Ghostchips Posted March 6, 2017 Posted March 6, 2017 51 minutes ago, SOHC said: I think there are some pics in this thread already? anyway I built it a few years ago You have a video of that expanding pistons don't you? 1 Quote
Nominal Posted March 6, 2017 Posted March 6, 2017 That's cool. I saw one stored in a workshop in Seaview a few years back, but I don't think it was for sale. Quote
Popular Post 73crownwagon Posted March 9, 2017 Popular Post Posted March 9, 2017 Friends old man built this lil railway In his back yard in whanganui 17 Quote
Popular Post EpochNZ Posted March 10, 2017 Popular Post Posted March 10, 2017 Just got this out of the workshop Friday..... 22 Quote
adamant Posted March 21, 2017 Posted March 21, 2017 I've been working on Biltong dryers for the past couple of years. I love Biltong, just hate paying for it, $10 for 100grams, and most is pretty average for what you pay. First effort involved a glass door bar fridge, a couple of computer fans, a light and a controller unit. Wired the light to come on until the box got up to temp, for biltong you need air to be pushed past the meat to cure it over time, and a consistent temp between 22-24 degrees is the go, once it reached the 24 degrees it shut the light off. Fans run all the time. This unit was great, although I couldn’t get enough in it to do a batch big enough to cater for my mates and me 3 Quote
Popular Post adamant Posted March 21, 2017 Popular Post Posted March 21, 2017 So time for Mk2. Managed to get my hands on a commercial under bench stainless steel fridge with a buggered compressor. Stripped all the shit out I didn’t need, designed a box up to take 2 heat bulbs and a fan to push air past the bulbs into the fridge. Managed to get the shape laser cut and folded by some good buggers at a sheet metal shop, Got a mate to weld it up, as my welds aren’t up for public consumption yet. Testing Wired up the new controller, cut a hole in to take the hot air delivery device and bingo she’s cranking away now. First batch is in now. Beers in a couple of days will be infinitely better. 16 Quote
Seedy Al Posted March 24, 2017 Posted March 24, 2017 I too love biltong One day I shall construct 1 Quote
Popular Post mjrstar Posted March 24, 2017 Popular Post Posted March 24, 2017 Pretty lame compared to some of the sweet projects, but I though i'd whip up a dimple die for making some rigid holes. @mjrstar Please rehost here 11 Quote
flyingbrick Posted March 24, 2017 Posted March 24, 2017 Not lame at all. I drew up some simple dies on Friday for the CNC to pop out on Monday.. simple dies are something I have wanted for bloody YEARS. I see you made yours with 45s, I have done mine with a 7mm radius... Hopefully the outcome is as good 1 Quote
mjrstar Posted March 24, 2017 Posted March 24, 2017 Angle is ~35 degrees according to shithouse lathe. The secret to success appears to be the position of the female die, it's easy to have it not concentric with the hole which leaves the back lip not perfectly parallel to the material. Suggest the back of the hole is marked with the diameter of the die to help with keeping it central. Here are some speed holes in my pos racecivic. Also thinking of a way to flare some holes in panel steel that I can't get to the back side of. 1 Quote
tortron Posted March 25, 2017 Posted March 25, 2017 Blind holes I would take your die and cut the sides off to give a rectangle, then shift it around the hole to do the whole lot Or just a profile welded to some vicegrip jaws and move it around the edge 1 Quote
Popular Post NickJ Posted March 25, 2017 Popular Post Posted March 25, 2017 On 18 September 2016 at 21:36, NickJ said: Other than Russian engineering i'm a keen long range shooter, a big part of this is reloading ammunition due to the accuracy gained from tailoring for the rifle, as brass work hardens with every shot, annealing is required every few cycles to keep everything ticking along nicely. Traditionally a gas cooker was used to heat the brass just before red hot, but as the process must be repeatable case to case it is arguable whether doing this by hand is beneficial. (There is a bit more detail than this, better suited to other forums) The solution to me was induction annealing, using a micro processor to control the time removes the human element and is repeatable even with days between sessions. Using an induction coil off ali express I experimented with coil size until I found a diameter that worked with brass, then coded an arduino to take care of timing, a few components later on a block of ply and I had a crude electron powered annealer. Only thing to add is a servo to drop the case out the bottom at the end of the cycle ready for the next Just like a new one Made some changes to the annealer over the last few months, started with a solid state relay so I could run a 48V powersupply with the added benefit of not needing the FETs for switching, improved the cooling system and made minor tweaks to the coding. Running off a sheet of ply wasn't too nice so I planned to make a timber box to tidy the whole lot up, while looking for supplies, a red toolbox caught my eye for a much fairer price, after drilling a few holes and some offcuts of acrylic, there we go, almost pro looking! There are a few wires missing from this shot, and I still need to organise the dropout chute in the front for finished cases, oh and add speed holes so the cooling fan can actually draw air! 18 Quote
Popular Post to4garret Posted March 25, 2017 Popular Post Posted March 25, 2017 I often spend time building stuff, i find it quite relaxing and gets me out side. I started building shit years ago with the odd subwoofer enclosure to full boot installs, now i own a home so its cabinets, fences and my most recent - an Activity Table for the kids. I went a bit overboard and made this waaaaay more complicated than it could have been. I started in SketchUp where i went through a few design iterations and eventually settled on this; I then tested how it would go together by printing a prototype with a 3D Printer. I was glad i did this as there were a few things that needed changing - mainly i added hidden legs to support the table more. All the sizes & angles came from the SketchUp model and turned out pretty well. I did need to use a little bog because my cutting tolerances were not that precise. you can see the hidden leg supports if you look closely. I let the kids chose the colours for the table, was pretty fun as i just sat them in front of the computer and tried different colours in SketchUp until they were happy. Then off to bunnings for a few test pots. I think it turned out really well, kids love it and use it every day - its bloody heavy though and i dont think i will build something that retarded again. 33 Quote
Popular Post flyingbrick Posted March 31, 2017 Popular Post Posted March 31, 2017 Not as epic as the kids table up there but I got epic satisfaction from this little project. We have a tiny home and it's important to free up pockets of space and remove clutter when possible (I'm not good at this) Greg popped in the other day and suggested I put TV on wall..It's been on the to-do list for ages. Measured wall and tv angles Had bracket laser cut Bend along dotted lines Draw corner of lounge and TV on table and use to get angles for steel (ends are not 45s) and weld Paint and screw onto wall Now just gotta add a power point and white cable so they exit walls higher. @flyingbrick Please rehost images on OS 17 Quote
Popular Post JR Posted May 27, 2017 Popular Post Posted May 27, 2017 So, I bought the wee fella a second hand slot car set off trademe. He was pretty excited when it arrived. I remember from back in my day that the worst part about slot car sets was setting them up and then after having a hoon mum yelling at me to tidy it away. So we built a table for it. There is no way I can give up all of that shed space for a slot car set so I thought I would make it hoist up to the ceiling.... Off to Mitre 10 I went to get some pulleys, 12 to be exact.... $38 each they wanted, bugger that, Alliexpress to the rescure. Less than $2 U.S. each including shipping. Iv got to put a boat trailer winch on the wall to raise and lower and shes done. 29 Quote
tortron Posted May 27, 2017 Posted May 27, 2017 Can't wait to see a full scale race track outer and car park diorama setup 5 Quote
johnnyfive Posted May 28, 2017 Posted May 28, 2017 Ah man that's awesome, exactly what I've been putting off building for my shed Quote
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