Member postings for Journeyman

As we have drifted off-topic somewhat here are a few image for things in the centre of tracks:

Track at Városkút on a line that meanders from Városmajor to Széchenyi-hegy in the Buda Hills, Budapest, Hungary. This is a rack railway and quite steep in places.

Close-up of the rack.

Somewhat fuzzy image of the train.

Link to a YouTube video

Link to Wikipedia page

John

Edit: Add Links

Edited By Journeyman on 23/02/2022 11:42:00

National Model Engineering and Modelling Exhibition at Doncaster is definitely NOT on in 2022.

See website for details **LINK**

John

Re: above it is indeed a trap. A Push-Fit Single Socket Round Grid Bottle Gully 110mm. Manufacturers blurb says :- Bottle gully with circular lid. Designed to hold water to stop foul air escaping from the drainage system. Will accept waste water from kitchens, utility rooms and ground floor bathrooms, or rainwater from paved areas or roofs.

John

Edited By JasonB on 21/02/2022 18:34:40

I think it is one of these:-

A Push-Fit Single Socket Round Grid Bottle Gully 110mm. Manufacturers blurb says :- Bottle gully with circular lid. Designed to hold water to stop foul air escaping from the drainage system. Will accept waste water from kitchens, utility rooms and ground floor bathrooms, or rainwater from paved areas or roofs.

John

Edited By Journeyman on 21/02/2022 11:50:15

I think it is just the top part of this:-

Push-Fit Single Socket Round Grid Bottle Gully 110mm. Any trap would come after the outlet.

John

Edited By Journeyman on 21/02/2022 11:16:51

Edited By JasonB on 21/02/2022 18:34:29

Had a key-safe at Mum's for years with no problems. Good quality safe fitted securely and out of sight if possible. As for Yale type have used these euro locks by ABS a cut above the average Yale for security but assumes a modern door. Used with thumb-turn on the inside (as fire Brigade recommended) avoids key on inside.

John

There was a fairly recent thread on this topic:-

*** Drill Table Clamp ***

or a bit older 2018

*** Drill Table Clamps ***

John

Edited By Journeyman on 10/02/2022 09:56:54

I'll second Thomas Sanladerer his *** Utube channel *** is very informative.

John

The *** Prusa Forum *** is quite informative if a little biased. The *** Cura / Ultimaker *** forum is similarly biased. *** All3DP *** is a useful info source. Haven't any knowledge of *** 3D Printing Forum *** might be worth a look

John

Edited By Journeyman on 08/02/2022 10:48:48

I'll second that.

He speaks of a traditional 9000 sq ft home set in 110 acres. The average UK home is 656 sq ft. Bourgeois extravagance at it's best (worse) I could think of better uses for the copious wealth.

John

Current building regs go along the lines of this:-

Add reinforcing mesh to concrete slab for extra load bearing. Infill layer would be hardcore with a sand blinding on top. Heating if required in the top screed. If machines need fixing to floor heating element position needs careful planning.

John

Would look quite interesting with a helical Darrieus rotor on top of each pylon

*** Darrieus wind turbine ***

John

Whilst some natural woods are fairly stable (mahogany) all will move over time. MDF remains flat and if well varnished all round will not be affected by moisture. If veneering MDF do both top and bottom to prevent any stresses from the veneer trying to bend the MDF. The chamfer around the top would be difficult to veneer but a possible solution would be to make a separate hard wood frame with a chamfer on the outside top and a rebate on the inside top to take the base. Simply drop the base into the frame don't glue it and then if the frame moves the base will stay flat. An upside down picture frame if you will.

John

Edited By Journeyman on 06/02/2022 10:01:24

Be aware that silica gel does not last particularly long before it has adsorbed all the moisture it can. It is possible to buy silica gel with an indicator that changes from yellow when dry to purple when wet. Silica gel can be revived easily in the microwave a few minutes at full power or more slowly in an ordinary oven. *** Silica Gel with Indicator ***

John

Looks like one of Weiss' badge engineered offerings though I can't track down the exact model. I would have thought by the time you add Customs, transport and handling, VAT etc. it will be up to the price of a Warco or Chester similarly badge engineered Weiss.

John

PLA should probably not be kept above 50C for any length of time as it will start to 'change' above that temperature. The glass transition (Tg) of PLA is in the region of 65C (PETG around 75C) This is not the melting point but a temperature at which the material begins to move from solid to liquid (change of state). Safer to use an unheated box with silica gel to remove moisture, will take longer but may prevent some permanent changes mainly shrinkage. Of course if you kept a reel of PLA at 100C for a long time it would likely become a solid block.

The glass transition temperature is useful to know as it is used when annealing prints to improve strength. Maintained at a suitable temperature a printed item will increase in strength as the layers gradually bond together. Of course if overheated the print will become a blob!

Useful article on annealing at Prusa's website. - *** How to improve your 3D prints with annealing ***

John

Edited By Journeyman on 04/02/2022 08:57:54

For multiple holes in multiple parts I would have thought that jigs or fixtures was the way to go. One operation on all parts and then change jig for next operation on all parts etc. Mill tables and winding handles is for one off operation (or at least just a few)

John

I was curious as to what this might be so:-

Octopus webpage

John

Only 3 episodes - on iPlayer

John

They are probably from here - Trackwork Doncaster UK

John