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Member postings for HomeUse

Here is a list of all the postings HomeUse has made in our forums. Click on a thread name to jump to the thread.

Thread: Lost wax casting advice needed
08/02/2017 08:48:59

Following on from Neil’s post I can confirm that for one off castings a core of 3D printed PLA will “burn out” satisfactory for casting purposes, but if the 3D print is ABS then the “burn out” leaves a residue which creates faults in the casting - I have not cast in Brass, using mainly Aluminium and occasionally Silver

Thread: Locomotive Drivers
02/11/2016 12:41:17

Hi Neil - What is the finished scale you are looked for.

Thread: 3D printing seems to have gone quiet. Where are we all at?
30/04/2016 09:37:24

If you wish to wash out (Water Soluble Plastics) from the mould then it will need the mould to be made from a material that is stable in water and also in high temperatures - Normally for us model engineers the moulds would be smaller and made from a material such as “Investment Plaster” (A gypsum with additives) or a build up of ceramic slurries (China clay with additives) nether of which are really suitable for washing out (The china clay would be ok after firing but by then the wax would be burnt out)

Myself I use PLA filament in the printer and invest in “Plaster” then burn out in the furnace at the same tine as melting the metal (Usually Aluminium but also Brass/Bronze)

Water soluble filament is used in printing support structures and then dissolved out of the main strucure

Thread: How does this work
29/04/2016 08:56:14

Used to use one very similar in design but built in the early/mid 40’s to turn skittle balls out of “lignum vitae” on a peddle driven lathe (lathe later fitted with electric motor)

Thread: Stuart drain cocks
03/03/2016 13:53:16

Yes 5/32 x 40TPI (ME) Thread

Thread: TurboCAD Mac OS version
19/02/2016 09:05:05

Have been using TurboCad MacOS Version 7 and currently 8 for a few years now (Originally used Windows but new machine dictated the change)

Once you get used to it, it is a very powerful drawing system both for Architecture and Engineering Design - My hardest part was trying to forget the operating commands used in the windows versions as they are totally different.

Now I have got the hang of it, I could say that it could be slightly quicker to operate than the windows versions, but there is not a lot to chose between the two.indecision

Thread: Speed Control of Single Phase Motors
25/11/2015 14:08:34

The principal of variable speed pullies is described in the attached link - years ago there was articles on how to build one - can’t remember the magazine - link

Thread: Home made rotating centre
14/11/2015 12:09:12

At least you know the quality of the one you built, and not hoping that the eBay cheepy will live up a “fit for purpose” usage wink

Thread: Small lost wax casting supplier?
05/11/2015 10:50:34

There is a company on model engineers Facebook pages that specialise in lost wax casting ( 3D Printed wax ) - his email contact is - the company is Crow Fittings Engineering Services

Thread: Copper boiler
01/11/2015 16:30:03

If you have not used the stripper yet - make sure you soak the stripped boiler in warm soapy water after using the “mors” and then washing well in clean water

Thread: Speed Control of Brushless Motors
27/10/2015 09:41:12

Have used this controller for 12 & 24v motors Brushed and brushless - Am using 4 to control the motors in 5” gauge loco. Also on lathe feed screw.


You will need to type into search engine as does not work as link

Thread: supercharged V12 2 stroke
19/10/2015 09:51:52

Thanks Dean - “I had vision of massive calculations to adjust the weight of each piston embarrassed “ - But I really knew that it was a stupid question.

Hope the final lapping goes well

Regards Mike

18/10/2015 09:19:59

This may be a stupid question but is there any reason for some of the pistons having a domed recess in the bottom of the bore and other do not (8 do 4 do not) embarrassed

Keep up the good work

Thread: Prevention of seizure in aluminium threads
18/10/2015 09:10:50

Seem to get good results with cutting/tapping aluminium by using WD40 as a lubricant

Thread: See these adverts
16/10/2015 09:18:00

Trouble is the “Departments have not got joined up office communications” 👉 Diane you’ve been sacked 😢

Thread: Motors for 5 inch gauge loco
07/10/2015 09:01:03

I am using 4no 12V 100W (ex kids scooters) on a 5inch gauge Scratch built (American looking loco) - One fitted to each axle and driven by toothed belt geared to give top speed of 10MPH - Each motor is protected by a 10amp fuse and speed control is by a scratch built system. The power source is my caravan leisure battery - its on the heavy side but that helps to keep it on the track .

The loco pulls well and has ample power - although the next one will have 6 axles with 6no 12V 130W motors.


Thread: supercharged V12 2 stroke
19/09/2015 12:43:08

Hi Dean - Glad to see the update - keep them coming as it is a great project wink

Thread: Download magazines onto an Ipad
23/08/2015 10:49:27

The “one to be obeyed” is now complaining that the updated version iOS has changed the operation of the tablet for the apps she uses - Cant win can we secretfrown

23/08/2015 10:34:24

“O SO RIGHT” Neil crook

23/08/2015 09:39:37

Updated iOS on wife’s pad - Works ok now - She’s not to happy about me using it when on holiday dont knowcrying 2

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