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Recent content by billzweig
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Best way to bend plexiglass for VMC tool carousel cover ?
I would use a polycarbonate (lexan) that can be bent and formed just like metal sheet. -
Dangers of chemical storage plastic containers
Most of my work is R&D in medical and nuclear medicine field. In both cases any product or process developed and once approved cannot deviate from the submitted and approved description. It is not unusual to take ten or even twenty years to get FDA approval while the work on the process or... -
DIY Pickeling Solution for Nickel Plating Steel in small quantities
The nickel plating solution can be electroless plating or electroplating. In both case the part needs to be totally clean and free from any grease or oil, but electroless is usually more forgiving than electroplating, especially when using the standard Watts electroplating solution that... -
Dangers of chemical storage plastic containers
All my chemicals are stored in cabinets and separated according to type; acid with acids, etc. As for keeping the products a long time - yes, I would not keep a a container of milk for years, but expensive materials that are seldom used and in small quantities are stored for decades. Palladium... -
Dangers of chemical storage plastic containers
I do quite a lot of chemical process like electroforming, chemical etching and polishing, electroplating in wide range of metals, vapour deposition and so on. In fact I do have a small chemistry lab next to the shop where I do the work and store the chemicals - more than 200 bottles and jars of... -
What are your favorite "go-to" planes
I am not a woodworker, but like to work in wood. Most of the time I use the Stanley bailey No 3 corrugated, the Millers Falls No 85 and the small E.C.E block plane.- billzweig
- Post #14
- Forum: Woodworking and Woodworking Machinery
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Switching shop lights to LED
I do not remember how expensive those were, but definitely cheap quality. And yes, the rating on many tools and appliances is ridiculous...but maybe somehow in the peruse of "green" vacuum cleaner those guys did find a way to get 4.5 HP output of 1000W input :). Still, the general understanding...- billzweig
- Post #50
- Forum: Shop Management and Owner Issues
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Switching shop lights to LED
I have no experience with LED fluorescent lights - still using 40W T12 48" 6500K and quite happy with the light and the long life of the tubes (my relatively small shop using only 48 tubes). However a few years ago I bough a number of 50w led flood lights, some for the outside of the shop and a...- billzweig
- Post #47
- Forum: Shop Management and Owner Issues
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Current state of R&D machining
This is a grossly inaccurate statement. I have worked all my life - and still do - in R&D in medical, optical, nuclear, mechanical, electro-mechanical etc. fields, designing, making and bringing to production hundreds of prototypes of every kind and size. In the last decade in my shop only three... -
Help fabricating a grinding machine for artist (point carver for jade)
The machine is basically a spindle mounted on a stand. Dumore tool post grinders (many models) are common and rather inexpensive in used condition (just take a look on Ebay or similar). Best for your application can be one with interchangeable spindle. I have one and made a collet adapter for it...- billzweig
- Post #5
- Forum: Abrasive Machining
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heavy ordnance field repair---1917
I have watched the clip again and thought how lucky are those workers compared to other guys rotting and massacred in the trenches...- billzweig
- Post #3
- Forum: Antique Machinery and History
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Where in the air system to put auxiliary air tank?
As Bill D suggested, putting the tank at the end of the run can provide more stable air pressure. Depending on the length and diameter (and the number of elbows)in the air line the pressure at the end can drop significantly under high volume flow. If there is an air dryer after the compressor... -
heavy ordnance field repair---1917
The gun loaded on the train is the the 210mm Morser.- billzweig
- Post #2
- Forum: Antique Machinery and History
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Toyota KC
Nissan was making army trucks in WW2 as well.- billzweig
- Post #5
- Forum: Antique Machinery and History
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Dealing with internal stresses, need some advice
While a lot depends on the type of the tube, annealing can make a big difference. Under somehow similar circumstances I heat the steel in a muffle furnace to 600C and then leave in the furnace to cool overnight.