Search results

Series vs parallel, KenH has explained it nicely, I just add my version here: you can also think of it as pumping water through a hose. At a certain pressure (voltage) you pump a certain amount/volume( Amperage) through a certain diameter (resistance) hose. If you wire the elements in...

I made a test blade from very thin stock 80crv2 ended up with 1,4mm = 0,055 inch (if my conversion is right) its the bottom one in the pic. I did some testing, nothing overly scientific - just what came to mind and finally broke it to see what it can take. The blade was hardned the normal &...

Title says it All, I want your opinion on the grain size of a test piece. Steel is 80crv2 - this is a new steel for me so some testing is in order. I hardened a test piece and broke a section off after each step. Top one is after 1x normalize Middle one after 2x Normalizing Botom one after...

There has been so much discussion on the usefulness/or not of bainitic hardened blades - no need to start this again. I prefer my blades fully martensitic and if I need more toughness/flex I differentially temper the spine. But I found this interesting article on the comparison of various...

A windshield wiper motor would work. Especially a larger one from a truck would do fine I think. But you will need to supply it with 12V, some run on 24V also.

Here is something I made some time ago: A Stonewashing tumbler. I was experimenting with different finishes and wanted to try some stonewashing. As I did not want to spend much on it I quickly slapped something together with Materials found in the shop. I guess it could be done much nicer than...

I agree, could be either one of the above mentioned things. If a coupon does not go over 50RC even in water quench something is definitely wrong. Problem could be in the RC testing or its a temperature Problem. Where did you place it in the oven? Flat on the bottom? On a Rack? Did you at some...

Hi Shane, When I want to check my TC I usually use a piece of fine silver, either a piece of wire or clipping from a sheet will do. It has to be fine silver - sterling will not do!. Put it in the oven near tip of TC ,raise temp incrementally and watch when it melts. Fine silver has a melting...

I have worked quite a bit with ebony, Its a nice wood but the dust makes quite a mess. As for cracking - yes it likes to do this especially when it gets too hot. When resawing handle slabs make sure you dont overheat it . The cracks can be very fine and may not be obvious on the first glance...

Another vote for AEBL! I like the ease of sharpening and as said above, its really easy to sharpen to a razor sharpness. It may not stay at medium sharpness as long as e.g ATS34-the gap is noticeable but its not THAT big if you get the HT right. Most factory knives from Sandvik steels are...

Found a vid that shows the process, its in german but pics are still interesting to watch. At min 7:30-8:00 you see how thin the blades are ground, he checks the edge flex on his thumbring. The blades are convex ground hence the wobbling motion of the board the blade is clamped to. After...

Yes, Stress relieve is advised. I had good sucess with hanging long thin blades vertically in the HT oven. This minimizes warp by handling the heated blades. They become quite floppy when hot. Also you have a short window directly after the quench for straightening. I clamp the still warm...

Thanks a lot Mr.Cashen for answering my Questions! Since I dont have acess to liquid nitrogen and a simple cold treatment is enough to achieve hat I want I will stay with it. The reason for the 3x cryo is now also clear. As said, the results I get are satisfying, the blades are fine and hold up...

I have a Question concerning Cryo/deep Freeze Treatment. When I use Stainless I work with Sandvik Steels like AEB-L, 13C26, 12C27. I do a Dry Ice/Acetone treatment immediately after HT. According to the Sandvik HT manual there is no holding time at cryo temperature necessary, you only...

Hello Frank, If you want to do it yourself, take a look at the Pantograph I built for doing some Inlay work here: http://www.britishblades.com/forums/showthread.php?171654-Dremel-Pantograph-for-Inlay-work I admit, its not lettering, but it does any shape you want depending on the template...

Hi, I use the VSM XK870 (36,60,120,240) now for more than a a year and I am overall satisfied with the performance. The norton/trizact are a bit longer lasting on some grits but here they are almost twice the price (depending on the grit) of the VSM. And I like to use a local product :)

Well, as said I am not from the US and I dont know how the electrical system/safety codes there exactly works. If the whole house is only able to use 26A max its definitely a bad idea. Over here the wife is cooking in the kitchen while the daughter uses the 2500W hairdrier in the bathroom and...

The budgetcasting element is fine if you dont want to make your own but I think it will be struggling to heat an oven of your intended size up to temp. The simplest control setup consists of a PID an SSR and a Thermocouple but I would advise to use a relais and a door switch in conjunction...

Hi Brian, how much amps can you pull from your system? I am from a 220V country so I do not know the exact specs for the US electrical system. I found a reference for the use of 110V and 26A max. Is this correct? I am a metric guy so all my calculations are made metric. As an example: With...

Hello Jason, Nice conversion! the paragon 14d is listed with 1200 Watts so you will need at least that. I design my ovens with a power requirement of 0,8W per cm² of chamber surfacewith good success, this would make for a 1600W element with your oven size. There must be something wrong...