER32 MK4 collet chuck and a couple of collets for it to use on my lathe, my mill is R8 if I buy an R8 chuck are the collets interchangeable as long as they are ER32? Thanks Terry

Hi, I am trying to cut three small gears, I have in the past made a gear hob which worked very well, however they were brass gears, I am trying to cut a small module 0.7 12 tooth gear in steel. After making the hob, I heated until it lost its magnetism, cooled in spindle oil, put in small oven...

Hi, I have ordered a 0.7 metric gear hob, it has a 12mm inside measurement, I would like to use it on my mill to cut the gears, can anyone tell me the method of mounting the hob so as to put it into the quill (r8) ? I have made hobs before with a stub end to mount into an R8 end mill holder...

Hi, I am building a cam for my engine, the lobes are set screwed to the shaft, I drilled and tapped the lobes with a 5-40 tap. A 5-40 bolt screws in fine but the set screws I have do not, appears they are coarser thread. My question is are there different pitches of threads on set screws ? Terry

:wall:Hi I posted the other day and got lots of help but still cannot produce a cam lobe. I have attached a clip from plans. Here is what I am doing with poor results. First I center the rotary table, then center the cam blank on the table. I then move the x axis left 5.66mm then move the y axis...

Hi, I am attempting to cut cam lobes using the method by Randall Cox. I have the mill, turntable, boring tool etc. and understand the principle. What I don't seem to get is the setting on the boring tool. The write up in the mag says the radius of the cam flank determines the radius you set on...

Hi, I have been searching the web about a fwd rev switch for my mill. It is a G1005Z, I have a reversing drum switch and a diagram for it, it is a Kedu ZH-HC-3. Every diagram I find shows a different junction box including the one in the manual. The one on my machine has three jumpers that I...

Hi, I need to cut some gears in mod 0.7 size. I have in the past made a hobb for imperial gears with some success. Is there a post on info needed, such as depth of cut, spacing between teeth etc. I need one 12t, one 24t and one30t? Any help or direction would be appreciated. Thanks Terry

Hi, I seem to have a lot of trouble machining small multi cyl cranks. Is it possible or feasible to cut the excess material away then use a type of tool post grinder to finish the journals? Your thoughts? Terry

Hi, I am looking for the formula that determines how far the carriage is moved when cutting the hob rings. I know the module no. and depth of cut also have the od of the gear blank and number of teeth. I have done this before with imperial sizes but cannot remember how far the carriage needs to...

Hi, I purchased a new bigger mill last week, it came with a large fly cutter with several carbide cutters brazed on, I decided to try it out on a piece of unknown steel 4" by 3". It did cut it using shallow cuts however while cutting there was a shower of sparks with or without coolant. Can...

Hi, I have just taken delivery of a new mill, it has a table 7 1/2 by 23 and will be used for hobbies, my question is what size I should buy in a rotary table, 6" or 5"? Any input would be appreciated. Thank you Terry

Hi, I have built the steam powered donkey by William Harris, I am at the stage of checking operation using air pressure, ( up to 100psi ) when I apply air most of it blows out the cyl exhausts, I have checked the timing and operation of the slide valves and they seem to be as per the plans, the...

Hi, can anyone help me with timing procedure on the hoglet, I have an rcexl twin ignition, I have spark and fuel but cannot make it run. Do you identify tdc on one piston, advance 38 deg and set first hall sensor to fire at this position? Doing that the second magnet is no where near a position...

Hi, looking for plans for linisher, there are two listed in downloads, but you cannot download anything. I am sure I looked at these plans a while back. Am I missing something besides my mind? Terry

Hi, with the help of several posts on this and other forums, I have put together a non fogging mister for my lathe. I have one regulator going to the resevoir with 5psi and a second one going to the mixer with 12psi, the resevoir is made of pvc pipe with a clear plastic tube up the outside for a...

Hi, I have put together a non fogging lathe mister system, the coolant I am using is one that calls for dilution in water. however I find after sitting overnite the coolant separates, oily on top, white colored below. Is this normal or do I need to go to a different coolant? Any suggestions...

Hi, what do you guys in the know use to accurately measure small holes ( under .250 ). I have a cheap set of full ball mics, but judging by how poorly they are made, I dont really trust them. I have made up a small tool suggested by someone on the forum consisting of a taper with a locking outer...

Hi, I am building a 4cyl engine, in the plans they call for phosphor bronze .005 to be used for con rod bearing shells. I have spent several hours on the net trying to source the material. The only one I found was a knife supply in the US, the 5"x7" sheet was only about seven dollars however...