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Member postings for David Marks 1

Here is a list of all the postings David Marks 1 has made in our forums. Click on a thread name to jump to the thread.

Thread: Gorilla Wood Glue
15/11/2020 08:36:33

Has anyone tried this product? I have been using aliphatic type PVA for some time and been very pleased with it, but my current supply which is from the Jim Perkins (JP) range is about to run out . The advantage of the Gorilla brand is that it is about 50% cheaper and more readily available i.e. it is stocked by my local Srewfix.

Thread: Machine Tools
23/10/2020 11:04:49

Regarding the tube, what is the critical dimension, the outside or inside diameter? I used to turn copper tube for a bloke that made hot air engines which requires the tube to have a thin wall thickness. The way around that one was to find a tube with the correct i/d and after mounting on a mandrel turn down the o/d to the correct size. It also overcame the problem that you find with most tube i.e. the i/d and o/d are not concentric.

Thread: making rudders
02/10/2020 11:18:00

Steven. Perhaps you could explain what you mean by the term "stock"

Thread: Machine Tools
12/09/2020 11:56:27

Dave - Regarding the "play" that you have found. Please note that all devices that rely upon a screw and nut system to provide movement will have a degree of play otherwise movement would be impossible i.e. like a fully tighten nut and bolt. The free-black experienced when changing direction just needs to be taken into account.

Thread: Dolphin Yard Sailing Barge Museum
28/08/2020 19:57:08

Ray - Well done, that was quick work. From the discussion that I had yesterday with the Chairman of the museum, there is also a proposal to have a boating pond facility for the younger generation to get some "hands on" rather than just viewing items in a showcase. I am not sure but it may allow the formation of another model boat club or at least generate some enthusiasm from the younger generation to build and sail a model boat.

Thread: Machine Tools
28/08/2020 19:50:52

My background is in the mechanical engineering workshop field. Consequently (apart from model boats) I involve myself in mechanical items and spent a considerable time supporting my son who scratch built as Lotus 7 lookalike. So machinery wise I have a pedestal drill (Axminster) combined lathe/milling machine (Chester) and a mini milling machine (Arc Eurotrade). Regarding accuracy, reliability etc, I am very pleased with all of them especially for the price paid. There was an earlier comment about Arc Eurotrade which I fully support. A very good supplier to deal with and the way the mini mill was presented was absolutely superb. If you have a Lidl supermarket near to you have a look at their Parkside range of larger tools. A friend of mine purchased one of their bench drills which I tried out and I found it very good value. Their Powerfix range of smaller hand tools are also superb value …£10 for a 6 inch - 150 mm digital caliper……very good indeed.

Thread: Dolphin Yard Sailing Barge Museum
27/08/2020 16:54:41

I am the chairman of my local model boat club based in Orpington, Kent. The club has been approached by the Chairman of Dolphin Yard Sailing Barge Museum located at Sittingbourne, Kent. The museum has been donated a number of model sailing barges to use as exhibits but these require a degree of refurbishment. If anyone residing in that area is interested in volunteering then please send me a p.m. and I will provide contact details.

Thread: Adhesive
04/08/2020 07:12:07

Colin - Yes you are correct about Shop4glue now being based in Bulgaria however their website which was dormant for a long time is now up and running and you can now purchase products for shipment to the UK. Never purchased from them by this method, only from their stand at the Warwick show.

03/08/2020 22:28:01

I normally scratch build - wooden hull and Plasticard superstructure. I use an Aliphatic type glue for the wood and solvent weld the Plasticard. I find the glues available from Shop4Glue to be very good. They sell Aliphatic and their brand name for the solvent is Polyweld. The latter is the best solvent glue that I have ever used.

Thread: Alignment tools
03/08/2020 16:49:42

Neil - If you do not get any joy from Dave Milbourn's suggestion try your local model boat club or model engineering club/society. I have made bits (including alignment tools) for club members and just get them to put a donation in the Rescue Boat which is my clubs collection box, with donations going to off-set the cost of pond hire and insurance.

Thread: Engine mounting
16/07/2020 13:08:20

The red plastic coupling (trade name Huco) should be set up so that both halves are on a common axis. To do this I replace the plastic piece with a dummy body (made from aluminium bar) of the same length and bore size so that it accepts the two brass inserts. Once alignment is achieved the dummy body is replaced by the red plastic section.

Thread: One ESC, or two
04/07/2020 16:01:00

Dave - Sorry to be a pain in the whatsit especially on Super Saturday. I am having no joy at all regarding setting up the Action P94 Dual ESC/Mixer. I am trying to set up Mode 3 using a Planet 7 Tx and corresponding Rx. Mode switch is set correctly at 1 OFF and 2 ON. Connection to Steering Servo is on H1, with the lead marked T connected to THR on the Rx. I have tried the lead marked S on AIL, ELV and RUD in turn all without success. By moving the R/H stick side to side there is small intermittent movement of the twin rudders. I cannot achieve any movement of the props. The nearest that I achieve is a mild glow on the LEDs fitted to the P95 Indicator Boards. Any clues please? My only thought is that the Planet 7 may not be compatible with the P94. Thank you in advance - Regards David Marks

01/07/2020 20:27:36

Many thanks - Dave

01/07/2020 12:11:57

Dave - I am trying to incorporate a Micro Diesel Sound Simulator (P63) with the P94 previously mentioned in the earlier posts. Am I correct in saying that I connect the ESC terminal on the P63 to the terminal marked H2 on the P94 and therefore require a lead with a male connection on each end? This item being available from Component Shop.

Many Thanks - David Marks

20/05/2020 06:40:20

Dave - Many thanks for that. I carefully preserved the paste on the removed units so will add that on reassembly.

19/05/2020 19:34:53

Dave - I have made a a pair of "gull wings" from extruded aluminium as advised. On dismantling the unit, there were no Heat Transfer Pads i.a.w the Assy Drg but there was a small quantity of white paste at each interface point which I assume is now used in lieu of the HTPs. Is there a household equivalent to this paste or is it a question of scrounging some from Kyje at CS. Many thanks.

Thread: Help please! Inherited some boats!
19/05/2020 13:41:23

Darren - Make contact with your local model boat club. I am a committee member of Dolphin, based in Orpington, Kent and get about four or five calls per year regarding `loft finds` etc. If the models are worth anything, the money is usually donated to either club funds or a nominated charity e.g. RNLI.

Thread: One ESC, or two
30/04/2020 15:10:03

Yes, thanks for that I will give it a try. I think the total void depth is 32 mm and I always have a good stock of extruded ali angle as I often use it as an assembly aid or for such things as making my own motor mounts.

30/04/2020 13:58:34

Dave - Many thanks for you prompt response. I had purposely made the void below the deck between the two hulls a bit deeper to allow for the depth of the enclosure used for the majority of the Action units but unfortunately the P94 has the two heat sinks. As I cannot use an alternative location it will be neat hole in the deck to allow the heat sink to protrude and then a suitable cover such as a dummy crate. That is why I enjoy scratch building....problem solving.

All the best - Keep safe

30/04/2020 08:14:45

I am currently scratch building a catamaran workboat in 1:16 scale, based on the drawings for a James Pottinger design called Searcher. The vessel has twin 540/1 motors, 35mm props and twin rudders. I will be using two 6V batteries connected in parallel. I will control the two rudders via `Y’ lead. Please could someone advise the best way to control the two motors i.e. one ESC or two. I normally now use Action products. Many thanks.

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