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Mi_Tasol

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  • Safe Handling & Decontamination Procedures for COVID-19

    Excellent article. There is a severe shortage of good information on this subject and your instructable is well detailed and easy to read and follow.Two comments however. Although many governments are saying 20 seconds with soap and water is enough the American Society of Microbiologists says 30 seconds is required for Influenza A, which, until now, was the most aggressive virus. For hand sanitizers they say four minutes of active hand rubbing is required with the best hand sanitizers (70-80% ethanol). They also tested hand sanitizers mixed with saline and observed far superior disinfection compared to the sanitizer on its own.See https://www.asm.org/Press-Releases/2019/September-1/Towards-Better-Hand-Hygiene-for-Flu-Prevention and https://msphere.asm.org/content/4/5/e00474-19The Int…

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    Excellent article. There is a severe shortage of good information on this subject and your instructable is well detailed and easy to read and follow.Two comments however. Although many governments are saying 20 seconds with soap and water is enough the American Society of Microbiologists says 30 seconds is required for Influenza A, which, until now, was the most aggressive virus. For hand sanitizers they say four minutes of active hand rubbing is required with the best hand sanitizers (70-80% ethanol). They also tested hand sanitizers mixed with saline and observed far superior disinfection compared to the sanitizer on its own.See https://www.asm.org/Press-Releases/2019/September-1/Towards-Better-Hand-Hygiene-for-Flu-Prevention and https://msphere.asm.org/content/4/5/e00474-19The International Society of Infectious Diseases at promedmail.org is also an excellent source of information being a summary of all the various state and international health bodies information.

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  • Film Negative Viewer and Converter

    Fantastic idea and great execution but not quite what I want as I need high resolution.My question therefore is are there any hi resolution cameras that can be used for this project. The latest Samsung phone has a 108 MP camera and costs a small fortune for a retiree. Surely there must be some 48 MP cameras out there in hobby land by now but I cannot find them. The best I could find was on Amazon and 16mpI am wanting to produce something equivalent to a 1200dpi scan or better of old 35mm negatives so as to capture clearly the full background detail. I made the mistake of purchasing a commercial scanner that advertised such ability but the reality was it scanned at something very ordinary like 72dpi and then converted each single pixel into dozens of identical pixels to get the claimed…

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    Fantastic idea and great execution but not quite what I want as I need high resolution.My question therefore is are there any hi resolution cameras that can be used for this project. The latest Samsung phone has a 108 MP camera and costs a small fortune for a retiree. Surely there must be some 48 MP cameras out there in hobby land by now but I cannot find them. The best I could find was on Amazon and 16mpI am wanting to produce something equivalent to a 1200dpi scan or better of old 35mm negatives so as to capture clearly the full background detail. I made the mistake of purchasing a commercial scanner that advertised such ability but the reality was it scanned at something very ordinary like 72dpi and then converted each single pixel into dozens of identical pixels to get the claimed 1200 dpi. I suspect your project here does better than that.

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  • Easy Exploded 3D Drawings

    Hi Jon-a-tronYou have produced a lot of excellent tutorials on Fusion 360 so hopefully you can answer my query.I am hoping to convert some pre ww2 drawings to CAD and have been looking for a couple of years for an instructable or whatever that would allow me to create digital versions drawn in a similar manner to the originals. That is build up using lines etc from a zero datum like old drafting was done. Pushing 80 I cannot get the hang of using objects and editing them (yep - I am a classic dinosaur).Can you point me towards an Instructable or similar that would allow me and other dinosaurs to learn "old style" drawing in Fusion 360. Once I can produce a few drawings hopefully I can then make this excellent Instructable to produce exploded drawings as well.

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  • Low Cost DIY CNC Router

    For all those who are asking for plans - Please, Please, Please read the second paragraph of this Instructable.This Instructable is easy to read and, to me anyway, easy to follow. The concept is brilliant though like a few others I would prefer the Z axis did not move the whole gantry up and down. That said I cannot see a simpler way to achieve the desired results and, as the old saying goes, "if it ain't broke why fix it".I salute you sir.

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  • MmmLots of good thoughts put into this instructable (and more goodies to come even). I need a small rotary table for photography and I think (hope) I can adapt your plans to do the same project smaller by recycling a bread maker

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  • Mi_Tasol commented on tomatoskins's instructable Lathe Drum Sander

    Great idea.I am currently building one using a cheap flea market lathe and $5 worth of aluminium tubing from the local scrappy but tomake the thickness adjustment easy and always parallel I am going to bemounting two small car screw jacks with the shafts joined together.Like another poster I would hate having to reset the lathe or sanderas needed and with the unit on wheels it will take up minimal floor space (orcan go outside when that is appropriate) so felt $10 for a very rusty old lathe with no tooling was a good investment. A quick repaint, electrical checkout and new switch and the lathe works very smoothly. My biggest expense will be the base for the whole setup.Unlike the person who suggested a single adjustment screw in the centre I realize that the thickness table can/will twis…

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    Great idea.I am currently building one using a cheap flea market lathe and $5 worth of aluminium tubing from the local scrappy but tomake the thickness adjustment easy and always parallel I am going to bemounting two small car screw jacks with the shafts joined together.Like another poster I would hate having to reset the lathe or sanderas needed and with the unit on wheels it will take up minimal floor space (orcan go outside when that is appropriate) so felt $10 for a very rusty old lathe with no tooling was a good investment. A quick repaint, electrical checkout and new switch and the lathe works very smoothly. My biggest expense will be the base for the whole setup.Unlike the person who suggested a single adjustment screw in the centre I realize that the thickness table can/will twistif there is only one central adjustment point which is why I am redesigning to use thetwo linked car jacks as that will allow a single adjustment handle and ensureboth sides of the table move exactly the same distance. I may have to fit some sort of locking device - only time will tell.Photo will followafter I recover from surgery

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  • Good day allI was recommending Irfanview PURELY for batch photo cropping in this project. My apologies for the confusion.For general graphics manipulation/editing/cropping/joining etc Irfanview is a magic solution - no glam but lots of power and blindingly simple controls. It is no Photoshop but for 90% of what I need it does it far faster and easier than PS

    Thanks for the link. I looked it up and think a mix of that project and yours is what I will make. The manual positioning & magnetic locking the vertical camera positioning sure beats the heck out of a stepper and counter-weights for simplicity and eliminates lots of experimenting on counterweight settings. Thank you true as we say in Papua New Guinea. My project must be a little bigger than a microwave as one of my first scans will be an item 250mm high and 350mm wide - but I will use a microwave motor for sure for the turntable drive

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  • A fantastic Instructable that deserves allthe praise it has earned.First a suggestion. If you can run Windows software on your Mac (by dual boot oremulation or other means) try Irfanview with its add-ons. Irfan Thumbnails can batch crop every photoin a folder simultaneously. The learningcurve is very low - it took me under two minutes to learn and I am in my mid70s.Secondly your project has given me an ideafor a purely photogrammetry scanner that I will try and develop. I am thinking of using your basic idea with aslightly bigger box.The camera andlighting would be mounted on a counter-weighted horseshoe shape pivoted eachside a little above the level of your rotating table.A second stepper motor can then move thecamera and lighting in a vertical plane so that the first set of photos ar…

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    A fantastic Instructable that deserves allthe praise it has earned.First a suggestion. If you can run Windows software on your Mac (by dual boot oremulation or other means) try Irfanview with its add-ons. Irfan Thumbnails can batch crop every photoin a folder simultaneously. The learningcurve is very low - it took me under two minutes to learn and I am in my mid70s.Secondly your project has given me an ideafor a purely photogrammetry scanner that I will try and develop. I am thinking of using your basic idea with aslightly bigger box.The camera andlighting would be mounted on a counter-weighted horseshoe shape pivoted eachside a little above the level of your rotating table.A second stepper motor can then move thecamera and lighting in a vertical plane so that the first set of photos arefrom just below the turntable pointing up a little, the second set level andthen third and subsequent sets of photos taken from a higher angle.Hopefully that will solve the problems you(and others) have found with single plane photographs lacking detail for the top ofthe scanned object.Any feedback, including why this may notwork, are naturally welcome from anyone.Being retired I will also be looking atalternatives to PhotoScan - great software but I can spend the money better onlifes necessities.

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  • Congratulations A very good project and I think I can make it.Please advise how do I change the program to reed metres per second?Thank you

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  • This instructable is almost exactly what I want to do with my band saw but cannot because, being well past 70 my ability to learn Arduino is practically zero even though I am still capable of assembling and soldering the kit. Doubly so when guided by such a well written set of instructionsMy thought is to put six equally spaced reflectors on the bandsaw top wheel (I expect that at very low speeds a single reflector on a wheel doing only a few rpm when cutting metal would not get enough signals to be reliable) and I need to read out the blade speed in feet per minute and/or metres per second. I have butchered up a treadmill to provide a widely variable speed as no amount of pulleys and belts that I could come up with would bring the speed down to 80 feet per minute needed for some metals…

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    This instructable is almost exactly what I want to do with my band saw but cannot because, being well past 70 my ability to learn Arduino is practically zero even though I am still capable of assembling and soldering the kit. Doubly so when guided by such a well written set of instructionsMy thought is to put six equally spaced reflectors on the bandsaw top wheel (I expect that at very low speeds a single reflector on a wheel doing only a few rpm when cutting metal would not get enough signals to be reliable) and I need to read out the blade speed in feet per minute and/or metres per second. I have butchered up a treadmill to provide a widely variable speed as no amount of pulleys and belts that I could come up with would bring the speed down to 80 feet per minute needed for some metals.If you have a band saw in your workshop can I please suggest you design a version of this project suitable for use on band saws and make an instructable on that as well?

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  • Mi_Tasol commented on mikeasaurus's instructable Fix a Hole in Drywall

    Phils way will work but if you are in a hurry hole saw a bigger hole (10cm/4in) and slip the longest piece of 70x20/3x3/4 pine that will fit in behind the hole with a light skim of drywall mud on it and fasten with at least two drywall screws each side (I use 4 or 5 each side) - do not over tighten, you want the screw heads JUST below the surface so that they get the maximum support from the paper. The wood may be at a strange angle and need the ends cut at angles but length is strength.Pre-cut a 10cm/4in diameter plug and fit it to the hole while the drywall mud is still wet with two or three screws to ensure it sits flat. Firmly force the mud into the remaining slot and the centre hole then put a light skim over the top of the whole area. Using a damp sponge gently remove all the surp…

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    Phils way will work but if you are in a hurry hole saw a bigger hole (10cm/4in) and slip the longest piece of 70x20/3x3/4 pine that will fit in behind the hole with a light skim of drywall mud on it and fasten with at least two drywall screws each side (I use 4 or 5 each side) - do not over tighten, you want the screw heads JUST below the surface so that they get the maximum support from the paper. The wood may be at a strange angle and need the ends cut at angles but length is strength.Pre-cut a 10cm/4in diameter plug and fit it to the hole while the drywall mud is still wet with two or three screws to ensure it sits flat. Firmly force the mud into the remaining slot and the centre hole then put a light skim over the top of the whole area. Using a damp sponge gently remove all the surplus from around the screws and plug and then off the top of the screws and plug leaving the slightest amount of surplus so that you minimise your sanding and refilling.Let everything dry fully before sanding. Your shower curtain is now attached with screws, 30mm (1 1/4in) longer than your curtain fitting thickness, to the wood behind the drywall and that being well bonded to the drywall ensures it will not move.

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