The Workshop Progress Thread (2017)

Advert

The Workshop Progress Thread (2017)

Home Forums Work In Progress and completed items The Workshop Progress Thread (2017)

Viewing 25 posts - 226 through 250 (of 356 total)
  • Author
    Posts
  • #301292
    ega
    Participant
      @ega

      PPS re HK knurling tool:

      Here is the finished tool with arms reversed and pins shortened and provided with the screwdriver slots which now seem necessary; I left a projection of about 0.050" as an insurance against having to recut the slots in the hard HSS pins:

      dscn1368.jpg

      First test piece with new arrangement:

      dscn1366.jpg

      The original adjusting nut knurled by the tool itself:

      dscn1370.jpg

      The photos are rather poor even by my standards; I dropped my cherished Panasonic compact some time ago and have been struggling with a less familiar camera.

      Advert
      #301293
      Journeyman
      Participant
        @journeyman

        Ega, nice job looks to work very well.

        John

        #301303
        Emgee
        Participant
          @emgee

          Nice crisp knurling Ega, tool works well it seems.

          Emgee

          #301959
          JasonB
          Moderator
            @jasonb

            Having baked the Thermacure paint onto the Chuky parts in the oven after last Sundays Roast I got it put back together, made a wooden base and mounted it on to that. Then with the arrival of some M7 x 0.75 taps from Rotagrip I was able to complete the burner connection to the flexi hose and then take a few snaps before trying to fire it up.

            Took a few flicks of the flywheel to warm up the engine but once upto running temp it starts straight away

            J

            #302070
            mechman48
            Participant
              @mechman48

              JasonB

              ​Niiiice, I like it thumbs up

              George.

              #302085
              Neil Wyatt
              Moderator
                @neilwyatt

                Well made a couple more (much narrower) slots in the webs of my angle plate very impressive how the 1/4" four-flute cutter worked as a slot drill!

                The slots for mounting it on the shaper are about 1/4" too short either side. So I now need to find a big angle plate to mount the big angle plate on… perhaps some 2" angle will do if I take things easy?

                Or perhaps clamp some 2 1/2" square to the mill bed and the angle plate to that? then jury-rig a toolmaker's jack to support the back of the plate.

                Neil

                Edited By Neil Wyatt on 11/06/2017 14:13:38

                #302250
                duncan webster 1
                Participant
                  @duncanwebster1
                  Posted by duncan webster on 14/03/2017 21:43:54:

                  Posted by duncan webster on 05/03/2017 19:51:59:

                  img_2936 (small).jpgJust to show that I do make stuff now and again, here's some pictures of the bogies for a new club riding truckimg_2937 (small).jpg

                  Progress report, here's the main steel chassis, all it needs now is skirts, paint brake levers and final assembly. I'm hoping anothert club member will step up to the plate!

                  img_2939 (small).jpg

                  Having decided I'd done enough and it was time for someone else to take over I took the chassis and bogies to the clubhouse and left them on the table. After a couple of weeks they decided it was in the way, so put it in the back of the toolshed. I therefore had to bring it back home and finish it off. Here it is in workshop white (primer). I refuse absolutely to get involved with gloss paint! It's going back to the track on Wednesday and is NOT coming back here!

                  img_2981 (small).jpg

                  Edited By duncan webster on 12/06/2017 17:16:20

                  #302251
                  HasBean
                  Participant
                    @hasbean

                    Ega, well done, I like the improvments. My pins are made of silver steel, just hope they're up to it.

                    Paul

                    #302568
                    Jim Nic
                    Participant
                      @jimnic

                      More progress (but slow) on the Popcorn. I turned this piece of bar:

                      via this:

                      this:

                      and this:

                      into this:

                      I combined the crosshead guide, for that is what it is, with this, the crosshead:

                      To get this (attached to the previously made cylinder):

                      I'm not too happy with the finish on the crosshead guide but frankly there is so much headscratching and work in it I can't bring myself to scrap it. Probably the more I look at it the more it will grate on me and I'll end up making another one having learned a couple of lessons from the first.

                      Jim

                      #302594
                      Hopper
                      Participant
                        @hopper
                        Posted by Jim Nic on 14/06/2017 20:38:50:I'm not too happy with the finish on the crosshead guide but frankly there is so much headscratching and work in it I can't bring myself to scrap it. Probably the more I look at it the more it will grate on me and I'll end up making another one having learned a couple of lessons from the first.

                        Jim

                        Don't worry, you are not an orphan there. Seems to be the way it often goes. But the longer you leave it, the better it looks!

                        #306317
                        JasonB
                        Moderator
                          @jasonb

                          Got a bit more of the Otto Langen engine done before the workshop became too warm.

                          Cut off some 5" ali on my 4" capacity Femi saw and proceded to rough out the shape, I use Alibre to work out the length of facing cuts at 0.020" intervals.

                          Then blended the cuts in by hand using a woodturning scraper and back end of a boring bar as the tool rest

                          It even fits on the columnsmiley

                          Edited By JasonB on 09/07/2017 17:10:56

                          #306321
                          Neil Wyatt
                          Moderator
                            @neilwyatt

                            Nice to see you helping out the parish church with a new font.

                            Neil

                            #308388
                            Jim Nic
                            Participant
                              @jimnic

                              Making slow progress on the Stew Hart Popcorn engine. Here are a couple of pictures of the first trial assembly of the major bits.

                              Next up is the valve operating mechanism after which I can get it running with a temporary air supply and then on to the air manifold with it's throttle valve, governor and whistle.

                              first assembly 3.jpg

                              first assembly 2.jpg

                              #308415
                              mechman48
                              Participant
                                @mechman48

                                Progress on my Vertical cross engine, chain drilled out the major apertures then after some fiddling about setting up …

                                9.vscross machining top plate (1).jpg

                                ​…squaring front edge 90 * to datum edge

                                9.vscross machining top plate (4).jpg

                                ​Milling out flywheel aperture…

                                9.vscross machining top plate (6).jpg

                                end result…

                                9.vscross machining top plate (7).jpg

                                George.

                                ​p.s. somehow my albums have started to overlap the following albums… anyone help with solution, looks as though it's linked to format spacing, started after I inadvertently deleted my miscellaneous album, possibly could a moderator offer assistance ?

                                #308422
                                Roderick Jenkins
                                Participant
                                  @roderickjenkins93242

                                  Nice work George. I've just been re-reading Tom Rolt's autobiography. He says that, before the advent of the flame cutter, 1 inch thick plate frames for standard gauge locomotives at Kerr Stuart were cut out by chain drilling and then hand chiseling. They were men in those days.

                                  Rod

                                  Edited By Roderick Jenkins on 23/07/2017 19:38:54

                                  #308427
                                  Jim Nic
                                  Participant
                                    @jimnic

                                    Nice result George.

                                    On my version of this engine I stood the top plate on edge against an angle plate and cut around all the edges with a 5mm slot drill to make it look a little less slabby.

                                    Jim

                                    dsc00976.jpg

                                    #308438
                                    mechman48
                                    Participant
                                      @mechman48

                                      Nice touch Jim… food for thought there. looking at your flywheel it seems to be a fabricated one that is an option on the drawing, I have a 4" Stuarts CI flywheel that I intended using so it won't be as wide as yours is… but there again changes can happen…thinking.

                                      George.

                                      #308453
                                      Hopper
                                      Participant
                                        @hopper
                                        Posted by Jim Nic on 23/07/2017 20:54:55:

                                        Nice result George.

                                        On my version of this engine I stood the top plate on edge against an angle plate and cut around all the edges with a 5mm slot drill to make it look a little less slabby.

                                        Jim

                                        dsc00976.jpg

                                        That's a lovely looking engine. What is it? Are plans available?

                                        #308458
                                        JasonB
                                        Moderator
                                          @jasonb

                                          Nice work on the two Stew Hart designs Jim and George, both looking good.

                                          George I can't see anything out of place when I look at your albums, can you post a screen shot of what you see?

                                           

                                          Having made the base plate for the 1/4 scale otto the other day based on the Lenaz drawings I decided that I did not like it, just looked too flat and wide.

                                          So as I had already altered the lower column to look like the first engine produced rather than what was on the patent drawing I decided to try and replicate the base from that. So milled the above 10mm plate down to a smaller octagon and added a 6x6mm rebate around the top. next mitered some 3 x 25 flat bar taking into account a 3deg draft angle then welded that onto the modified baseplate. next chopped up some 1/4 x 3/8 and welded that into an octagon before welding that to the bottom of the 3 x 25. Finally plug the holes with some 8mm dia bar.

                                          Then just a case of re drilling the 6 holes and fitting the bosses and a quick wipe of filler to tidy it all up. Hopefully a bodge that JS would approve of!

                                          J

                                           

                                          BTW if anyone has too much time on their hands then have a look at Wayne Grenning's facebook page of the 1:1 replica of the Otto Langen engine, if you go to the photos section there are about 1000 images of the work involved

                                          Edited By JasonB on 24/07/2017 07:51:06

                                          #308469
                                          Jim Nic
                                          Participant
                                            @jimnic

                                            George. My flywheel is indeed fabricated, not exactly as Stew Hart designed but similar and it worked out well. It was an interesting thing to have done and I've used the method for 3 others since.

                                            Thanks for the comment Hopper. The engine is the Vertical Cross Single designed by Stewart Hart in 2013 as part of his "Dads and Lads" series. The plans are freely available, I downloaded them from Model Engine Maker site. Big picture, albeit with a strange colour bias, below.

                                            vertical cross single 1.jpg

                                            Jim

                                            #308487
                                            mechman48
                                            Participant
                                              @mechman48

                                              Jim… Just noticed your crankshaft web is different to the drawing's standard design, I assume that you changed that for cosmetic & balance purposes… for some reason reminds me of the 'Nodding donkey' engine in the oilfields… smile .
                                              ​what's the colour on the frame, looks like blue bias ?

                                              George.

                                              #308499
                                              Jim Nic
                                              Participant
                                                @jimnic

                                                George

                                                Yes the crankshaft shape is for cosmetic reasons (as are most of the "modifications" on my engines) and to fully use up the piece of steel I made it from. I don't think the mass of the extension is enough to affect the balance particularly at the low speed the engine runs at.

                                                The colour of the photo is a strange result from my cheap happysnapper digital camera in artificial lighting, the model is painted in a dark blue slate grey kind of a colour which came from Revell model paints, number SM350. I can't recall where I got it, probably from a toy/model shop locally.

                                                Jim

                                                #308606
                                                mechman48
                                                Participant
                                                  @mechman48

                                                  JasonB

                                                  … George I can't see anything out of place when I look at your albums, can you post a screen shot of what you see?​…

                                                  These 3 box's seem to overlap in the text & heading area…

                                                  mew capture.jpg

                                                  George.

                                                  #308624
                                                  JasonB
                                                  Moderator
                                                    @jasonb

                                                    Is the Misc Album the one you deleted? may need to clear your Cache. As I said looks OK to me but will login as you to see if any different.

                                                    mechman48.jpg

                                                    #308625
                                                    JasonB
                                                    Moderator
                                                      @jasonb

                                                      Try it now, may not have cured the overlapping but your Misc album does now show the 88 photos that were hiding in there.

                                                      J

                                                    Viewing 25 posts - 226 through 250 (of 356 total)
                                                    • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

                                                    Advert

                                                    Latest Replies

                                                    Viewing 25 topics - 1 through 25 (of 25 total)
                                                    Viewing 25 topics - 1 through 25 (of 25 total)

                                                    View full reply list.

                                                    Advert

                                                    Newsletter Sign-up