Colin Lindsay Posted January 11, 2022 Report Share Posted January 11, 2022 These days it's probably a 30cm pump. Link to comment Share on other sites More sharing options...
ahebron Posted January 27, 2022 Report Share Posted January 27, 2022 I used my sand blaster cabinet for the first time in a long time recently to clean up the headlight bowls for my Vitesse. The frustrating thing with the small benchtop machines is the sand line doesn't always pick the sand from the bottom of the machine. I went to youtube and found a bloke who had set up a benchtop and portable sandblaster to work together. Basically he fed the cabinet sand from the portable pot so no sand started out in the cabinet. I went to my local Bunnings and into the plumbing fittings to get some galv fittings. I ended up with a 20mm female right angle, a 20mm x 32mm nipple, 20-15mm reducer and a lock nut. The photos should tell it all but I drilled a hole in the side of the cabinet next to the airline. I turned a press fit reduced for inside the 20mm nipple to fit the hose inside and used the bench vise to press these together. Poke the nipple through the hole and using a nylon spacer I turned wind on the 90 degree fitting with the reducer in the downward pointing section. Fit a length of clear 20mm hose over the 15mm reducer and this goes into the bucket of blasting media on the floor. Connect the old sand pickup hose to the pressfit reducer inside the cabinet. Turn on the compressor and vacuum to keep the dust down and we are blasting. After using it to blast a few items I made a reducer to go into the pickup end of the media hose but have yet to try it. So far the only draw back is I have to empty the media that has been used back into the bucket, I use an old baked bean tin. 2 Link to comment Share on other sites More sharing options...
Colin Lindsay Posted January 27, 2022 Report Share Posted January 27, 2022 Never thought of taking media from an outside source! I have the large cabinet with the pyramid base so it's a simple case of undoing the bottom hatch and it all drops out, and I just sieve the large debris out of it and refill. I'm always dropping small parts through the grille and having to fish for them. I was blasting for about an hour last night and all was working well but the medium is getting a tad dusty. Yours looks a lot cleaner and certainly sharper. Link to comment Share on other sites More sharing options...
ahebron Posted January 27, 2022 Report Share Posted January 27, 2022 Colin mine has a shallow pyramid base. The first cabinet I bought was too big but it had the bottom hatch. Last night I was thinking about adding either a hatch or a large screw cap to the bottom of my cabinet. As it lives on its own trolley I could make a hole in the base to drop the media into its bucket. Underneath the cabinet I have a small workshop vacuum, the media bucket and the cyclone dust seperator, these all get removed and plugged in when blasting. Improving the light and replacing the window are the next jobs. It is probably overdue a media replacement as it is getting very dusty and has been used sporadically for several years. 25kg is roughly NZ$50. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted January 27, 2022 Report Share Posted January 27, 2022 1 hour ago, ahebron said: It is probably overdue a media replacement as it is getting very dusty and has been used sporadically for several years. 25kg is roughly NZ$50. Every year almost without fail I went to the NEC, and bought a 25kg tub of Aluminium Oxide or else went home via Carlisle Machine Mart and got it there. For the past number of years I haven't been near either, so recently I was down to dust and had to buy mail order - cost me about £50 GBP once I added delivery. I can't find a local supply other than Industrial that will deliver an entire pallet of the stuff. I don't have a dust separator, I just use a hoover... Link to comment Share on other sites More sharing options...
Pete Lewis Posted January 28, 2022 Report Share Posted January 28, 2022 can you not use kiln dried sand ie as for block paving ???? pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted January 28, 2022 Report Share Posted January 28, 2022 My mates are always telling me to go down to the seaside early some morning and use the fine sand that the wind has blown across the car parks, into drifts against the kerbstones. Never tried that, but I've also been recommended Tesco Playpit Sand as being suitably fine and dry. Link to comment Share on other sites More sharing options...
Badwolf Posted January 28, 2022 Report Share Posted January 28, 2022 In the dark ages when we were sandblasting the bodywork of the Spitfire, we just collected the sand and sieved it through a fine metal kitchen sieve and ran a magnet wrapped in a plastic bag around to pick up the remaining bits of rust. Worked well and a very cheap fix. One bag of sharp sand did the lot. Link to comment Share on other sites More sharing options...
PeteH Posted January 28, 2022 Report Share Posted January 28, 2022 Not serious. But how about this? 👍😁 Pete 1 2 Link to comment Share on other sites More sharing options...
thescrapman Posted January 28, 2022 Report Share Posted January 28, 2022 Isn't using sand unsafe? Silicosis? The vacuum on my blast cabinet just sucks all the media out whilst it is airborne. 😞 Link to comment Share on other sites More sharing options...
PeteH Posted January 28, 2022 Report Share Posted January 28, 2022 12 minutes ago, thescrapman said: Isn't using sand unsafe? Silicosis? Just about any fine dust has a similar effect on the respiratory system. Hence I assume the need for PPE in many similar contexts. A good friend, now deceased, died from a similar condition after working with concrete all his life. Thousands Of Mine workers died from the "dust". not all where Cancers either. John likely has more insight than I on that one? Pete Link to comment Share on other sites More sharing options...
ahebron Posted January 28, 2022 Report Share Posted January 28, 2022 2 hours ago, PeteH said: Not serious. But how about this? 👍😁 Pete Where is the 3D printer file for that one! Link to comment Share on other sites More sharing options...
ahebron Posted January 29, 2022 Report Share Posted January 29, 2022 Today I further modified the media blaster cabinet. I decided to fit a drain to remove the used grit and worked out that I could use a screw cap of a 20 litre oil container but only the round drum not the cube. The reasoning behind this is the amount of flat plastic around the neck is greater on the round one which I trimmed round Mark out where I wanted to fit it drill a pilot hole and get the hydraulic hole punch out, it went wrong at this point as the pump was low on oil so I filled it and tried to bleed it which took along time and checking on the internet. I also managed to over pressure the ram which when unplugged spurted out oil. Any way I got the hole in and fitted the drain. Then on my trolley I used the largest hole saw I had to drill the base so I could get a hand up to undo the cap and drain the cabinet into the bucket. Hopefully the photos tell it all. Link to comment Share on other sites More sharing options...
Badwolf Posted January 29, 2022 Report Share Posted January 29, 2022 14 hours ago, thescrapman said: Isn't using sand unsafe? Silicosis? The vacuum on my blast cabinet just sucks all the media out whilst it is airborne. 😞 All those years ago PPE was for sissies (I was immortal in those days - weren't we all??). We know better these days, but back then you were lucky to wrap a hanky around your head as a mask. I remember an episode of Auf Wiedersehen Pet where Oz was demolishing a wall with a bandana across his face. Health and safety, how things have changed Link to comment Share on other sites More sharing options...
PeteH Posted January 30, 2022 Report Share Posted January 30, 2022 On 28/01/2022 at 20:44, ahebron said: Where is the 3D printer file for that one! I think there could be actually?. IF I find it I will post. Pete Link to comment Share on other sites More sharing options...
Ian Smith Posted February 28, 2022 Report Share Posted February 28, 2022 I used to make outfields for my bandsaw, and circular saw. The bandsaw had a capacity for 12 feet diameter, but that was a one-off job. Norm Abraham has an excellent series on YouTube, called New Yankee Workshop. It's not necessarily about cars; more the process side of things. Cheers, Ian. Link to comment Share on other sites More sharing options...
JohnD Posted February 28, 2022 Report Share Posted February 28, 2022 Translation required. A 12ft diameter circular saw would be a weapon of mass destruction. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted February 28, 2022 Report Share Posted February 28, 2022 Bandsaw! If I've read correctly it had a capacity for 12ft diameter ie the object it was cutting... You're right about the circular saw, Ukraine needs a few... Link to comment Share on other sites More sharing options...
Peter Truman Posted February 28, 2022 Report Share Posted February 28, 2022 would love to know how that circular saw got there? Fitting end to a Chinese truck! After Covid and China's attack on Australian goods and verbal attempt at bullying against Aus' the PRC is definitely on the nose here. Link to comment Share on other sites More sharing options...
Ian Smith Posted February 28, 2022 Report Share Posted February 28, 2022 To translate.... And, example. A free-standing bandsaw, with a working throat of 10 inches (250mm) The out-field stand was made from a sheet of ply, with 1-inch increments. running out at 90 degrees from the blade. The increments are formed by drilling a small pin hole at each increment. An example, perhaps, is to make a 36-inch circle. First, scribe the circle such that the job can pass through the throat of the bandsaw. Then, centre the job to be cut, and drill a small hole. Move the centre pin out to 18 inch, which is half the diameter of the 36-inch job. Ensure that the bandsaw has sufficient clearance to commence cutting. With the job centred on the pin, the job now follows around the scribed circle. I'm probably not describing this very well, but if you google 'cutting circles with a bandsaw, you should get a good idea. The 12-foot diameter was needed to prescribe a curve on a piece of wood, which needed to be quite accurate. Link to comment Share on other sites More sharing options...
PeteH Posted March 1, 2022 Report Share Posted March 1, 2022 I`ve seen a jigsaw used to cut curves using a length of twine and a Screw as the Pivot.? The brickie needed two identical curves to build a former for an arch, until the mortar set. Pete Link to comment Share on other sites More sharing options...
Ian Smith Posted March 1, 2022 Report Share Posted March 1, 2022 54 minutes ago, PeteH said: I`ve seen a jigsaw used to cut curves using a length of twine and a Screw as the Pivot.? The brickie needed two identical curves to build a former for an arch, until the mortar set. Pete Yes indeed. I haven't done that myself, but can understand how it'll work. Link to comment Share on other sites More sharing options...
ahebron Posted March 17, 2022 Report Share Posted March 17, 2022 Made a special tool today for the Vitesse though it could work for many other cars. Anyone know what it is for, apart from me. A clue, it is about the notch and the hole. The metal was a piece of scrap. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted March 18, 2022 Report Share Posted March 18, 2022 The notch and the hole point me towards spire clips - spire clip removal? Failing that, I would have guessed it's for fitting or removing chrome bezels on switches, but it's too long to fit round the others. Link to comment Share on other sites More sharing options...
JohnD Posted March 18, 2022 Report Share Posted March 18, 2022 Hmmmmmmmmmmmmmm! This thread is supposed to aid and inspire, not puzzle, but I'll play the game. The hole must be for access, a screw head? A pin? Not the pin in door handles, so is the edge to push something aside while you undo a fastener, the notch to clear something? My mental doodling isn't getting anywhere! But I guess it's a trim lever of some sort. John Link to comment Share on other sites More sharing options...
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