I have an old motorcycle which I would like to fit with a modern CDI ignition. The ignition would be of the type typically fitted to dirt bikes and which require a high voltage AC source. They have a permanent magnet alternator with a separate high voltage stator for the ignition in addition to a 12V stator. My bike has a permanent magnet alternator which contains two 6V stators wired in parallel. I am wondering if it is possible to use a transformer to provide a ~300V source from the stock alternator to power the CDI. I could dedicate one of the stators to the ignition... Comment too long. Click here to view the full text.
>>926732 It's a 1965 Ducati 250. I am hoping to avoid rewinding the stator because it would require a lot of turns to get the voltage I need and as the old magnets aren't as powerful as they were 50 years ago, I can't be sure what voltage I will be getting out of it. With the transformer approach I can afford to experiment. The trigger problem is easy to solve, the high voltage supply is not.
I'm painting several wooden boxes with oil paints and I've been trying to figure out what the best kind of varnish is to use. I want a glossy look like the wooden cutouts in the pic I posted, how do I achieve this look?
I often use wipe on gloss polyurethane, take your time and apply a ton of coats (like 10 or so) lightly sand with 600-800 grit every 3 coats just to remove any high spots or dust nibs. That alone will get you a nice gloss, but for the best gloss let the poly cure for at least a week, then come back with some automotive wax and a buffer. That sumbitch will blind you when the light hits.
Hi diynosaurs, i'm actually working on a project that requires the use of a stepper motor, in particular i need to control the speed of the motor using an arduino uno. I've read that stepper motors need a dedicated driver to work and i was wondering if i need a particular driver or just the cheapest-random one. I do already have the motor and can provide the name if needed (i didn't find specifications of the exact model though). I was looking forward the easy stepper motor driver, but i'm not sure if that allows me to control the speed by the code on the... Comment too long. Click here to view the full text.
>>926607 >Hi diynosaurs, i'm actually working on a project that requires the use of a stepper motor, in particular i need to control the speed of the motor using an arduino uno. I've read that stepper motors need a dedicated driver to work and i was wondering if i need a particular driver or just the cheapest-random one. You do need a "stepper" motor driver, or a motor driver board that can operate a stepper motor. There are also "brushless" (or BLDC) motors and DC... Comment too long. Click here to view the full text.
I almost never wear hearing or eye protection. I just hate them since they muddle my senses and make me feel less safe, even though I know better. I just can't be bothered.
The only exception is when I'm grinding metal or when the operation I'm performing is throwing dust or other material directly into the face. Then the safety glasses go on.
When ripping wood I don't use a push stick unless the cut requires my hand get within two or so inches of the blade. Never had an incident. I took those worthless safety pawls off the table saw, because they obstruct my view of the cut being made. I leave the riving knife on, because I know that actually is important for preventing kickback, and it is no inconvenience to leave it be.
I utilize the step above the one indicated to be the last safe step if need be.
What shop safety commandments do you break on a regular basis?
>>926348 I always wear safety glasses, used to it from my army days. I've got a nice pair of ICE crossbows that I don't even realize I'm wearing anymore. Came home from the shop the other night and forgot I was wearing them. The wife's staring at me across the dinner table like I have a dick on my forehead.
Ear defenders... Well, I wear over the ear headphones and jam out while I work, that counts I guess lol my bearings fucked from the military anyway.
Push sticks... I'm in that same boat with OP, pretty much don't use them until I need to push near the blade.
Steam softens the staves to a point of usability. Once they're soft you bend them into shape and let them cool & dry so they hold. Then you can use fine nails and banding to hold the furniture together.
>>925556 there was a chair thread soem days ago but it's already archived so I'll ask here.
i am in the progress of replacing the gas cylinder/spring on my comfy office chair.
does anyone know what exactly the difference in shape is for in these things? picture related, I am talking about the thinner lower part. in some parts the lower thin part is longer, in soem it's not there at all.
Nothing that is going to get released is going to be heaps better then the ones out now. we hit a slow period in development of new microprocessors. Until the next big breakthrough in production they are all the same quality pretty much.
I recently applied for two apprenticeships, one as a fitter and the other as an electrician. My Dad said that if I got the electrical trade once I was skilled that I should look to pursue more training in elevator repair or security system installation/maintenance because they had a lot of money.
I didn't get the electrical apprenticeship but I did get offered the one as a fitter. I want to know are there any kind of "specialized" fields in fitting like in electrical work that I will (later in my career) be able to benefit from moving into?
Installation teams for my family's security systems company are primarily low grade electricians. Because it is really just pulling wire and plugging in. The difficult part is neat and efficient installation which is where the electricians line pulling experience comes in.
Any programming is particularly basic and if there are unusual faults then one of the few actual technicians will break themselves away from their desk and do some field work for once if the system is not remotely accessible.
But... Comment too long. Click here to view the full text.
Can we have this one? Tools that doesn't cost as much as your kidneys on the black market, even tho they are good for hobby/day to day usage.
For example a good Fluke Multimeter costs 200$+, while you can get a so-so one from China for 50$.
Pic related - my multimeter bought from ebay for 40$ Good, fast reaction time on diode check, "hold" button just holds the current value on the screen (kind of pointless imo). Doesn't have min-max which kind of suck. Test leads are rated for CAT III for 1000V (20A)/CAT IV 600V (20A) and look like... Comment too long. Click here to view the full text.
It's y first time here. My father and I are renovating our upper and lower porches in accordance to the preservation board of our city. We're not that well off, so he has to do it himself, and I try to help, but I don't know a lick about this.
From what he tells me though, the people are trying to run a game on him. For instance, though he got permission to continue with the project, the board was 'displeased' because he didn't come to them for the okay, despite the fact that we would lose the house if he didn't, and if they said no.
Like... Comment too long. Click here to view the full text.
>the board was displeased sounds more like they were displeased because if you did it incorrectly you would have wasted your time, and if you present your project to them beforehand you will know if what you're doing is acceptable. So I would be displeased too, if I was on that committee given I have a conscious and wouldn't want someone to lose their house for a frivolous reason.
>>926622 Thank you for your the comment. It's my understanding that they were displeased because, though he got the go ahead, he didn't meet with them with plans and such. Which I can understand.
I certainly hope they're as like-minded as you, and not the, admittedly, callous higher ups I picture them to be in my head. Though I have to reiterate, I am not the one doing this, my father is. I'm just trying to collect information to help.
>>926617 >dealing with city officials and the like
Building officials are usually power hungry twats. I am an engineer, so they have no real power over me other than delaying my client's project. None the less, bend over backwards for them and make them feel important.
I work as a supplier of marine electronics and because of this i often end up with stuff that probably has some neat diy applications. I'm not interested in using it as intended, mostly because i don't have a boat. Some of the stuff even work just fine, they're just worn or no longer meets todays regulations. So, any suggestions on what to do with VHF radios, radars, echosounders, and all sorts of antennae?
Hey /diy, first time poster here, but do lurk often. Hope you can help/advise on pic related.
I hae torn-down an old, defunct Epson Stylus SX230 for parts (motors, COG 1 1/4" LCD) for use in other projects.
I would like to use just the scanner as I will be satisfying my printing needs with a cheaper to run monochrome laserjet (not multi-function) hence desire to make useable the scanner. It was in full working order before teardown and has not been tinkered with at all. The flat ribbon cable is the only I/O and has 4 pins, BLANK, 15 pins arrangement.
How... Comment too long. Click here to view the full text.
All trademarks and copyrights on this page are owned by their respective parties. Images uploaded are the responsibility of the Poster. Comments are owned by the Poster.
This is a 4chan archive - all of the content originated from them. If you need IP information for a Poster - you need to contact them. This website shows only archived content.
If a post contains personal/copyrighted/illegal content you can contact me at email@example.com with that post and thread number and it will be removed as soon as possible.