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Grabcad (the library where you are finding all the stuff you like) is not closing down, GrabCad Workbench is - which is their online CAD software platform. See here: A Fond Farewell to GrabCAD Workbench - GrabCAD Blog

The motor is only half the battle. You mention the controllers are roughly the same price, but I think you may find out that they can be the differentiator between the motors. I'm not familiar with either the treadmill controller or the the e-bike but speed/load regulation is a concern - if you...

FYI - I have nothing against LMS - didn't mean to come across that way. I have bought from them as well and agree that they have great service and a broad range of products for small machines (as their name implies). But being in the great white North, everything I buy from the US is subject...

For the Emco I bought a backplate mount, as I had already made an adapter from the Emco's spindle nose to the chucks used by the mini-lathes. I had to drill holes to bolt it on as it had a bolt pattern with threaded holes and I needed 3 clearance holes, but a carbide drill worked a charm on the...

also consider an ER32 chuck and some collets. I bought one for my little Emco Compact 5 and its been great and probably not really much different in price (except at LMS...). With a full set of collets (1/32" steps) I can hold any diameter up to 13/16" and with less overhang than the 3 jaw...

Majority of time I get my metal from these guys Metal Pros - Small Quantity Metal Shop|Online Pricing and Availability as they are local to me and seem to carry the 1144 but once in a while I simply get stuff from Mcmaster-Carr as its actually cheaper or more readily available ot I'm just...

Yes to 12L14 for simple low stress machined parts. 1144 is great for things that might see higher stress like a crankshaft and it too does machine well, and can be surface (case) hardened if needed. Also, remember that 12L14 doesn't like to weld so if that comes into the equation then a...

deleted my response - reread and saw that the nub is already JB weld epoxied on.

I have the castings, you can see my original thread here: 1/6 P&W R-985 Wasp Jr by Bob Roach / Vernal Engineering I really need to update that, but progress has been slow................................................. My head castings were partly started by Bruce - he threaded the head to...

Make any progress on this? I need a kickstart to motivate me to progress my R-985 Wasp Jr.

Thank you for the explanation of the tooling ball use. I've heard of them before and generally thought I understood their use but a practical application / example always helps to bring me clarity. Much appreciated and great work. Wishing you a successful repair visit to the eye surgeon. Mike

Speaking of the "side nub" that has the lower valve, how is it attached to the main cylinder body? There appears to be a straight line from one side to the other that indicates a mating part. This could be the source of the leak.

this boiler discussion really belongs elsewhere but I can't help myself. The nerd in me is being drawn out - or its my OCD. Maybe if we chat over on a facebook group the governments of our various jurisdictions will step in and set us straight? Martin Evans does not call out 18 S.W.G. for...

Reread your Martin Evans "Model Locomotive and Marine Boilers", chapter 2, with specific reference to page 29 where he discusses flues and firetubes. Also, if your interested in model boiler design rules then the Australian Association of Live Steamers publishes their code book - for copper...

My experience has been that it near impossible to buy affordable quality arbors that run true. Straight shank arbors are quite easy to make, and for most hobby applications you can ignore the keyway. Then you can grab them in any collet or even an end mill holder. I've made straight shank...

So if the tooth form of the cutter looks straight sided, its likely made for a larger number of teeth gear. here's an example I have where you can't rely on the # of the cutter, and need to look carefully at it and figure out that they made a marking mistake. It shows #7, but also shows its...

without pictures its hard to say, but Amazon could be one source of your troubles. At the price mentioned the cutters are likely from China. Metric cutters (Module) are numbered opposite of DP so a #7 DP cutter is like a #2 Module and vice versa. If you were provided a "#7DP" but in reality...

Other considerations you may want to ponder: Ball screws (Taig) versus versus lead screws (Nomad - I'm assuming leads screws because they indicate "New Anti-backlash nuts"). IF you end up using it even a fair bit the ballscrews win here hands down. My humble opinion - I'm not convinced the...

The Taig is available as a "turn key" CNC machine. 5019CNC Micro Mill - TAIG Tools While I don't necessarily endorse the control components they have chosen or the control software (MACH3 and parallel port I'm assuming as its not listed - very outdated for current machines), it is turn key...

Well, if your lathe is capable of threading, you could always add a hand wheel to the lead screw and with a graduated dial (suitable to the lead of the screw) you could move the carriage a known distance (if you can keep count). I had a 3-in-1 machine that operated like that, mostly to be able...