Make a clear cylinder?

I'm wanting to bend a piece of acrylic into a thin but long cylinder. Can anyone give me any tips on how to do this? Thanks :-)

Topic by Triblade101 10 years ago  |  last reply 10 years ago


Hydraulic Cylinder Compressor? Answered

Ok, so I need to make a compressor that reaches 4500 psi.  I live in a farm town and my dad has a tractor so I wondered if I took two identical hydraulic cylinders and filled one with what I was compressing, and the other I powered with the tractors hydraulic system, if I would be able to achieve high pressure and fill tanks, assuming the hydraulic pump and cylinders are rated for that pressure.  Or could I just use a hydraulic compressor.

Question by jj.inc 8 years ago  |  last reply 7 years ago


Looking for a sphere inscribed in a cylinder

I am looking for a solid, one-piece sphere inscribed in a cylinder. The cylinder needs to be semi-transparent. Something similar to this: http://www.crockhamhill.kent.sch.uk/teachers/History/AncientGreece/images/sphere_in_cylinder.jpg Any ideas on where I could get one, or who could create one?

Topic by spherecylinder 8 years ago  |  last reply 8 years ago


i have a large copper cylinder with copper pipes and fittings any ideas for a piece of sculpture?

Its two foot tall, it has already built inlets and outlets, also a copper screw top to allow heating element to be placed inside, i also have copper fittings

Question by patrick murray 9 years ago  |  last reply 9 years ago


Where can I buy a clamp that would do this

I have a thick horizontal cylinder. I want to clamp a thinner vertical cylinder so it's sitting on top of it. This must be a very strong attachment that could handle a lot of weight and wouldn't slip off, but it must also be easily removed. Any ideas? Thanks!

Topic by ablesinstruct 6 years ago  |  last reply 6 years ago


Recoil simulation! Gas single action air cylinder or extended solenoid? Answered

OK, final question for this project! You guys on the other answer topics gave been a great help even if I haven't had time to reply yet! One half sorted onto the other. I have a tube with a 25mm diameter about 20cm long ( I could put a smaller pipe inside this and extend it at least another 20cm) I need recoil. Not super realistic, but as heavy as possible. Budget is about 40 pounds. (Money) My current ideas include either a 350g metal 20mm diameter by 10cm bar and a spring, being moved by a 250g solenoid with 10mm stroke, I would replace the metal solenoid bar (thing inside soldnoid) with a longer one, this will encrease stroke. Even if this did work there would be little recoil, though it is cheap and very easy. Power is a very short 12v pulse. The alternative idea is the pneumatic one, I don't really want to do this asi need to conserve my air supply for the other part of this project. It's effectively a solenoid valve (12v pulse) and an air cylinder (homemade to conserve price) which is attached to that weight aforementioned. Power is 6bar. This should provide significant recoil but is expensive, difficult and wastes large amounts of gas. is there a better way? Is there an electronic way that could avoid gas but still have heavy recoil and use my 12v pulse? Even if it is out of my budget, it'd be great to know. This is to simulate a backwards recoil as heavy as possible. Final question (unless something goes wrong) I promise!  Thanks.

Question by Digital Flame 3 years ago  |  last reply 3 years ago


Hey i have been looking around instructables and internet for a cool idea to use small empty gas cylinder. Answered

Does somebody know anything cool to do with them See the link for a picture.http://www.tooled-up.com/ProdImage/GAZC206BP.jpgthanks

Question by sallost 9 years ago  |  last reply 9 years ago


Tardis Console

I'm wanting to bend a piece of acrylic into a cylinder. About 2' dia and 4' high. Any suggestions?

Topic by writer55 6 years ago  |  last reply 6 years ago


Stirling engine displacer design? Answered

I am designing a gamma Stirling engine (this type) and I am unsure how long the piston should be and how long its stroke length should be the specs for the cylinder and piston pipes are below. The pipe for the cylinder is stainless steel. Wall thickness: 1.56mm Outer diameter: 31.7mm Inner diameter: 28.6 Length: 200mm (can be cut smaller) (Stainless steel cap will be welded to one end, the other end where the shaft comes out will be plugged with this nylon/graphite stuff) The pipe for the displacer piston is aluminium pipe.  Wall thickness: 1mm Outer diameter: 27.88mm Inner diameter: 25.88mm Length: ? (Two aluminium plugs will be used to seal its ends) How long should the piston, cylinder and stroke lengths be based on the specs?

Question by The MadScientist 7 years ago  |  last reply 7 years ago


Solar Hot Water Preheater Idea?

Hi everyone, I'm new, from the UK, I will shortly be moving into a static caravan/mobile home on family land for a few years to save up, so with money saving being the aim, I'd like to run this little project by you all.  I'm thinking about making a solar collector and placing it on the roof of the home, as large as I can afford (caravan is 12 wide) and feeding that into a heat exchanger inside an old 47kg LPG gas cylinder (I have access to several old cylinders and believe it can hold around 110 litres, so could even use 2?) and having the mains inlet at the bottom and outlet to the boiler at the top.  For the heat exchanger, I'm thinking cut both ends off and drop a coil through from top to bottom and weld back up but i'm open to suggestions. I want to a heat exchanger instead of having the mains water go round the solar collector, as it can get cold in the UK at night, even in the summer and I dont want it freezing in the winter (i'll have enough worry of water pipes freezing anyway), so will use some form of copper friendly anti-freeze. I'll need a pump for this, as the collector will be on the roof, above the cylinder, so thinking to run it on a light sensor, but how complicated would a thermal switch be, so when the temp in the collector ir warmer then the cylinder be to make? If anyone knows of a  place for the circuits (or of the shelf product), I can see if it's something i'm competent enough to take on.  One last thing, Would having the cylinder painter black and left in sunlight be a good idea. Would it get hot enough to cause problems with the water mains pressure?  Look forward to your feedback and advise.  Tuns

Question by tuns 7 years ago  |  last reply 7 years ago


To vent an empty CNG cylinder? Answered

Does anyone knows how to vent an empty CNG cylinder? I unscrew the inlet valve and fill it full of water, but the person who will cut it says that this is not enough. It seems excessive to me, but... Thanks in advance!

Question by rimar2000 7 years ago  |  last reply 7 years ago


Revolver with swing out cylinder

I was looking at guns on Wikipedia and saw a pic of a revolver with a swing out cylinder. I went straight to work and made the swing out cylinder, but I couldn't figure out how to make the rest of the gun and keep the cylinder from moving all over the place. I don't have a digital camera, but I can tell you how I made it. 1. Take a blue rod 2. Attach a dark grey connector on 1 end of the rod 3. Put 1 grey cylinder spacer on the rod, followed by 2 blue ring spacers 4. Put the blue rod through the hole of another dark grey connector 5. Put 2 more blue ring spacers on, followed by 1 more grey cylinder spacer and attach 1 more dark grey connector to the other end of the blue rod 6. Take 1 white rod and snap on 2 white snowflake connectors, then snap the rod into the dark grey connector in the middle of the blue rod (the dark grey connector should be in the middle of the 2 white snowflake connectors) 7. Take another white rod and attach a dark grey connector on 1 end of it, then slide the white rod through the hole of 1 of the dark grey connectors on the blue rod, then slide on another grey cylinder spacer and attach 1 yellow connector on top of the white rod 8. Do #7, but on the other side of the blue rod 9. For the handle, I took 3 green connectors and snapped them on to 1 white rod, then put 3 small green rods on the bottom of each green connector (Look below to find a little bit better explanation) 10. Take 3 yellow connectors and attach them to a white rod, then connect all 3 to the 3 green rods mentioned in #9 11. Take 3 more green connectors and attach them to a white rod and add 3 small green rods to the top of the 3 green connectors and attach them to the 3 yellow connectors in #10 BETTER EXPLANATION 1. A green connector has 4 places for 4 rods (I will call them teeth) 2. From left to right, it goes empty tooth, white rod, empty tooth, small green rod 3. A yellow connector has 5 teeth for 5 rods 4. From left to right, it goes small green rod (from the green connectors mentioned above), white rod, empty tooth, empty tooth, small green rod 5. Same as #2, but it goes small green rod (from the yellow connectors mentioned above), white rod, empty tooth, empty tooth If anyone knows what I'm talking about and makes these pieces & has a digital camera, please take pics and show me so ppl can see what I'm talking about. Also, if anyone finds out how to make the rest of the gun, please tell me and show me how you made it (but please don't take credit for my design of the cylinder & handle. If you mod/have to mod any of these 2 parts to make the rest of the gun, don't forget to credit me for the original design of the 2 parts). Also, if anyone does make the gun, please post an instructable for it. I would love to see the gun that I almost got to make. So please tell me where to go to get the instructable I you decide to post it. Also, the gun doesn't have to shoot anything. Thanks to everyone that contributes.

Topic by Knexfan 11 years ago  |  last reply 11 years ago


second cylinder stopped compressing

I have a Ford Mustang 2005 second cylinder stopped compressing how much it will cost

Question by NaviS3 3 years ago  |  last reply 3 years ago


Looking inexpensive pnuematic cylinders

I am looking for a source for inexpensive pneumatic cylinders and related goodies, preferably in the Sacramento area. I am not above doing a little demolition work to get the parts ... in fact I rather enjoy it!!  All sizes can be used.

Topic by scotwho 5 years ago  |  last reply 5 years ago


Edison Wax Cylinder Recordings

I'm not sure this is the correct category, but I didn't see one specifically for audio endeavors! I know there were early recordings on wax, and later vinyl records, but I wondered if anyone ever went back and made cylinders from vinyl and tried recording on them. Does anyone know where I can find out more about this? I'm be interested in trying to make higher definition recording cylinders for some fun :)

Topic by kakashibatosi 4 years ago  |  last reply 4 years ago


Hot water cylinder question! Answered

Ok, so you have a hot water cylinder full of hot water... no matter in which way it is heated, how does it stay hot all the way until all the hot water is used up when you having a shower or whatever?... which seems like a full tank, piping hot until the end. If you are replacing the hot water with cold water as it is being used would this not just regulate the water temp and make it colder straight away? If you have a hot cup of tea, just add a little cold water... why does this not happen with a hot water cylinder? Thanks

Question by howgoodisit 5 years ago  |  last reply 5 years ago


GoPro Scuba Cylinder Mount

Hi there, I'm new here. I've recently found an entry-level 3D online modelling software, Tinkercad and have been Tinkering ever since. I'm into scuba diving and I've long wanted to design a GoPro mount for the cylinder to give a 3rd person view of me while I'm swimming about enjoying life underwater. (Think a less-sexy Lara Croft!) I wanted to run it past you guys to see what you think. I've attached 2 screenshots, because as you can see, the mount I've designed is collapsible, to save space in my GoPro bag. I've done the maths (Pythag) so each side is perfectly lengthed to create a right-angled triangle, with the hypotaneuse (long edge) is facing down my body, towards my feet, so that the camera view won't be obstructed. I've used a Pythag triple, so the arms measure 3", 4", 5". This was done for 2 reasons: a) It was easier to desine using these measurements and b) I don't want it sticking too far up from my cylinder so that it doesn't catch on wildlife/coral/divers. As this is my first GoPro mount that I've designed, I've had to go on deimensions I've found online for the actual hinges. I've settled on approx 3mm for each prong as well as the gap in between. I have actually shaved off .25mm from the middle prong of the 3-pronged-hinge, and left the 2-pronged-hinge at 3mm for the gap and prongs. I'm going to get the pieces 3D-printed by a local service I've found on 3DHubs.com, either in ABS plastic or in resin, though I'll probably go for ABS as it seems to be a bit more hard-wearing, even if it's not so detailed. In terms of mounting it to the tank, I will use 2 headstraps, with the over-the-top strap removed from each one and glue the plastic bits of each of them together, at the correct length of course. I would join them using a seperate piece of plastic and either a hot glue gun, superglue or even some sort of epoxy, whatever lasts longest in prolonged exposure to seawater. I would probably place it nearer the top of the tank, near to where the strap of the BCD jacket goes round it. Does anybody have any advice for me in terms of the design from a functional point of view as well as from whether they think it would actually get a good shot on the camera please? I look forward to your feedback, good or bad!

Topic by JackIsted 2 years ago  |  last reply 2 years ago


GoPro Scuba Cylinder Mount

Hi there, I'm new here. I've recently found an entry-level 3D online modelling software, Tinkercad and have been Tinkering ever since. I'm into scuba diving and I've long wanted to design a GoPro mount for the cylinder to give a 3rd person view of me while I'm swimming about enjoying life underwater. (Think a less-sexy Lara Croft!) I wanted to run it past you guys to see what you think. I've attached 2 screenshots, because as you can see, the mount I've designed is collapsible, to save space in my GoPro bag. I've done the maths (Pythag) so each side is perfectly lengthed to create a right-angled triangle, with the hypotaneuse (long edge) is facing down my body, towards my feet, so that the camera view won't be obstructed. I've used a Pythag triple, so the arms measure 3", 4", 5". This was done for 2 reasons: a) It was easier to desine using these measurements and b) I don't want it sticking too far up from my cylinder so that it doesn't catch on wildlife/coral/divers. As this is my first GoPro mount that I've designed, I've had to go on deimensions I've found online for the actual hinges. I've settled on approx 3mm for each prong as well as the gap in between. I have actually shaved off .25mm from the middle prong of the 3-pronged-hinge, and left the 2-pronged-hinge at 3mm for the gap and prongs. I'm going to get the pieces 3D-printed by a local service I've found on 3DHubs.com, either in ABS plastic or in resin, though I'll probably go for ABS as it seems to be a bit more hard-wearing, even if it's not so detailed. In terms of mounting it to the tank, I will use 2 headstraps, with the over-the-top strap removed from each one and glue the plastic bits of each of them together, at the correct length of course. I would join them using a seperate piece of plastic and either a hot glue gun, superglue or even some sort of epoxy, whatever lasts longest in prolonged exposure to seawater. I would probably place it nearer the top of the tank, near to where the strap of the BCD jacket goes round it. Does anybody have any advice for me in terms of the design from a functional point of view as well as from whether they think it would actually get a good shot on the camera please? I look forward to your feedback, good or bad!

Topic by JackIsted 2 years ago  |  last reply 2 years ago


Building a taller lift for my chair

So, I own an  adjustable bar-height stool with min-height of 24" and max-height of 33" and I wonder if it is possible to either   1) retrofit the existing hydraulic lift so I can get 10" more in height  2) Or completely build from scratch a similar hydraulic lift as the one I currently have installed except the new one would provide a max height of about 45"   I would appreciate any tips in accomplishing either of the above listed options please.

Topic by rumpells 3 years ago  |  last reply 3 years ago


Machining inside cylinder vs machining thread?

We are working with my kids on CAD project - precisely on a simple pressure valve for DIY confetti launcher. Yesterday question had occured: what is cheaper and easier for hand turner (alternatively cnc machine): to machine a nipple and  then turn a thread on a cylinder or to machine nipple inside cylinder? How much bigger is cost of one of these options?  I prefer turning inside cylinder (no potential problem with sealing), anyway I'm asking this question to more experienced people.   PS: Size is showed in mm. We consider using metric thread.

Question by mdt2170m 6 years ago  |  last reply 6 years ago


Can I use a regular digital thermometer as a cylinder heat temp gauge?

Hey guys, I want to make a cheap cylinder head temperature gauge for my 150cc scooter. I have owned one before which worked well but it was rather expensive. I'm more interested in being able to detect a temperature spike and avoid a blown motor than determining an acurate temperature. The last gauge I owned used a probe with a ring on the end that acted as a washer between the spark plug and the head. If I buy one of these probes:  http://www.ebay.com/itm/Thermocouple-CHT-Sensor-Probe-Cylinder-Head-Temperature-14mm-/120861470119?pt=LH_DefaultDomain_2 And a digital thermometer with a probe like this: http://www.ebay.com/itm/Digital-Blue-LCD-Temperature-Meter-50-150-Probe-/230650228821?pt=LH_DefaultDomain_0&hash;=item35b3d33055 Could I just splice the wires together and be away laughing? I'd need to find out what the temp range of my engine is first.....my last 2-stroke 150cc ran at about 275F and melted at 400F, 4-strokes should run cooler right? Any thoughts would be appreciated :)

Question by tig5 7 years ago  |  last reply 7 years ago


What to Do With an Old Gas Cylinder

I have an old gas tank/cylinder without a valve or anything. Any ideas on what I could do with it?

Topic by Ora 11 years ago  |  last reply 8 years ago


Can I get a 20 pound CO2 cylinder filled with Helium? Answered

I recently got a 20 pound CO2 cylinder and was wondering if I would be able to get it filled with helium gas.

Question by workinprogress37 8 years ago  |  last reply 8 years ago


Interview: the man who makes the smallest engines.

I lone this guy's work - tiny, working, hand made models of IC engines - but I love his attitude even more...

Topic by Kiteman 6 years ago  |  last reply 6 years ago


If i have a 72 cubic inch CYLINDER that is 11 inches long, what is diamater of this cylinder?

If i have a 72 cubic inch CYLINDER that is 11 inches long, what is diamater of this cylinder?

Question by trf 9 years ago  |  last reply 9 years ago


BBC plays steampunk band's wax record with fuse wire and mint tin.

Steampunk band The men That Will Not be Blamed for Nothing have released a new single. On wax. The BBC heard about this, and built a machine to play it.  For techies, their build is not exactly... good. The cylinder was recorded by Poppy Records with a mixture of digital computer techno-wizardry and a machine cobbled together from a video recorder and old arcade games. Played on a properly-built machine, the recordings are surprisingly pleasant to listen to.

Topic by Kiteman 8 years ago  |  last reply 8 years ago


Using sprinkler valves for pneumatic cannons

Many people have used sprinkler valves for a dump valve to release the air. I have made a launcher that used one of these and when I hook the air up it releases it all before I can hit the switch causing a pre-mature fire. Does anyone have these problems. I think it can be fixed by adding the air in slowly rather than hooking up a quick connect coupling like I am now.  Any help would be appreciated. 

Topic by rocketman20 6 years ago  |  last reply 5 years ago


Which pneumatic cylinder model will be best for robot fight and push 30KG easily??

I wanna a poweful pneumatic cylinder which can push fastly 30-50KG easily. I want this cylinder for robot fight (But not big pneumatic cylinder max. weight of pneumatic cylinder should be 1.5KG. cause robot has weight limit. i wanna buy this cylinder form online shop ( Like ebay,amazon,hobby king etc. good online shop). But i haven't good knowledge about pneumatic cylinder. So if anyone have good knowledge about pneumatic cylinder then please recommend me a good one for robot fight with all equipment ( solinoid bulb, fitings). Give me the proper goof online shop link where i can buy this pneumatic cylinder. Thanks.

Question by Takrim 1 year ago  |  last reply 1 year ago


How to make cylinders move in a serpintine pattern

I am creating a sculpture that has a very complicated movement that I am struggling with.  I have a shadow box containing 2 rows of two foot long one inch diameter cylinders. I want them to "weave" back and forth in the shadow box. I thought about cutting out a track from a 1/4" plate and mounting it on the top and bottom of the box. Than placing a motor  inside one of the cylinders connected to a shaft and a gear that would ride in the track. I like this idea but, I do not know how to overcome the problem of where the track crosses itself. (the track would look like multiple figure 8's) Any ideas on this or better ideas? Thanks for your help!

Topic by cramnager 9 years ago  |  last reply 9 years ago


How do I construct a Pneumatic Cylinder?

I would like to know if anyone has made a Pneumatic cylinder out of an old Coleman Lantern green gas tank. Or What about making out of PVC? I'm making a halloween prop that it using a door closure as a piston. It needs about 60 to 70 pounds of pressure per use and will be fired about 10 times. It uses up about 5 pds of pressure on each firing. Any ideas on making a cheap regulator for this would be helpful too. The prop will be outside in the woods for a haunted trail. So having it self contained would be nice. I didn't want to run an air hose 150' to make it operate. Thanks.

Question by ijtw69 9 years ago  |  last reply 8 years ago


What is the best type of ball milling media?

I'm trying to decide what kind of grinding media to use for crushing powders in my ball mill. Is it better to have different sizes? Also, is it true cylinders work better that spheres? My two main choices are either brass balls or alumina cylinders, which one should I pick?

Question by Ke-Bob 8 years ago  |  last reply 8 years ago


Experimental engine Answered

Would connecting like 2 or more single cylender horizontal engines like briggs and strattons together flywheel to shaft run as like a 2 cylender in line engine? or has anyone done it even? example : if      [0-     represents an engine with the [ being the flywheel, the 0 the crankcase/block and the - a shaft then this is my idea [0-[0-[0-  and so on like a two cylinder would be [0-[0- would this work? what would i have to do to get this to work?

Question by chris24f22 7 years ago  |  last reply 7 years ago


Will hardened lead antimony balls wear out quickly in a ball mill?

I've read that regular soft lead balls can wear out extremely quickly and contaminate mixtures in a ball mill, but what about these hardened lead antimony balls? I don't really fancy the idea of breathing in a lot of lead dust after a couple hours of milling. http://www.pyrocreations.com/inc/sdetail/11961 Would it be a good idea to get the lead balls from this website (found under "ball mills and media") for my ball mill (for making potentially explosive chemicals)? I've considered getting brass balls, but they are unbelievably expensive. I've also considered getting a brass bar and cutting it, but that's not cheap either and I don't know where to get a brass bar. Plus, apparently brass wears down quickly too, so it seems like a lot of trouble when I can just get lead balls, as long as they don't wear out too badly.

Question by Ke-Bob 8 years ago  |  last reply 8 years ago


What equipment is needed to fill an appropriate cylinder with oxygen generated by the electrolysis of water?

Update: I need someone that has experience with gas cylinders to point out potential dangers that would be present by filling this way, We've already discussed water vapor and oil potentially making its way inside. That doesn't sound good to me so I need certainty that its safe or those can be eliminated or reduced to safe levels. Right now I would really like to know what I need so I can refill tanks myself. I'm guessing its a special adapter or replacement valve, but I don't know where to start Original: Would it be possible to fill an appropriate oxygen tank with the right adapters/compression system with the oxygen generated by electrolyzing water and what kind of equipment would be needed? I know for propane you can buy adapters and refill/transfer from one to another, but obviously this is completely different, and I don't know anything about oxygen valves/adapters or compression systems. Yes I know this could potentially be very dangerous and also have no interest in collecting the hydrogen. Just to clarify we are talking about commercial grade tanks, not a 2 liter soda bottle. Also, if possible how high of purity would be expected using optimal electrodes and electrolytes to prevent corrosion and impurities. Any information at all would be very helpful.

Question by NathanE31 2 years ago  |  last reply 2 years ago


Can I detatch the cylinder from a typewriter so that the bell and sliding mechanism still properly function?

I have an idea for modding a nerf gun involving attatching a typewriter cylinder to it so that either firing or cocking the gun causes the cylinder to "Ding".  Is it possible to safely detatch the cylinder of an old typewriter so that the sliding mechanism and bell still function correctly?  Also, could someone please provide me with a chart of the individual mechanisms within an antique typewriter? Thank you Instructables.

Question by Spiderdog3000 9 years ago


I have COPD and need O2 at home.How to lift cylinders up using the outside wall.House is reinforced concrete Answered

The delivery guy says he needs help to get my cylinders up my stairs, which is a very fair comment.I live in the Philippines where a block a nd tackle are unknown!I guess an electric motor with a cable is the answer.I am not a technical sort so help me please, thank you                 the picture shows the layout but where the cylinders go is to the right.I will remove 2 balustrades for cylinders.

Question by robin yates 5 years ago  |  last reply 5 years ago


How to find the pressure capasity of a hollow metal cylinder

I am tying to figure out how much air pressure a hollow metal cylinder could hold before it starts becoming dangerous. It will be for an air cannon I want to build so the cylinder itself would need to have an inside diameter of 4ft and about 6ft long.

Topic by Sedgewick17 11 years ago  |  last reply 11 years ago


What would cause every other cylinder not to fire on a big block chevy?

In my truck I have a 366 big block chevy motor and cylinders 2, 3, 5 and 8 are not getting spark and the firing order is 1,8,4,3,6,5,7,2. So I am not getting spark to every other cylinder I have an H.E.I distributor. I am thinking it could be the ignition module but am not sure any help is appreciated.

Question by vince 09 4 years ago  |  last reply 4 years ago



Printing/Painting onto a cylinder (specifically, a drum stick)

Sooooo... I'm planning on making a very nice pretty etc etc pair of drum sticks for a friend who is a serious drummer and among other things I'd like to do to make them individual is getting a design on them - be this by staining, printing, stamping or whatever (I'm not sure how it's done professionally and I feel paint would quickly come off... :/) So, dearest Instructablers, does anyone have any guidance as to how to do this? Cheers!

Topic by macmaniac 8 years ago  |  last reply 8 years ago


Problems with my CHT (cylinder head temp) gauge.

I have a k-type thermometer mounted on my 12v scooter with a k-type thermocouple running under the spark plug. Things were working ok until I hooked the setup on to the bike itself, powering from the ignition. Now the gauge just reads 0.00C or will rise up to temp and then quickly go back to 0.00. Anyone got any ideas? Is it a voltage/power problem? I've checked all connections. Unit seemed to be working fine on a 12v aux battery I had in the house.Any thoughts appreciated.

Question by tig5 6 years ago  |  last reply 6 years ago


What is a fun thing to do with a busted water heater? Answered

I have an old water heater that does not work, and is no longer connected to anything. It is the kind that heats it and stores it in an insulated tank. Are there any fun things I can do with this big metal cylinder?

Question by ToastaG 9 years ago  |  last reply 9 years ago


After puncture in the freezer, the cylinder on the back underneath water tray is hot

I was deicing freezer in the refrigerator and accidentally puncture. Gas went out for a few seconds. The refrigerator has topped working. When I cleaned the back and trowed away accumulating water, the cylinder beneath is still hot. Any possibilities or repair?

Question by Sharing Fun with WiSH & EmmaS 1 year ago  |  last reply 1 year ago


Changing brakes on an '06/'07ford freestar, how do we push the cylinder back in? Answered

We bent a cast iron pipe clamp trying to push the brake cylinder back in, it didn't budge.

Question by The Ideanator 9 years ago  |  last reply 9 years ago


About metal hydride?

When I fill metal hydride in tank or cylinder to storage Hydrogen gas Do I must refilling agin metal hydride to the tank or cylinder to storage Hydrogen?

Question by Hamzaaite 1 year ago  |  last reply 1 year ago


I want to use HCNG? Can I use PVC pipes to supply HCNG from cylinder to engine at a presssure of 5 bar ?

I have a cylinder in which HCNG or hythane ((it is a mixture of hydrogen and CNG)) is stored at 150 bar pressure and I want to use it in an engine? I want to take the hythane out from the cylinder at a pressure of 5 bar? For reducing pressure I am using Pressure regulator? Can I use PVC pipes to supply HCNG from cylinder to engine at a presssure of 5 bar?

Question by bhupesh kumar yadav 3 years ago  |  last reply 3 years ago


Would installing a manual master cylinder in a 1979 Datsun 280ZX be a good idea?

I need to put in a new braking system in a Datsun 280ZX that I am converting to electric. Since there is no vacuum from an engine, I was considering using some sort of vacuum pump but I came upon using a manual master cylinder instead, which is good because it does not require extra power besides my leg, but since my vehicle initially came with power brakes, I am not sure if it will be compatible. I will most likely have to replace all the brake lines, because they are fairly old and there is a good chance that they've been damaged. So this gives me the chance to replace them with suitable lines for either type of master cylinder. Does anyone have any experience with this sort of thing? Any input would be greatly appreciated!

Question by ANDY! 5 years ago  |  last reply 5 years ago


A question for experienced mechanics

I  know someone who has a newer model of the Dodge Ram with a Hemi V8.  It has a special gas-saving feature which turns off 4 of the cylinders when it is at highway speeds.  I was wondering if this was a practical idea to do to an old 350 small block.  I know that you could just unplug the spark plugs to 4 cylinders.  Of course, you would have to do something to release the pressure also. (I was thinking of removing the entire spark plug.) I am not very experienced in auto mechanics so I was wondering if anyone here could figure this out.  PS : This option of shutting down cylinders was also available in older Cadillacs I beleive it was called the 4-6-8, which shut down either 2 or 4 cylinders.  This engine however, was known for it's problems, which is why I was wondering about doing this.

Question by jules15 8 years ago  |  last reply 8 years ago


Where could one acquire a small O2 gas cylinder? Answered

Where could I go to get small O2 tanks without much expense for individuals without health issues or special licenses of any sort? I DO NOT need anything of a specfic grade as this is for combustion. I wont be breathing this (at least not on purpose) I want is the small medical sized bottles

Question by The Ideanator 9 years ago  |  last reply 9 years ago


Joining two small pieces of metal with a metal cylinder tube

Hi, this is my first post, I hope that someone will be able to help me :) I am trying to join two motors normally found in alarm clocks, I wish to join them with a metal cylinder with about a cm bigger diameter than antenna's found on radios. How would I go about joining each motor to each end, I cannot get welding and don't know if it would apply even to such small electronics, soldering seems impossible as it won't join, any advice is much appreciated, thanks P.S The end product would look like the base of a RC car, but without the wheels thanks.

Topic by thewhiz012 6 years ago  |  last reply 6 years ago