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Type: Posts; User: TommyGMachining

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    Final restoration video link below. Yes there are...

    Final restoration video link below. Yes there are things that still need fixing eg x axis scoring, but this is certainly a usable machine.
    https://youtu.be/XLajd90LmzQ

    Thanks for following along!
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    First of off, merry Christmas all Secondly the...

    First of off, merry Christmas all

    Secondly the paint has dried, and the colour might be a bit controversial :D
    It is N35 grey which actually almost looks white. It looked a bit drab and I kinda...
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    So we are finally at this stage. Old paint is...

    So we are finally at this stage.
    Old paint is stripped, machined edges are masked off
    390146

    My welding bench is in a state of chaos with pieces everywhere
    390147

    I wanted to paint tonight,...
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    I put it off as long as I could, I've now tackled...

    I put it off as long as I could, I've now tackled the coolant tank
    From the sounds of things, the previous owner hadn't touched this mill in the 4 years he had it. So who knows how long the coolant...
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    I found something I didn't like on the x axis,...

    I found something I didn't like on the x axis, the oil hole doesn't intersect with the oil groove
    I took to it with a dremel (it felt wrong to cut into the ways let me tell you)
    This might explain...
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    That is for the gib strip (they obviously didn't...

    That is for the gib strip (they obviously didn't want it going anywhere!)
    You are correct there are locating pins to hold the gib, and other screws to adjust the pressure
    Hopefully the photos below...
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    Well got back to this project and removed the x...

    Well got back to this project and removed the x axis which was very stiff.
    Removal was fairly straightforward, remove both handwheels, remove the right cover plate, undo the screws and slide out the...
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    The mill came with a slotting head, I gave it a...

    The mill came with a slotting head, I gave it a bit of attention over the weekend
    It was completely seized up, but now runs silky smooth
    Other than surface rust and some lubricant (grease?) that...
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    There was a big beefy mill on gumtree the other...

    There was a big beefy mill on gumtree the other day down south, I was very tempted except I don't have the means to unload it at present, and my shed is in a state of chaos at the moment
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    Getting back to this mill project. I cleaned up...

    Getting back to this mill project. I cleaned up the table with scotch bright
    Only needed to go over it lightly and it came up awesome

    389844
  11. I have almost the exact same unit that came with...

    I have almost the exact same unit that came with my Kent grinder
    Mine is both coolant and dust extractor but you don't want to run both at the same time

    I have dumped the coolant out of my tank,...
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    I managed to get the y axis off and the long...

    I managed to get the y axis off and the long travelling gear looks great! The gearbox oil looked pretty clean, but I changed it anyway

    The underside of the y axis also looks good. The lightning...
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    https://www.youtube.com/watch?v=mC2wmoFuyNc&ab_cha...

    https://www.youtube.com/watch?v=mC2wmoFuyNc&ab_channel=DesignCreativity%26TechnologyChannel
    Have a look at 13:20

    Yeah not sure if there would be a better way, at least you get more surface use...
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    Yeah it normally has a joy stick. I think I will...

    Yeah it normally has a joy stick. I think I will make something for manual jogging at least
    Maybe I'll make it really simple and keep it all analog and mechanical. We'll see
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    Yeah I think you have a point. Mine is using a...

    Yeah I think you have a point. Mine is using a single phase motor as well
    I'm thinking of a single powerfeed motor with a clutch to control which axis gets power. I think it's unlikely I'll need...
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    Big plan for this weekend is disassembling the...

    Big plan for this weekend is disassembling the axes.
    I'm having trouble working out the y axis on top of the column though

    389005
    I've tried undoing the leadscrew nut at the back, and completely...
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    There might even be some goodies in the tank. The...

    There might even be some goodies in the tank. The last one I cleaned out had some random tools that dropped in there. Only centre drills unfortunately, but maybe I will get lucky and find something...
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    So having a bit more of a look at this mill. I...

    So having a bit more of a look at this mill. I thought I would share a bit more.
    After removing the vertical head slide we can see some of the gears look to be in great shape:
    388996
    The spiral...
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    Both horiz and vertical spindles are MT4. So I'm...

    Both horiz and vertical spindles are MT4. So I'm considering and MT4 to MT3 adapter to suit my tools or bite the bullet and get MT4 tools if I like it.
    It came with an original collet chuck and...
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    I've seen a guy use it the other way around,...

    I've seen a guy use it the other way around, rather than pushing the emery, he wrapped it around the shaft and pulled it with this tool
    Provides more than just 2 lines of contact that way

    and you...
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    I got it home and off the trailer with dodgy...

    I got it home and off the trailer with dodgy improvised lifting techniques (I need to build a gantry), and it looks heaps better in the improved light
    The ways are very stiff even after oiling. They...
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    Ha ha yes that will bit it I was on the fence,...

    Ha ha yes that will bit it

    I was on the fence, especially looking at the exterior and what horrors might be lurking inside lol
    I might have a Hercus mill on offer soon though...
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    Yeah not sure if it is a keeper or not, but I...

    Yeah not sure if it is a keeper or not, but I think I can sell it quite easily if it comes to that

    Out of interest, are the pictures in this post loading for you? My internet seems to be playing...
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    GHA Mill (Deckel FP1 clone)

    I stumbled across this little mill about a week ago on gumtree
    I'm in Tas, and something like this doesn't come up very often.

    So despite consulting with people who recommended letting this one...
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    I've managed with the Hercus for a couple of...

    I've managed with the Hercus for a couple of years no problem. Yes something bigger could have its uses, but the versatility of horizontal and vertical (also the ability of any and every angle with...
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    Bringing up an old post sorry. Just got a GHA...

    Bringing up an old post sorry.

    Just got a GHA on the weekend
    You are going to hate me, I now have both of those machines :D

    I'll see myself out :wink:
  27. Grinding hex broaches with limited machine tools

    I recently made a rotary broach and a lot of people questioned about making hex broaches with limited equipment
    So I created this video
    I thought it might have some benefit to some here

    PS the...
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    If you use a slitting saw I would make sure to...

    If you use a slitting saw I would make sure to have some sacrificial backing material behind the comb
    The metal is thin and the fingers long, so they will be prone to bending under the cutting...
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    Nice Hercus mill :) Safety glasses for sure....

    Nice Hercus mill :)

    Safety glasses for sure. It really depends on where chips are being thrown. I've worn a faceshield once or twice because when chips were flying up near my face.
    I wear hearing...
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    Just need the vertical head, dowel pins and bolts...

    Just need the vertical head, dowel pins and bolts if you have the gear attached to the taper shank
    You will need a draw bar for the vertical tools, but that is nothing too special. Note that you may...
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    Expanding foam would work I did this to minimise...

    Expanding foam would work
    I did this to minimise drafts under a flashing
    Just don't go too crazy with the foam, I had it oozing into my shed lol
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    I put brass shim stock between the base and the...

    I put brass shim stock between the base and the upper section of the tailstock and that did the trick for me
    It didn't need much, and it has saved breaking centre drills
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    I've got 1 HP on mine, but I'm limited by belt...

    I've got 1 HP on mine, but I'm limited by belt slip. I've taken 60 thou (1.5 mm) depth of cut in steel, but the spindle starts slowing, so I find 40 thou as a good depth
    To fix the belt slip I'll...
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    I often use HSS applying just a dab of soluble...

    I often use HSS applying just a dab of soluble cutting oil with a touchup paint brush as it makes less mess.
    I would probably look at your speeds and feeds. HSS chips should not be getting past...
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    I went with a quick method for most of my wall...

    I went with a quick method for most of my wall tools to just 'get the tools out of the way'

    I got some small aluminium tube and wood screws. I was able to cut the tubes to the required length and...
  36. I didn't even know they made imperial Hercus...

    I didn't even know they made imperial Hercus lathes
    If you do have a slotted slide I'd be interested
  37. Looks great! I take it the height matches your...

    Looks great! I take it the height matches your crosslide so you don't have to adjust tool heights?

    I'm after a slotted slide for my 9inch, but Mal's website is always saying out of stock
    I might...
  38. Take it apart and have a look. It's all about the...

    Take it apart and have a look. It's all about the alignment really
    Other than excessive heat (look up curie temperature) or lots of heavy percussive shock, I'm not sure magnets can loose their...
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    Toolmaking Competition 2020 #TMC2020

    I thought I would drop this here if anyone is interested in toolmaking or considering starting a youtube channel (or have one already)

    This event is a lot of fun, the community is fantastic, and...
  40. I don't see myself wet grinding anymore after the...

    I don't see myself wet grinding anymore after the mess and seeing how quick coolant tanks go bad when not in use lol
    I coated everything with way oil but as a few people have suggested a silicone...
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    I'm thinking of doweling mine so I can take it...

    I'm thinking of doweling mine so I can take it off, machine it, trial fit, machine it etc and maybe scrape the final amount. It's going to be finnicky

    How long is your extension? I'm aiming for...
  42. And hopefully it's not so foul inside!

    And hopefully it's not so foul inside!
  43. So long as they aren't dropped or heated they...

    So long as they aren't dropped or heated they should retain magnetism.
    I spoke to a few people that repair them and they say that any magnetism loss is usually just the poles not lining up. It's...
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    Great work! I'm halfway through a riser block...

    Great work!
    I'm halfway through a riser block for my Hercus mill
    I'm also fabbing a box and have a chuck of cast iron ready

    How did you keep dovetail alignment?
  45. Magnetic Chuck Dissassembly and Repair

    Ever wondered about how magnetic chucks worked or what is inside?

    https://www.youtube.com/watch?v=Yn_yeZkuKmI
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    I agree with this speed A rule of thumb I use...

    I agree with this speed
    A rule of thumb I use for max RPM is 9000 / D
    Where D is the endmill diameter or workpiece if turning

    This applies for HSS cutter on mild steel. If running carbide I try...
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    Good point. When I apply water soluble oil it is...

    Good point.
    When I apply water soluble oil it is with a brush. Would not recommend flood/spray coolant

    My scrappy board is still going strong 2 years on, just stained and a bit saggy!
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    I've taken to a simple approach, it's not perfect...

    I've taken to a simple approach, it's not perfect but it makes it easier
    I place a board of plywood under the lathe and it catches most of the chips

    Extra benefit is it can only hold so much so...
  49. The machines that you are looking at look decent....

    The machines that you are looking at look decent.
    Gumtree is a good place. also machinez4u can have decent old iron, but maybe at higher cost and bigger than you need
    I would steer away from cheap...
  50. These days I only use it as part of the 'story',...

    These days I only use it as part of the 'story', build is going bad so sad music etc
    Otherwise I only do voice over and machining noises :)
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