Here is a list of all the postings oldvelo has made in our forums. Click on a thread name to jump to the thread.
|Thread: garden tractor wheel lug nuts and studs|
I had problems too with accessing my albums Etc. The advice I recieved was to use the Icon No 6 on the second row of the posting window or as it advises Ctrl + K keys together.
Great interesting project looking forward to seeing it running.
|Thread: Bird (feathered variety) expert(s) wanted.|
Last summer New Zealand we had Two hatchings of a Blackbirds family in a Hoya that grows on our front porch.
Both male and female feed the nestlings as long as it is daylight.
|Thread: [Project 5] Low Profile Table Clamps|
Fly cutter with the tool stuck out flailing a large radius on a small width workpiece NBG on a gear drive train.
Keep the diameter of the cutting circle just a fraction wider than the job when flycutting to minimize the torque load on a chattering gear chain. Belt drive is infinitely smoother running on intermittent cutting
Three toolbits mounted on 52 mm cutting head will cut faster with one bit starting the cut and the previous one exits.
Setting up is a breeze take out the clamp bolt and fix the setup jig in its place to get all the tips equal by installing the toolbits to sit on the jig and do up the clamp screws.
Sharpen dull HSS tips with an oilstone for longer life and almost mirror finish.
|Thread: Anyone made Myfordboy's powered hacksaw?|
This hacksaw has been in use for over ten years now with no problems. Hand hacksaw blades 18 TPI @ 50 to 95 strokes per minute with a rocking and oscillating cutting action that means that only a few teeth at a time in contact with the work.
Edited By oldvelo on 25/05/2020 01:57:02
|Thread: Mount St. Helens|
David Johnston Lost his life in the pyroplastic gas flow his recording obviously survived.
St Helens Erruption Video
More in this link
Edited By oldvelo on 20/05/2020 22:21:23
|Thread: Cross slide dial calibrations - opinions sought.|
Possibly of use to someone reading this thread 2 mm pitch crossfeed screw with vernier scale on the static dial
to read in 0.01 mm increments with the Static Dial on the top.
Edited By oldvelo on 16/05/2020 05:18:29
|Thread: Sharpening Files|
Edited By oldvelo on 15/05/2020 01:35:37
|Thread: "Mystery" Tool|
Physicaly handicapped spider
|Thread: Sharpening Files|
No need for messy dangerous acid to sharpen files just use two or three table spoons of Washing Soda per gallon of water. The ratio is not critical but an excessive ammount of washing soda will NOT speed up the process.
Suspend the files in the solution hanging verticaly in the centre of a plastic bucket. Two pieces of steel on oposite sides of the bucket wired together.
A DC power supply from a battery charger connect the + positive to the files and -- Negative to the steel plates. Hydrogen gas will be produced by the process so adequate ventilation is required
Depending on the power of the DC supply will determine the time taken to restore the files.
Do NOT be tempted to speed up the process using a DC welder as it cause the solution to boil violently.
NO stainless steel to be used in the solution. Dispose of the solution by chucking it on the lawn it will kill mosses and lichens
|Thread: Modern reversing switch|
A Single Phase motor must come to a stop be reverse curent applied or it will accelerate back up to speed and not reverse. Yes I have done it.
|Thread: I Have a Plan/s (deep hole drilling)|
A technique I have used to drill the spindle on wood lathes is to have the hole started on centre in the metal working lathe. Then assemble the spindle in the wood lathe and drive with the motor on SLOW speed. A 6mm twist drill with an extension shank silver brazed on that is longer than the spindle length. Chuck the drill in a hand held electric drill on low speed. Back out often to clear the swarf and keep adding cutting oil. The pilot hole came out on centre. Then used 8.5mm extended shank drill to finished size. With the drill and work both rotating in opposite directions the drill stays on centre.
|Thread: taper roller headstock adjustment|
I got the 1 hp DC motor from an online auction it came from Factory sale that had converted their variable speed drives to VFD units. The control unit is a KB Electronics AC to DC speed control KBCC “R” SCR Drive “Relay Reversing” – Chassis bought from an electronics salvage and sale company. Great for cutting theads it can be set to run forwards slowly and reverse at high speed. From memory the setup was under $250 New Zealand some 15 years ago.
A tread mill motor is an option with a few shortcomings as the top speed is around 5000 RPM and being physically smaller that an industrial motor the torque tends to fall away at less than around 1200 RPM.
An AC to DC control unit with no reverse Link to Dc Control
|Thread: Machine handles|
Looks like an interesting project for a model engineer to fabricate your own or modify a bought one to an Enirod Handle.
A highly polished handle operated by normaly oily hands should not be a problem
Edited By oldvelo on 09/05/2020 00:14:14
|Thread: taper roller headstock adjustment|
Consider the Single Phase Motor may? be the problem
When you have completed all the above tasks. A similar problem with a second had lathe purchased a number of years ago I did extensive checks and adjustments. The gearbox ratlted loudly complete with chatter at most parts of the speed range. Ditched the AC Single Phase Motor notorius for running roughly. Then fitted a AC to DC Speed Control and now have quiet smooth running and cutting. So impressed fitted a variable DC motor for the power feed. Being able to adjust the feedrate on the fly for facing cuts well worth it.
|Thread: Air supply to test run steam engine.|
I guess I am too late with this comment for Roger it may be of use to others. A repurposed refrigerator ran various small model engines successfully.
|Thread: Quick setting nuts|
Hi Added this sketch of 12 mm Slip Nuts we fabricated and used to quickly remove machine guards
|Thread: ANZACS - We will remember them!!|
Martin Dilly Get your jib down this is Brown's Yard. This thread is about Anzac Day Commemoration NOT a game of Political Football "Kia Kaha Arohanui Aotearoha".
Anzac Day commemorates the Gallipoli Landing on 25th April 1915 2779 New Zealanders, about a sixth of all those who had landed on the peninsula lost their lives and 4,852 wounded.
|Thread: Small skeletonised drill Press|
Looks like a Black & Decker dril press. I doubt if you will find a hand drill to fit. My sister in law worked for B & D in the 50's on testing drills off the production line 40 hours of use and failure were very common.
|Thread: Mystery machine..........|
You have made a great job of the restoration on this one now a few things you may want to consider.
Teeth cutting on the pull stroke with the crank turning anticlockwise.
With power hacksaw blade fitted cutting thicker material use the weight as far from the crank as possible maybe even a little more weight on the blade lifting handle and reduce the load for thin material.
A drip feed of cutting oil on the blade will greatly extend the blade life.
Fit a large sheetmetal tray under the vice to catch the swarf and cutting oil.
Best possible place for a lockdown in a workshop Stay Safe
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