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  1. RobinHood

    CMT Ursus 250 Repair: 3) Carriage Hand Wheel

    The hand wheel on the carriage was broken. I tried really hard to repair it, but without success. The material is White Cast Iron. It is considered non-weldable, non-brazeable because of its chemical composition (high chromium content). CMT uses this material extensively on hand wheels and dials...
  2. RobinHood

    Finally found one…

    Been looking for one of these used for 4 - 5 years now. Happen to browse for sale items in/around Calgary on the weekend and there it was: 24x36x5, Grade A, granite surface plate. Contacted seller, had a look this morning, and took it home with me. Couple of pictures of the haul: Frame has...
  3. RobinHood

    CMT Ursus 250 Repair 2) Lever Balls

    All the levers on the lathe have the same 30mm (nominal) round, black, hard plastic balls on them. My machine was missing 7. They have a M10x1.5 internal thread, a 4mm counter bore and a flat so that the ball can fit up against a shoulder on the lever stem. I had some black acetal in stock and...
  4. RobinHood

    Deckel FP 3 L

    The machine is safely home. Used a lift bed trailer. We were able to drive the forklift with the mill up the deck that was lowered to the ground. The 5000 lbs forklift had to work a bit to get it in position, but it worked out. Here is the load ready for the trip home. Yeah, I know, lots of...
  5. RobinHood

    Greedy Flipper Alert!

    1990 Jafo 32JU Milling Machine with Auxiliary Head $21,000 https://www.kijiji.ca/v-other-business-industrial/edmonton/1990-jafo-32ju-milling-machine-with-auxiliary-head/1570521482 Here is a picture of the data plate the seller posted with their ad. This machine was sold earlier this year in...
  6. RobinHood

    Need Voltage Regulator Tested

    The battery on the lawn mower keeps discharging. It starts with a boost. Investigated and found no output (0.9VDC) from the regulator. Input is ~18VAC at idle increasing to ~ 30VAC at 75% rpm. Did a search and found that there are lots of regulators for sale from $16 to $80. Reviews show that...
  7. RobinHood

    CMT Ursus 250 Repair: 1) Clutch

    Wave Spring Washers Working on my new to me lathe. I knew the clutch would need some work. Plain bearings in it are shot (knew that). But now I found 4 broken wave spring washers. They keep the plates separated when the clutch is not engaged. One side is always free wheeling when the other is...
  8. RobinHood

    Music to my ears

    Who ever said machine noises have to be annoying and boring - they just need to be choreographed together properly....
  9. RobinHood

    Thread Repair of a stripped out Master Jaw

    A new to me 16” 4J chuck has Master and Top jaws. The chuck is a Pratt, Steel Body, made in England sometime between 1962 and 2002 (based on the serial number). It is in overall very good condition with little to no wear. The metal surfaces have some staining, which could be polished out. There...
  10. RobinHood

    Grinder Tool Rest

    Spotted this design on Etsy.com using pinch bolts. Here is the link. https://www.etsy.com/ca/listing/928387496/knife-making-grinder-table-tool-rest-jig?ga_order=most_relevant&ga_search_type=all&ga_view_type=gallery&ga_search_query=lathe&ref=sr_gallery-4-27&organic_search_click=1 I think it...
  11. RobinHood

    Cutting Tool Geometry (More old educational videos...)

    This time I found some produced by the BBC in the seventies. The series is called “Engineering Craft Studies”. In this episode # 9 (1972) they talk about cutting tool geometry and power required while cutting at a specific speed and feed - but with different rake angles. Some good slow motion...
  12. RobinHood

    Moving the 3100 lbs Deckel KF2

    Moving day! We arrived at the seller’s place at 1300h. First we set-up Dabbler’s gantry crane and moved the mill into position inside the shop. We had just enough headroom below the opened garage door. With the mill all the way up, the trailer just slipped underneath the raised machine...
  13. RobinHood

    How to move a lathe (out of / into a basement)

    Stumbled across this write-up (with pictures) of how this fellow moved his lathes out of and into his basement... https://www.fahnoetech.com/moving-lathes/ No cost for the move is given...
  14. RobinHood

    Bore Welding (and Line Boring)

    Came across this video where he repairs a D10 tilt cylinder eye using a portable line boring machine, then bore welds it up and finally uses a modified boring/facing head to cut internal snap ring grooves. I wonder what prevents the welding wire from twisting up into a ball as the torch...
  15. RobinHood

    6.5” by 1.5”-8 TPI backing plate

    This is a NOS, cast iron, made in Poland backing plate. 6 1/2” OD, 1 1/2”-8 TPI threaded boss. $50 or trade for something interesting. PM me if interested.
  16. RobinHood

    Steel Cutting in Slow Motion

    This video shows how various steels behave when cut with HSS tooling. One can really see the clearance behind the tool. One can also see how the steel “piles up” right at the nose radius and how far ahead of the tool the material starts to deform before it is finally sheared off. Also note how...
  17. RobinHood

    Need A Project? Make One Of These....

    In case you run out of ideas / projects and have some scraps lying around.... Maybe that could be challenge: everyone give it a shot and post their results here? Size, material, finish, etc., is up to you.
  18. RobinHood

    Stellite 6

    I most likely have a project coming up where I’ll be working with Stellite 6 (6B in particular). First time for me. Already spoke with Kennametal / Stellite in Belleville, ON, to source the metal/get info. Carbide or Ceramic tooling should work I am told. “Going to go through lots of...
  19. RobinHood

    Craftex 601 Mill & Tooling and Lathe

    https://www.kijiji.ca/v-view-details.html?adId=1513321333 Also lathe https://www.kijiji.ca/v-view-details.html?adId=1513319187
  20. RobinHood

    Steady Rest For Colchester Master (and Standard Modern 1340)

    As many others have done as well, I needed a “COVID 19” project. My Colchester Master 2500 did not come with a steady rest. They are available online. Prices are very high - at least the ones I have seen. This is what an original one looks like Not sure of its capacity - looks like about 4”...