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    1/6 P&W R-985 Wasp Jr by Bob Roach / Vernal Engineering

    I’d suggest you either e resin print models first or have them printed for you this way you can maybe foresee issues before you make 28 “ mistakes”.
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    (CAD) 28 Cyl P&W R-4360

    As you have already found scale doesent always work to practicality fasteners coms to mind first. I would say adjust scale to practical size fasteners that are available there are lots of studs and nuts on this project maybe consider some what try to standardize if possible rod bolts...
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    (CAD) 28 Cyl P&W R-4360

    I may have already posted regarding thoughts on the project. . I’m a long time Rc scale modeler and early on found that many things just don’t scale well . I too would like to have a”scale model of it . In my opinion I YHINK coupling 4 7 cyl engines together . There are all kinds of couplers...
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    New member from East Tennessee

    Welcome to the group. I’ll be moving to Tenn in a few months . Spring Hill area . Engineer tool maker Rc scale modeler. Byron
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    1/16" Allen wrenches rounding off corners

    Most of guys involved with race cars are familiar with cams driven by a 3 bolt hub often with an eccentric bushing which allows the cam to be easily degrees the attaching holes are slotted you can easily model this up on cad Race engines are usually gear driven the crank is often keyed then...
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    1/16" Allen wrenches rounding off corners

    Be sure to put some kind of rust prevention on the screw paint maybe just oil flying around . These are usually pretty tough screws s I YHINK you have a good idea . A turned down head can split if you really get after it .
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    1/16" Allen wrenches rounding off corners

    Those have been long standing quality . If possible I’d switch to socket head screws . I intently hate grub screws set screws in the States. I’m currently working to convert to clamp hubs and clamp collars even if I have to make them special . I use two SHCS with these . They do take up more...
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    Prusa XL 3D Printer

    I did look for “ rubber like resins” in hope that it might be possible to print the more scale waffle or checker board tread as these are not readily available . I can fore see a bit of issue modeling this. I YHINK concentrating on creating one diamond or square the use a rotational sweep . I...
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    Jerry Howell's V-four in 3d printed form

    Having done a number of cad systems over the years it was neat when SW. came out with auto dim . This only required you to remove double dim and may be shift things around so looked more organized. Acad followed shortly after . All was good as I intently disliked formal drawings. The shop...
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    Prusa XL 3D Printer

    Thanks much fo the information thes monster planescan vibrate bout any thing loose socially twin engine ones these are not closet irds My big Corsair flew for 13 years my flight log book was nearly 2” thick . The canopy was replaced a number of time the cowl as fiber glass and lasted about a...
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    Prusa XL 3D Printer

    That particular part could have a hole in it. Thanks . I’m just trying to learn about this process as there are a number of things my son and I could get into .we do giant scale as it is called Rc warbirds or WW 2 aircraft. Printing will making details much easier. I’ve found several resins...
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    Prusa XL 3D Printer

    I have a question in various forums and threads the use of drain holes is noted for example cylindrical objects . I can see this. So if I model a cylindrical object it may be a tube or a capped tube so if I set the model in isometric a tilt it so it naturally drains is that ok ? This...
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    (CAD) 28 Cyl P&W R-4360

    When I read my previous post I nearly fell over the lovely spell check saw fit to to call affliction addiction. Entirely false I carefully edited it before posting and all was well once again I do not have addiction the med section notes a cancer which is true it’s not going to go away but...
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    (CAD) 28 Cyl P&W R-4360

    I haven’t lost interest in this project . My addiction leaves me with no real energy fortunately I’ll be moving in with my son. He will be able to grab me by yhe hand and say let’s do something model wise . Lately we have continued planning on a resin 3D printer . He will have rooms and...
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    Round Column Mill

    We have a round colum grizzly mill. The biggest fault that I see is the limited verticals adjustment and the effort needed to raise or lower it. Mostly it’s left in one position then any holding devices are shined to the operating envelope. I voted strongly against this when it was purchased...
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    Piston Valve Vs Slide Valve

    My little steamer has iston valves if I just use air tool oil I realy don’t have much leakage they are use smal but very clos fitting The biggest problem is getting the event s adjusted right. While I have read extensively on how to do this it still is a tedious process of “ about right “...
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    More med stuff

    Unfortunately this robot had not been programmed to used medical terms but instead used street terms and language most not complimentary and some would take this as inappropriate. So I’ll leave it to imagination most get the idea . Of late the nurses and docs have been wonderful and caring I...
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    Chemo

    When the side effect fatigue sets in you surely could go into depression . So far I’ve found my desire to just find out about things and look up things eve just being part of forums like this highlights the day . I read constantly even though eyesight is poor. Not being able to do shop...
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    Chemo

    Cancers are like flies flying around they say sh there is a person let’s get him .
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    Chemo

    Interesting. I’ve avoided sunlight even playing sports I almost always wear summer long sleeve shirts. No shorts I don’t even go swimming much any more even though I was on swim teams through college . Welding was a source of bad light but I always wor leathers and good helmets gloves seldom...
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