loading
5Instructables8,108Views322CommentsEnumclaw, WashingtonJoined August 22nd, 2011

Tell us about yourself!

Complete Your Profile

Achievements

100+ Comments Earned a bronze medal
  • clazman commented on stefangougherty's instructable Giant Straw Tetrahedron Cluster2 weeks ago
    Giant Straw Tetrahedron Cluster

    Yes the straws are in "almost pure" compressive loading, i.e. the load in the straws is on and along the axis of the straw.If we had a better "purer" connection where the straws join Then we could allow for axial tensile forces as well. The tetrahedron, based on the geometrically pure, loading pure, triangle would then be complete.

    View Instructable »
  • clazman commented on yuwentwiggychen's instructable How to French Polish3 weeks ago
    How to French Polish

    Interesting how the term "pound cut" came about.Once again in establishing the term it was decided. In years past, the gallon or 128 fluid ounces was "chosen" as the base line. Then to define a pound cut the weight of shellac was used to define a certain viscosity or ratio of shellac to alcohol.Why the simple weight ratio wasn't used rather than using the "gallon" as a baseline intrigues me.i.e. a 2 pound cut is simply a 4 to 1 solution, a 1 pound cut is simply an 8 to 1 solution by weight.Anyway I like your article. Unfortunately I have never used shellac in my woodworking. Perhaps I should delve into this finish.Thanks for presenting your work and techniques with this finishing material and the nuances associated with its use and storage..

    View Instructable »
  • clazman commented on RobinJ66's instructable How to Re-Engineer Paper Back into Wood1 month ago
    How to Re-Engineer Paper Back into Wood

    window glass is not tempered nor is it safety glass, so caution is a must.

    most window glass is not tempered nor is it safety glass, so caution is a must

    View Instructable »
  • clazman commented on diycreators's instructable DIY Indoor Outdoor concrete lamp 21 month ago
    DIY Indoor Outdoor concrete lamp 2

    Very nice. I like your process too.I would prefer exposed aggregate thoughOh, I voted for you!!

    View Instructable »
  • clazman commented on mrstan's instructable Plastic Repairs (Gas Tank Example)1 month ago
    Plastic Repairs (Gas Tank Example)

    emphatically no! This repair scenario is used to repair thermoplastic material. The material can be remelted. Your fender is most likely a thermal (chemical) set material. It is created in a process quite similar to the well known epoxy process. Here, two components are mixed together and a chemical "curing" process occurs. This procedure is used where operating temperatures are "seen" that would melt a thermoplastic material. "Bakelite" is an excellent example.

    It'sOK to melt plastic. It's OK to use a soldering iron (just use a controller toensure the tip doesn't reach the “burning” temp of the plastic).Let us digress and consider the operation of plastic injection molding. That isan efficient and rapid procedure to create plastic components. The plastic istaken to its melting temperature from a room temperature granular form in whatis known as a plastic extrusion process. As the plastic becomes molten it hasreached the nozzle, of what is called an extruder, and is then forced into awater cooled mold. It cools and solidifies there.In a repair situation we wish to do something similar.The writer is correct, that the plastic must not reach a temperature atwhich carbonizes it. However it can become molten, as I stated. That is a goods...see more »It'sOK to melt plastic. It's OK to use a soldering iron (just use a controller toensure the tip doesn't reach the “burning” temp of the plastic).Let us digress and consider the operation of plastic injection molding. That isan efficient and rapid procedure to create plastic components. The plastic istaken to its melting temperature from a room temperature granular form in whatis known as a plastic extrusion process. As the plastic becomes molten it hasreached the nozzle, of what is called an extruder, and is then forced into awater cooled mold. It cools and solidifies there.In a repair situation we wish to do something similar.The writer is correct, that the plastic must not reach a temperature atwhich carbonizes it. However it can become molten, as I stated. That is a goodsituation.In the writers situation, the since the back side of the repair cannot bereached so his procedure is a good one. However, I contest that the repair canstill be effected by heating the plastic to a molten condition and filling thevoid. Care must be taken that the molten plastic does not get out of controland “drool”.In cases where the “back side” of the repair can be reached metal can beused to back up the repair. While the metal is at room temperature it acts asthe water cooled mold does in the plastic injection process.On a completely different subject the person that wishes to repair a polymerfender as he calls it must use a different process. His material is NOT athermal plastic (polymer) but a thermal set plastic (polymer). The processdiscussed in this instructable is inappropriate to say the least.In this repair a process is needed whereby the repair materials are chemicalreaction cured. Take an epoxy for example. It is a chemical reaction material.There are repair systems for his application. The two part system can behand mixed and applied to the damaged area. The process can also, and moreefficiently processed, via a hand held gun and a “mixing tube” and then “injectedinto the repair area.My comments have been quite brief, but I hope they have been of some help tothose with such repairs in need.

    View Instructable »
  • clazman commented on eLVirus88's instructable Reclaimed Corner Desk2 months ago
    Reclaimed Corner Desk

    What do you mean its the only angle you need? You need a 90 degree angle too! ;-)

    View Instructable »
  • clazman commented on ssterman's instructable Hardwood CNC Scrabble Board2 months ago
    Hardwood CNC Scrabble Board

    Make a fixture to hold an individual tile and then put a small 10 degree chmf. (someone mentioned a 10 degree cutter) on the bottom edge of each tile to allow a little bit of misplacement for the less dexterous of us.

    Absolutelybeautiful!!!!!The ONLY complaint I have and it isn't really a complaint.I would make the tiles maybe twice as thick for easier picking by the less dexterousof us. ;-)

    Absolutelybeautiful!!!!!The ONLY complaint I have and it isn't really a complaint.I would make the tiles maybe twice as thick for easier picking by the less dexterous of us.When leaving the turntable unsecured I would also add some kind of registration (key) to locate the turntable (preferably circular).

    Engrave a recess and apply gold leaf. wow!Great suggestions from everyone.

    View Instructable »
  • clazman commented on ZackH19's instructable Industrial Style Wall Sconces2 months ago
    Industrial Style Wall Sconces

    You're the MAN!!A true artisan!

    View Instructable »
  • clazman completed the lesson Welcome to CNC in the class CNC Class2 months ago
  • clazman commented on mdeudon's instructable Low cost reliable & powerfull laser engraver3 months ago
    Low cost reliable & powerfull laser engraver

    Quite nice!Just wanted to mention what could be an issue with using such small diameter rods.With the small footprint of yours the issue will not be a show stopper.The issue is rod deflection.I used the much larger footprint of the one you referenced to calculate the "droop" of the rods due to their own weight and then the live load deflection.Given a span of 40 inches the 3/8" rods will sag 0.038 inches at the center of the 40 inch span due to their own weight.The sag will increase with the live load by 0.049 inches per lb of live load.Since your spans are much less the sag will be less.I could give the formulae for deflection but suffice it to say that the sag is a function of the cube of the span divided by diameter to the fourth.Suffice it to say, just increasing the ...see more »Quite nice!Just wanted to mention what could be an issue with using such small diameter rods.With the small footprint of yours the issue will not be a show stopper.The issue is rod deflection.I used the much larger footprint of the one you referenced to calculate the "droop" of the rods due to their own weight and then the live load deflection.Given a span of 40 inches the 3/8" rods will sag 0.038 inches at the center of the 40 inch span due to their own weight.The sag will increase with the live load by 0.049 inches per lb of live load.Since your spans are much less the sag will be less.I could give the formulae for deflection but suffice it to say that the sag is a function of the cube of the span divided by diameter to the fourth.Suffice it to say, just increasing the rod diameter from 3/8" (10mm) to 1/2" (12mm) would reduce the deflection by a factor of 3.

    View Instructable »
  • How to Make a Cool Dragonfly Sculpture From Scrap Steel

    You create people make me sick ;-)Your decision to use stainless was thoughtful. I read the comment about the carbon steel contaminating the stainless if not careful. I would like to see the result of this contamination. It might add some character to the stainless wings.I agree with the comment on possibly laser cutting the wings to create a lacy effect.Kudos to you!

    View Instructable »
  • clazman commented on educ8s's instructable Art Deco Weather Forecast Display3 months ago
    Art Deco Weather Forecast Display

    WOW!! Art Deco, Right down to the wood fiber plastic! That material really finishes this project.My fanatical nature for completeness only wishes you would have created screw bosses for mounting the boards and a mechanical key for the display.I would very much like to build this project, although with my additions ;-) Kudos to you!

    View Instructable »
  • clazman commented on The_Technocrat's instructable PCB ETCHING | TONER TRANSFER METHOD3 months ago
    PCB ETCHING | TONER TRANSFER METHOD

    why remove all of the unused copper?I remember boards where the ground pad (or unused copper) remained.This would reduce copper waste and reduce ferrous chloride waste.Yes, it would increase toner waste and acetone waste.IOS;)

    View Instructable »
  • clazman commented on thomasjarrett16's instructable The Ultimate PVC Quadcopter6 months ago
    The Ultimate PVC Quadcopter

    Whatcan I say? This is definitely not the ULTIMATE PVC QUADCOPTER!!You have so much wasted mass that is counterproductive in a machine that isto fly efficiently. Since the beginning of flight man has strived to keep themass to a minimum while developing flying machines.You have not followed that edict. I don’t want to declare all of yourmistakes. I would hope you and other commenters would take a very hard look atyour proclaimed ultimate design. First and foremost look at the stresses ineach and every component and any material that is experiencing zero stress mustbe removed. Yes, the tubing is a very weight to strength structure. Itmaximizes rigidity while minimizing weight. But you can still remove muchweight from these components.Another weight savings can be had by incorporati...see more »Whatcan I say? This is definitely not the ULTIMATE PVC QUADCOPTER!!You have so much wasted mass that is counterproductive in a machine that isto fly efficiently. Since the beginning of flight man has strived to keep themass to a minimum while developing flying machines.You have not followed that edict. I don’t want to declare all of yourmistakes. I would hope you and other commenters would take a very hard look atyour proclaimed ultimate design. First and foremost look at the stresses ineach and every component and any material that is experiencing zero stress mustbe removed. Yes, the tubing is a very weight to strength structure. Itmaximizes rigidity while minimizing weight. But you can still remove muchweight from these components.Another weight savings can be had by incorporating the structure that housesthe electronics in to the structure of the machine. If a stress analysis wasdone on all of these components you would find negligible stress. Granted, youwill say that they are possibly stressed in a crash situation. Yes they wouldbe. That is obvious. However in normal flight they had nothing to the strengthand rigidity of the machine.You will probably ask: How can one, one that has not the engineeringbackground, analyze stresses? Simply speaking stress is the result ofdeflecting a material.Bending your school ruler is a prime example. If you hold the ruler at eachend and apply torsion the ruler bends. Once the ruler starts bending thetorsion you applied can be replaced with just pushing force on each end of theruler. Now, study the various areas of the ruler. Where is it bending the most?Where is the curvature the greatest? In the middle, right? Where is bending theleast? At the ends, right.In the middle of the ruler bending is greatest. In the center the plastic,did I say this was a plastic ruler? In the center the plastic is beingstretched and compressed the most. Therefore, the plastic is being stressed themost in the center. We will not get into the compressive stresses at the ends.They are quite low.So since the bending stresses are highest in the center and approach zero atthe ends couldn’t material be removed at the ends? Yes, it could, in thisloading scenario. One caution we can remove material at the ends but we mustkeep in mind the compressive stress. We do not want that stress to get toohigh.That is what I mean by eliminating material that is experiencing negligible stress.This is how you can study your so-called Ultimate Quadcopter. Flex it, “load”it to see where the various components bend the least. That material could beremoved.Why go through this analysis, you ask. Why? To reduce weight. Why reduceweight. To reduce unnecessary power requirements. Why? To increase batterylife. Why. To increase flight time.Yes, Instructables is a great means of displaying ones creations. Many ofwhich are thought provoking. It should also be a platform for critiquing. Ameans for suggesting improvements on an invention. To broaden ones knowledge.I hope my comments have been and will be taken as constructive criticism. Iin no way want them to be taken as destructive.May your inventiveness continue.

    View Instructable »
  • clazman commented on Chris Torrence's instructable Built-in Shelves Between the Studs6 months ago
    Built-in Shelves Between the Studs

    Nice. Did that some 35 years ago. Used pine and finished it with Watco Medium Walnut and topped off with Watco natural and finally Watco wax. Wetsanded all coats using 400, except wax.

    View Instructable »
  • clazman commented on Moem's instructable Itch-B-Gone6 months ago
    Itch-B-Gone

    Now to find a dropper that produces 0.5 and 0.25 drops. They must be easy to locate.

    View Instructable »
  • Convert a Hobie Cat from Sail to Power (Cheap Pontoon Boat)

    Very very nice.I would rather use laminated wood beams for platform structure matching the wood pontoons. But to each his own.Still, your project is quite sanitary.

    View Instructable »
  • clazman commented on Drunken Woodworker's instructable Wooden Block Plane6 months ago
    Wooden Block Plane

    Steel alloys haven't changed much, so I think you meant O1 for oil quench. Then there is also A2 (air quench).Heat treatment is quite a process. Quite an art too!

    View Instructable »
  • Control Your Home Appliances Using Arduino And Relay

    I'd like to see a power ramp up routine for incandescent lights. The main failure for incandescent lights is the inrush of current at startup. This is more of a problem as the light ages. To reduce this current a ramp up of voltage over a one second interval needs to be implemented. To do this the the relay will need to be very rapidly turned on and off with increasing duty cycle over the one second. However, the mechanical relay will need to be replaced with a solid state relay. to handle the much faster cycling.jat

    View Instructable »
  • clazman commented on CedHon's instructable Collaborative PCB Intro7 months ago
    Collaborative PCB Intro

    Why does everyone remove all of the copper not needed for the circuit?Isn't hat hard (wasteful) on the etching solution?

    View Instructable »
  • clazman commented on VitG's instructable Kitchen Scraper as Never Seen Before8 months ago
    Kitchen Scraper as Never Seen Before

    You make me sick!! lolThis is absolutely genus or you were wide awake in math when studying parabolas and hyperbolas. The oblique truncation of a cone creates these two curves and you realized one practical application in the resulting slice.My hat is off to you! Even though I do not where one.

    View Instructable »
  • Fireproof Carbon Foam from Pyrolysed Bread

    Ifind this an interesting process, to say the least. I will need to do some research.I have always wondered about the manufacturing process carbon fiber and its tremendousstrength.In this process , eliminating oxygen, the “normal” oxidizer, is interesting.For example, in the stoichiometric combustion of a hydrocarbon only CO2and H2O are the products. All other products are the result ofincomplete combustion or impurities, nitrogen being one.In this process the result is quite different. CO2 and H2Odo not exist, save for oxygen existing in the bread making components.

    View Instructable »
  • clazman commented on seamster's instructable Build a wooden fence and gate8 months ago
    Build a wooden fence and gate

    wow, nice job! I love your thoughts in the design process.I only have a few thoughts.Why not make the gate frame another 1/4 inch smaller than the opening? The slats will cover the difference.I do not like the industries treatment process of 4x4 posts. I like what my father did to allow untreated posts. anchor 3x3x1/4 angle iron in the concrete and bolting the posts to them keeping them completely above ground. They have lasted many years. I am preparing to replace the fence and posts. A job which will be easier much with the angle iron in pace.

    View Instructable »
  • How to Make a Mug out of Scrap Hard Wood Flooring

    Nice idea! Great job.Your procedure for determining the interior angle of a polygon is interesting. There is a "cleaner" method: interior angle of polygon with "n" (number of sides is: 180*(n-2)/nHope that makes your life a little easier.Also, a lot of so called hard wood flooring is not solid but made up of veneers which are unsuited for this project.I have a nice procedure that will give a much stronger joint while resulting in less glue squeeze out.Step 1: Apply glue to both surfaces. Don't flood the surface as usual. Just apply a nice thin layer. Not too dry though.Step 2: Wait several minutes to give the let the glue time to be absorbed into the wood. Those areas where the glue is absorbed will be quite noticeable.Step 3: Apply a second film of glue to those are...see more »Nice idea! Great job.Your procedure for determining the interior angle of a polygon is interesting. There is a "cleaner" method: interior angle of polygon with "n" (number of sides is: 180*(n-2)/nHope that makes your life a little easier.Also, a lot of so called hard wood flooring is not solid but made up of veneers which are unsuited for this project.I have a nice procedure that will give a much stronger joint while resulting in less glue squeeze out.Step 1: Apply glue to both surfaces. Don't flood the surface as usual. Just apply a nice thin layer. Not too dry though.Step 2: Wait several minutes to give the let the glue time to be absorbed into the wood. Those areas where the glue is absorbed will be quite noticeable.Step 3: Apply a second film of glue to those areas where the glue was absorbed. You may want to apply a thin film of glue to the remaining surfaces to freshen up that glue.Step 4: Again wait several minutes. If no further glue has been absorbed the mating surfaces may be brought together.The results:You will find that the glue is quite tacky and less fluid. This characteristic will make it much easier it maintain align.Secondly, the joint will be much stronger in that the glue wood interface will be much greater.Thirdly, typical glue squeeze out will be reduced greatly having been absorbed into the wood resulting in the stronger joint mentioned earlier.Yes the type of glue and the porosity of the wood used in the joint plays a lot in this process. This, and the thoughtfullness of the woodworker will have a large impact weighing heavily in the result.One final comment. Taking this process to its limits I have created very strong butt joints (end grain to end grain).

    View Instructable »