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7th November 2023, 12:14 PM
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FREE: QLD Black and Decker "vintage" 200mm (8 banana) bandsaw with motor
i've had this bandsaw for years which I set up with a countershaft and pulley to run at slow speed for cutting non ferrous metals. All my mods are reversible. It has a few blades, and the blade...
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25th October 2012, 11:33 PM
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I had a similar problem - milling slide no nuts. ...
I had a similar problem - milling slide no nuts. I turned a set of nuts on a threaded mandrel; rectangular foot but circular tapped pillar. My slots are about the same size as yours.
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23rd September 2012, 11:52 AM
Thread: Mars bar no, Mars lathe!
by unixbigot- Replies
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No spare gears, but have the cutters
Old Hutchoo, I have a mars great scot (missing many original parts alas) but with a relatively complete set of gears.
Don't have any spares, but I do have some of the cutters to make more. I've... -
23rd February 2012, 10:28 AM
Thread: Free compound slide-if you can use it
by unixbigot- Replies
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What a conundrum. It doesn't look like either...
What a conundrum. It doesn't look like either the cross slide or the compound slide on my Great Scot. Both of those have the female dovetail on top.
(First pic is cross-slide with compound... -
2nd February 2012, 10:30 PM
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Thanks Davycrocket, and all who've contributed to...
Thanks Davycrocket, and all who've contributed to my confusion..
Yep, I thought I'd got lucky when I found a bunch of 1.5" backplates for sale, but they were the 6TPI BSW thread, so I... -
10th January 2012, 01:53 PM
Thread: Mars metal shaper
by unixbigot- Replies
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Here's some info on their lathes (of which I have...
Here's some info on their lathes (of which I have one). The page mentions that they made shapers but has no more info.
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28th December 2011, 10:36 AM
Thread: 100mm Hole in Bandsaw Door
by unixbigot- Replies
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What about an air- or drill- powered nibbler?
What about an air- or drill- powered nibbler?
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14th December 2011, 11:08 AM
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counterbore
Try here: McJING Tools Online
Also, you might be able to modify a tap seat cutting tool or a woodwork spade bit (by fitting a wooden plug over the pointed tip to serve as a pilot) to do the job.
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8th December 2011, 02:04 PM
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Sourcing or converting a backplate for 1.5" 8TPI 55deg
I have a Mars "Great Scot" lathe with a 1-1/2" 8tpi spindle.
I was told by the previous owner that this is the same as hercus and southbend, so I bought a used backplate to suit, advertised for... -
16th November 2011, 10:33 AM
Thread: Leftover part from BS 4 Bandsaw??
by unixbigot- Replies
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I was stumped by that too. My best guess is...
I was stumped by that too.
My best guess is that it's a blade rest---if you stand it on the bed within the work-clamping area, the point fits into the backbone of the frame and prevents the full... -
19th October 2011, 02:07 PM
Thread: Anyone got an island benchtop?
by unixbigot- Replies
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I made a new workbench this year (still going,...
I made a new workbench this year (still going, haven't fitted the planned electric powered vises yet) Workbench - a set on Flickr
It's mobile w/ locking wheels and since I recently added a metal... -
17th October 2011, 10:39 AM
Thread: Hand Held RPM meter (tacho)
by unixbigot- Replies
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I haven't quite finished writing up the doco yet,...
I haven't quite finished writing up the doco yet, but when I do it will be at Make The Future
The code and schematic (eagle CAD format) is available right now at... -
16th October 2011, 09:42 AM
Thread: Hackersheds.
by unixbigot- Replies
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Hackersheds.
Moved here by .
At the sale yesterday there was a discussion about men's sheds and hackerspaces (same sort of thing but with girls allowed :)
Here's the link for the brisbane hackerspace :... -
13th October 2011, 11:27 PM
Thread: Hand Held RPM meter (tacho)
by unixbigot- Replies
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I built my own tachometer using a microcontroller...
I built my own tachometer using a microcontroller board (an arduino clone called RBBB), a 16x2 LCD and a hall-effect sensor.
With a tiny rare-earth magnet hot-glued to a shaft or pulley, it... -
6th September 2011, 09:14 AM
Thread: Source for single 5C collets?
by unixbigot- Replies
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McJing tools (mcjing.com.au). They're in sydney...
McJing tools (mcjing.com.au). They're in sydney but ship same day express, I typically get my orders (in brissy) next or 2nd day.
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5th September 2011, 07:46 PM
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Last time I added a downpipe for the same reason,...
Last time I added a downpipe for the same reason, I did it with a nibbler - Nibbler - Wikipedia, the free encyclopedia - air powered one for quick rough shaping then finished off with hand nibbler.
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1st September 2011, 07:55 AM
Thread: postage time from US
by unixbigot- Replies
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The last heavy order I had from the US (in June)...
The last heavy order I had from the US (in June) took 18 days.
Parcels larger than 100g seem to be taking much longer now (2-4wk) than smaller ones (7-10d). -
29th August 2011, 09:43 PM
Thread: Metalworking videos
by unixbigot- Replies
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Don't get your Cains crossed, 'tubal-cain' (the...
Don't get your Cains crossed, 'tubal-cain' (the name of the supposed first blacksmith of antiquity in the judeo-christian bible), has been used as a nom-de-plume by several different people.
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21st August 2011, 09:50 AM
Thread: Thread cutting lube
by unixbigot- Replies
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Do try the offset method, but as for cutting oil,...
Do try the offset method, but as for cutting oil, I found a hint in one of the SI Workshop Practice Series that said "50/50 neatsfoot oil and paraffin" makes a good cutting fluid. Having some...
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9th August 2011, 11:09 PM
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Looks like steel merchants and the Internet don't...
Looks like steel merchants and the Internet don't mix so well. Being a 9-5 desk jockey who only slings chips by moonlight, I like to shop online where I can.
Of the 3 steel merchants in my area... -
9th August 2011, 11:02 PM
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Progress update: Still haven't got the oilers...
Progress update:
Still haven't got the oilers forming visible drips, but am satisfied enough for now that they drip at an acceptable and steady rate.
The parting-of-the-red-sea that my... -
1st August 2011, 07:59 AM
Thread: using a wood lathe on metal
by unixbigot- Replies
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I've turned aluminum and brass up to 25mm dia on...
I've turned aluminum and brass up to 25mm dia on a wood lathe using one of those x-y cross-slide vises bolted to a wooden platform which is in turn fixed to the bed.
Vise holds an improvised... -
31st July 2011, 08:06 PM
Thread: Use of machine shop in Brisbane
by unixbigot- Replies
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What sort of machinery do you need? I think...
What sort of machinery do you need?
I think Kenmore mens shed (Shed West - Home) have a lathe. Brisbane Hackerspace at fortitude valley (hsbne.org) have a 9x20" lathe and some other machine tools. -
26th July 2011, 10:00 PM
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The forums really didn't like my edited picture. ...
The forums really didn't like my edited picture. I lowered the res and uploaded a new attachment.
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26th July 2011, 09:42 PM
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Here is a picture with the needle seat removed...
Here is a picture with the needle seat removed from the sighting chamber (inset is the top side of the seat, main picture shows the needle and underside).
I lightly filed off the burring around... -
26th July 2011, 06:41 PM
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I requested a clarification from Scott metals. ...
I requested a clarification from Scott metals. They say they don't stock any bar over 20mm, and will only order in for sales of a whole 6m length.
They seemed puzzled as to why anyone would... -
25th July 2011, 10:43 PM
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The part pointed to by the arrow (which I have...
The part pointed to by the arrow (which I have been calling the barrel) screws into the large part above and to the right, which contains the conical needle seat. The glass windows in that part are...
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25th July 2011, 09:38 PM
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Hmmn, I will have to strip one down and take some...
Hmmn, I will have to strip one down and take some more pics of the bottom of the valve seat, but I think that would work. Holding the sucker while turning it shouldn't be too hard--can use the...
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25th July 2011, 09:15 PM
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Poor experience from scott metals.
Thanks brett22---early bird steel pricelist was very helpful, alas they're clear on the other side of town.
Soundman, thanks for the info, esp on the brass. I have no trouble scrounging wood and... -
23rd July 2011, 09:48 PM
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oils is oils
I tracked down some Castrol Hyspin 68 spindle oil.
Still no control over oiler drip rate, so I stripped down the oilers and worked out the problem.
The needle valve barrel hadn't been deburred... -
21st July 2011, 10:27 PM
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Most of the metal on quicksales (aka oztion) is...
Most of the metal on quicksales (aka oztion) is Offcuts Galore (george vesley), whom we've been discussing. I see he has quite a bit of mild steel up this week, had hardly any last time I looked. ...
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21st July 2011, 10:18 PM
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Total Loss
Thank you all. I'm at a total loss with these oilers. (pauses for groans)
One of them adjusts between steady flow and about 6 drops a minute, the other one seems to have no appreciable movement... -
20th July 2011, 10:42 PM
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George at offcuts galore tells me he's not...
George at offcuts galore tells me he's not working in fabrication any more, so his "offcuts" are now new merchant bar chopped to order.
I've got a few bits of 20-30mm bar from flea markets, but I... -
20th July 2011, 09:52 PM
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Many thanks for everyone's ongoing advice. ...
Many thanks for everyone's ongoing advice.
Waggling the chuck up and down (scientific waggling of course!) while watching a dial indicator, I measure .06mm vertical movement in the spindle (about... -
19th July 2011, 08:41 PM
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Just got a pair of drip oilers from RDG in the...
Just got a pair of drip oilers from RDG in the mail.
I've no idea about drip rates or appropriate oils (apart from what I learned from
this thread and
this one.
What's a ballbark drip rate?... -
16th July 2011, 11:23 AM
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Thanks kev, I've bought from George at offcuts...
Thanks kev, I've bought from George at offcuts galore (he's on both ebay and oztion/quicksales) many times--this is where I've been getting my aluminium, brass, and some cold-rolled steel. Cost...
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16th July 2011, 09:59 AM
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Thanks roger, that's a good idea. Chunks of axle...
Thanks roger, that's a good idea. Chunks of axle would get me by for some of my needs.
I'm basically after round steel in sizes 20mm--50mm, square around 40-50mm, and flat bar 12-20mm thick. ... -
15th July 2011, 09:21 PM
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To the member who responded by PM, thanks, I...
To the member who responded by PM, thanks, I can't reply because your mailbox is full.
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15th July 2011, 09:18 PM
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The feedshaft is driven off the leadscrew (a pair...
The feedshaft is driven off the leadscrew (a pair of 20t gears), so if I put the tumblers in neutral I could use the leadscrew halfnut to lock the carriage, yes.
Can't do that if using power... -
15th July 2011, 01:03 PM
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Lathe newbie seeks metal, western brisbane
I live in inner western brisbane (Kenmore) and I've just got my first
metal lathe.
I'm looking for places to get round and flat bar offcuts or short
lengths in western brissy (I only have access... -
14th July 2011, 11:02 PM
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Designing a carriage lock and improving carriage rigidity
I was tinkering about tonight and I notice that if I pull the carriage
toward the tailstock it will move down the bed, causing the handwheel to turn.
This can't be good for doing any significant... -
14th July 2011, 10:55 PM
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That sure looks likely to me. Then of course the...
That sure looks likely to me. Then of course the thread indicator casting would get lost...
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13th July 2011, 10:55 PM
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Pipeclay, you were dead right of course. There...
Pipeclay, you were dead right of course. There is a wormgear assembly which rides on the feedshaft, and engages either of two wormwheels, which drive either the crossfeed or the carriage feed by...
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13th July 2011, 10:41 PM
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Awesome, thanks a lot. It must have been...
Awesome, thanks a lot. It must have been raining bronze when they made these lathes. I have an article from a recent issue of Model Engineers Workshop magazine on making a thread indicator for a...
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11th July 2011, 11:45 PM
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I'd love some pictures of the thread dial...
I'd love some pictures of the thread dial (missing entirely on mine), and info on how properly set up change gears are laid out. I tried to set up 32tpi as per the chart, but couldn't make the...
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11th July 2011, 11:34 PM
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Well, I finally got the lathe home! I've spent...
Well, I finally got the lathe home!
I've spent about 2 weekends cleaning it up, lubing and adjusting and have taken a few cuts (enough to realize I have way less idea of what I'm doing than I... -
5th July 2011, 09:53 AM
Thread: Left-handed drill bits
by unixbigot- Replies
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If you decide on a lefthand drill as the best...
If you decide on a lefthand drill as the best option, mcjing.com.au have them for about $6 ea and they ship express post next day.
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5th May 2011, 10:03 AM
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Thanks a ton for this info! I suspect maybe the...
Thanks a ton for this info! I suspect maybe the adjusting nuts on not-quite-yet-my lathe have been abused with punch and hammer instead of C-spanner and may need to be replaced.
The picture of... -
4th May 2011, 02:29 PM
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Pipeclay, Bryan, I'm keen to find out what's...
Pipeclay, Bryan, I'm keen to find out what's actually going on inside the carriage too.
Since the backlash is present in the cross slide under powered or manual feed, you're right it must be... -
4th May 2011, 10:36 AM
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Thanks, I am of course excited to be getting this...
Thanks, I am of course excited to be getting this lathe into my own shed and out of its current cramped and abrasive quarters. Taking much longer than I'd hoped to achieve this.
The lathe has a...