KeithHC

Hi Christian, my process is different. I do each side as a 2mm thick piece and draw each window door etc. I create each door opening by first putting in one line and then each side drawing a .13mm rectangle each side of that line. Once I have pulled the design up 2mm overall and each door edge by .75mm. I then highlight one end and draw a circle of 112mm R/224mm Diameter I then use the pull tool to cut out the required surface. I do similar for the ends. Then I open up a new design and import each piece and build the carriage. Might be longwinded but it works for me. Also I am NOT an expert so am probably getting it wrong. I have done the start of the underframes including the multiple step boards. And printing at moment the first draft of a fuel tank just see what it looks like. Hope that helps. Keith

Thanks for the kind comments. In a way it was following a couple of your threads that gave me the confidence to have a go. I tried bender but just could not get on with it. It has taken me two years to get to my current level and setting on Designspark Mechanical as my preferred software. However even now this software throws a curved ball every now and again. There is the old saying that you learn something new every day well with 3D that happens all the time. Keith

So I have had a bit of a printer update with thanks to my Son-in-law. A new PEI plate and a CR touch that resolves bed levelling. I have still been been drawing and improving my skill set and have managed to produce a 3D in 3D sorry for the pun…. I know there are people out there that don’t like 3D but for me it’s a game changer. I have for years dreamed of being able to turn metal or plastic into fantastic models. I have tried to go the scratch build route but I am too ham fisted. So 3D is the answer to my prayers. Now at the moment my models are not up to the rivet counters levels but considering the latest prints I feel they could work well at the three feet viewing distance. I have a lot more to do including underframes and roofs. I am considering motorising using Hornby 101 power unit yes I know the wheel base is out by 1mm but I can live with that. Next on my list is either a tadpole/Hastings or a Berkshire unit. Keith

Looking very good Andy keep it coming. It’s nice to compare my 3D with your photos. Keith

Im working on the next question…………….. he he he he Keith

Heaven………………. Keith

Use a sewing threader you might get a few looks when you buy one though. Keith

Yes it’s me again with more questions…….. I am currently slowly producing CAD designs of various BR(S) DEMUs Oxteds, Berkshires and Hastings. As I get deeper into the design I am adding more and more detail this leads me onto the following questions. What are the dimensions of the door stops diameter and the length of the stop protruding above the surface. What are the dimensions of the position of the door stops. Also what are the dimensions of the hinges again what is the length that they protrude above the surface and what are the dimensions of the relevant positions over the three hinges. and finally, what are the dimensions of the standard “T” door handle and again the dimensions of the relevant position. Many thanks Keith

Yep thats what i am asking about. Keith

In particular both the 2/3H and 3D DEMUs these show up on pictures on Google. Just checked and it appears on most other BR(S) mu so probably from post 1951. Keith

Just a quick question for all you experts. I notice from pictures that located above the drivers window there is a cut out about 3ins square located under the gutter. On some pictures the background in the cut out is body colour and some times red. Do I presume this is an indicator for handbrake on or off. Keith

A couple of questions for the DEMU experts. The 2H when original built was based on the 2HAPs being built at the same at Eastleigh. As both types are basically similar could the DEMUs be built as dual mode. Could also the 6L and 6B have been built to restriction 4 and as Electro Diesel MU as further units for the western section. These units if possible could have been on the juice to Basingstoke for Salisbury and Exeter and to Bournemouth for Weymouth. Keith

Another day another trial. I took the Oxted MBSO front and tried a reduction by 52% to produce an approximate N gauge version to see if it worked. Seams to have come out ok. Keith

Well nearly three years ago I got a FDM printer and started the process of learning to do 3D design. I have been lucky that my son-in-law who is an aerospace engineer has the same printer as me. However it has taken since getting the printer this long to learn to use the software. I tried several different types. Looked at Blender gave up. Tried Onshape had issues with WiFi. So eventually found Designspark Mechanical. This works as a stand alone unit so I do not have to worry about my poor WiFi. My house has the remnants of a hot air heating system and has hidden metal ducting in various walls, floors etc affecting the signal. I have three WiFi boosters around the hose to compensate. After a couple of years watching various videos and playing with simple designs I have found away of getting a design to print. Ok I know that FDM is not the right printer for 4mm scale but it is good to practice and produce mules to see if I am getting it right. The boss has already said I can get a resin printer but until I am happy with what I am going it will be sometime before a new machine appears. I am also lucky in tha I have a large enough garage that I can st up in and still have the car inside. It’s a large single garage under the house about 25ft long. So onto Thump(ers), I have been planning for many years on building a layout based on Rowfant and Grange road and I need a couple of BR(s) demus namely the cut down Oxted variant. Now I have a badly unfinished DC kits unit that being the ham fisted modeller I had put together. However a couple of years ago I broke off one of the cab fronts and with a hose move this has disappeared. So I thought could I do a design and print a unit out. So I started with the dimensions of a BR mk1 coach and the diagram drawing from the Barrowmore group and had a go. Well it seams I can get there it’s not perfect yet but until I have a resin printer it will do. Seeing as in effect all the DEMUs used standard jigs it is possible to model all the various options. I want to have a Tadpole and a 6S as well. But I have also worked on the Berkshire variant as well. Well for now I will shut up and include a shot of efforts so far. Yes I know they are not 100% but they will get better. Keith

Looking good Andy. Waiting to see the full unit well done. Keith

Ah and early rush from the editing of the new Titfield Thunderbolt…….. Keith

I go with the Ricky Gervais from the Office….. “If a first you do not succeed destroy the evidence”. Keith

Also Ronnie Biggs lived in Redhill for some time. Keith

Great to hear all is going well. Looking forwards to updates in the future. I do like the use of both steam and diesel this is one layout that captures the transition from one to the other. Keith

What’s the latest from Leeds haven’t seen anything for 9 months. This is one of my want to see layouts…….. Keith

Ah if you are having turnips then you must have a cunning plan…………. Baldrick Keith

If you click on the designers I’d he has a total of 44 designs some of which are other lorries including the Scammel Scarb. Keith

With all those puddles that Vauxhall is way too clean. But a great model. Keith

One of a fleet of 50 operated by Northern. The only sales of the Routemaster out of London. Keith

A fantastic set of shots please please keep them coming. Have you any of the other DEMU types by chance. I am working very slowly on several types in CAD for 4mm. Namely Hampshire’s and the Berkshire version the Tadpole and then by default the 6S also the Oxteds. Keith Sorry Andy to hack your thread but following your build with interest.