Products of Marv Klotz

OSBORNE 1.0 Marv Klotz 

Education \ Science

Guy Lautard documents a quick and easy iterative method to accurately center round stock in the milling machine - the so-called "Osborne Maneuver". I wrote a short program to examine how quickly this procedure converges. This is a very useful trick - read the .TXT file for a description.. Freeware download of OSBORNE 1.0, size 31.46 Kb.


MANDREL 1.0 Marv Klotz 

Education \ Science

If you wind your own springs, you know that sizing the mandrel for winding is generally done by guesswork. Kozo Hiraoka, writing in HSM, has produced a formula for calculating the required mandrel size that should help to get you close. I coded his formula to make it easier to use.. Freeware download of MANDREL 1.0, size 31.46 Kb.

DPLATE 1.0 Marv Klotz 

Education \ Mathmatics

How does one make an accurate dividing plate when one doesn't have a dividing head? It's a proverbial chicken-egg problem. This describes a straightforward way of doing it with nothing more than a lathe and a bit of mathematics which the program will sort out for you.. Freeware download of DPLATE 1.0, size 41.94 Kb.

CONROD 1.0 Marv Klotz 

Education \ Science

Tom Roach in South Africa needed a program to compute connecting rod clearance relative to cylinder bottom. Between the two of us we arrived at a useful description of the problem and the equations to solve it. Tom's application was IC engines but the calculation is equally useful for steam engines - either cylinder clearance or crosshead guide. Freeware download of CONROD 1.0, size 83.89 Kb.

BOLTLOAD 1.0 Marv Klotz 

Education \ Science

Another great submission by Richard Williams in the UK. This program is used to calculate the loads applied to individual bolts within a group of bolts when subject to a load applied to a rigid structure.. Freeware download of BOLTLOAD 1.0, size 272.63 Kb.

SPRINGK 1.0 Marv Klotz 

Education \ Miscellaneous

Dave Baker, in the UK, has an interesting formula for computing the spring constant of a spring. He graciously allowed me to program it and put it up here.. Freeware download of SPRINGK 1.0, size 31.46 Kb.

CSEG 1.0 Marv Klotz 

Education \ Mathmatics

Solves circular segments. You enter any two items you know and it finds whatever is not known.. Freeware download of CSEG 1.0, size 31.46 Kb.

STEAMHP 1.0 Marv Klotz 

Education \ Science

Don Nichols wrote a handy program to calculate the approximate horsepower produced by a steam engine. I rewrote his program to make the input more explicit. Don has reviewed the program and given his permission to publish it here.. Freeware download of STEAMHP 1.0, size 31.46 Kb.

OFFKEY 1.0 Marv Klotz 

Education \ Teaching Tools

While the program name accurately describes my singing, this has nothing to do with music. If you have a cam keyed to a shaft and wish to change its phasing relative to the shaft by a few degrees, one way to do it is to make an OFFset KEY (hence the name). This program will provide the data you need to build such a key. Thanks to Ronnie Shultz for. Freeware download of OFFKEY 1.0, size 73.40 Kb.

DIVHEAD 1.0 Marv Klotz 

Education \ Science

John Rothen wanted software for computing turns and holes on a dividing head with a non-standard worm gear ratio. I wrote a program that can be customized via a data file for ANY dividing head configuration. Also includes a program to determine which hole plates you'll need to generate all the divisions up to some input number.. Freeware download of DIVHEAD 1.0, size 94.37 Kb.

DALLOW 1.0 Marv Klotz 

Education \ Mathmatics

A friend wanted to drill a 0.5" blind hole 1" deep but didn't know how much to allow for the tapered end of the drill. Assuming you know the included angle of the drill tip (typically 2*59 = 118 deg) this will tell you how much to allow for the cylindrical part of the hole to be as long as needed.. Freeware download of DALLOW 1.0, size 31.46 Kb.

KNURL 1.0 Marv Klotz 

Education \ Science

To obtain perfect knurls on the first try, the circumference of the work should be an integral multiple of the tooth spacing on the knurl wheel. This little tool takes all the work out of making the required calculations.. Freeware download of KNURL 1.0, size 31.46 Kb.

KEYWAY 1.0 Marv Klotz 

Education \ Science

Another excellent B. Vaughan contribution to take all the pain out of calculating depths of cut for keyways and keyseats so they're correctly centered on the shaft-hub intersection line.. Freeware download of KEYWAY 1.0, size 94.37 Kb.

GEARATIO 1.0 Marv Klotz 

Education \ Science

If you have a set of gears (e.g., change gears from a lathe), you may want to use them to establish a ratio for some other application. This program automates the process of deciding which gears to use to obtain a desired ratio.. Freeware download of GEARATIO 1.0, size 20.97 Kb.

OGIVE 1.0 Marv Klotz 

Education \ Science

A typical rocket nose cone shape is described as an 'ogive'. This program, an outgrowth of PROFILE, will allow you to incrementally turn such shapes on a lathe.. Freeware download of OGIVE 1.0, size 41.94 Kb.